# What actually causes Red / Yellow cluster health **URL:** \ **Category:** Elasticsearch\ **Created:** [March 3, 2015, 10:49am UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485 "2015-03-03T10:49:13Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 10:49am UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/1 "2015-03-03T10:49:13Z")
Hello all I have 2 nodes (two different machines) and on occasion the cluster goes from green to yellow (my cluster health is below, and at the moment all is good) "cluster\_name" : "elasticsearch", "status" : "green", "timed\_out" : false, "number\_of\_nodes" : 2, "number\_of\_data\_nodes" : 2, "active\_primary\_shards" : 11, "active\_shards" : 22, "relocating\_shards" : 0, "initializing\_shards" : 0, "unassigned\_shards" : 0 } I have read what the different status colours mean, but I cant find anywhere that says WHY these things happen i.e. network issue, cpu load etc etc. Are the any main reasons that would give cause to red / yellow health? ive got monitoring on my cluster to alert me when its not green, and I can go and restart the slave server, then it goes back to green.. but still this does not identify the root cause as to why this happens? Any comments would be greatly appreciated 🙂 Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [March 3, 2015, 11:47am UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/2 "2015-03-03T11:47:15Z")
Yellow means unassigned replicas. Red means unassigned primaries. It'll change (quickly) if you add a new index, as it needs to create and allocate primaries and then secondaries. On 3 March 2015 at 21:49, Steven Williams [cybordax@googlemail.com](mailto:cybordax@googlemail.com) wrote: > Hello all > > I have 2 nodes (two different machines) and on occasion the cluster goes > from green to yellow (my cluster health is below, and at the moment all is > good) > > "cluster\_name" : "elasticsearch", > "status" : "green", > "timed\_out" : false, > "number\_of\_nodes" : 2, > "number\_of\_data\_nodes" : 2, > "active\_primary\_shards" : 11, > "active\_shards" : 22, > "relocating\_shards" : 0, > "initializing\_shards" : 0, > "unassigned\_shards" : 0 > } > > I have read what the different status colours mean, but I cant find > anywhere that says WHY these things happen i.e. network issue, cpu load etc > etc. > > Are the any main reasons that would give cause to red / yellow health? > > ive got monitoring on my cluster to alert me when its not green, and I can > go and restart the slave server, then it goes back to green.. but still > this does not identify the root cause as to why this happens? > > Any comments would be greatly appreciated 🙂 > > Cheers > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X92wLCFbNRVb5h6CS4y%3D2%2B0Rj14CAr8LjBNMayv8Wjdyw%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X92wLCFbNRVb5h6CS4y%3D2%2B0Rj14CAr8LjBNMayv8Wjdyw%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 12:05pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/3 "2015-03-03T12:05:49Z")
Hello - thanks for the reply Mark, greatly appreciated. i get what the different codes mean.., but not why they actually happen. the two nodes I have. one of them runs scheduled jobs that gets data from a products table from mySql into elastic. it does this every day at 8am as a master update. then it updates stock for these items, every 15 mins. it does this every day and every 15 mins, and currently again, the status is green for my cluster. so why would it suddenly go to yellow if the nodes are doing what they normally do on a daily basis? im trying to identify if I have a network issue, a cpu load issue, a memory leak issue etc. so then I can address them and fix it, so that I dont get yellow status again. Cheers On Tuesday, 3 March 2015 11:47:52 UTC, Mark Walkom wrote: > Yellow means unassigned replicas. Red means unassigned primaries. > > It'll change (quickly) if you add a new index, as it needs to create and > allocate primaries and then secondaries. > > On 3 March 2015 at 21:49, Steven Williams \<[cybo...@googlemail.com](mailto:cybo...@googlemail.com) > \\> wrote: > > > Hello all > > > > I have 2 nodes (two different machines) and on occasion the cluster goes > > from green to yellow (my cluster health is below, and at the moment all is > > good) > > > > "cluster\_name" : "elasticsearch", > > "status" : "green", > > "timed\_out" : false, > > "number\_of\_nodes" : 2, > > "number\_of\_data\_nodes" : 2, > > "active\_primary\_shards" : 11, > > "active\_shards" : 22, > > "relocating\_shards" : 0, > > "initializing\_shards" : 0, > > "unassigned\_shards" : 0 > > } > > > > I have read what the different status colours mean, but I cant find > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > etc. > > > > Are the any main reasons that would give cause to red / yellow health? > > > > ive got monitoring on my cluster to alert me when its not green, and I > > can go and restart the slave server, then it goes back to green.. but still > > this does not identify the root cause as to why this happens? > > > > Any comments would be greatly appreciated 🙂 > > > > Cheers > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/02120a2d-52cc-4a55-afae-d90e816522c8%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e0c919cd-5bb6-4d79-bdad-c39436e0d8eb%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e0c919cd-5bb6-4d79-bdad-c39436e0d8eb%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 12:33pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/4 "2015-03-03T12:33:10Z")
What sort of monitoring are you having.. and how are you getting alerts when the state of the cluster changes..? Is there some plugin that I can install? We are facing similar problems as well.. Even more scary my nodes are leaving the cluster from time to time and rejoin the cluster.. Because of this lots of shards go to "unassigned" state and it takes several minutes for the cluster to get back to normal green state.. I came across this blog post that suggested me to change my garbage collector to G1GC from the default ConcMarkSweepGC, so that stop the world garbage collections will not occur anymore.... Still my nodes are leaving the cluster 😮 Can you tell me what sort of monitoring are you using to get alerts when cluster state changes. Thank you. On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > Hello all > > I have 2 nodes (two different machines) and on occasion the cluster goes > from green to yellow (my cluster health is below, and at the moment all is > good) > > "cluster\_name" : "elasticsearch", > "status" : "green", > "timed\_out" : false, > "number\_of\_nodes" : 2, > "number\_of\_data\_nodes" : 2, > "active\_primary\_shards" : 11, > "active\_shards" : 22, > "relocating\_shards" : 0, > "initializing\_shards" : 0, > "unassigned\_shards" : 0 > } > > I have read what the different status colours mean, but I cant find > anywhere that says WHY these things happen i.e. network issue, cpu load etc > etc. > > Are the any main reasons that would give cause to red / yellow health? > > ive got monitoring on my cluster to alert me when its not green, and I can > go and restart the slave server, then it goes back to green.. but still > this does not identify the root cause as to why this happens? > > Any comments would be greatly appreciated 🙂 > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a8f80f04-b8ba-429b-be7e-751564b76f6b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a8f80f04-b8ba-429b-be7e-751564b76f6b%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 12:33pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/5 "2015-03-03T12:33:44Z")
Link to blog post [http://tech.taskrabbit.com/blog/2014/07/18/elasticsearch-in-production/](http://tech.taskrabbit.com/blog/2014/07/18/elasticsearch-in-production/) On Tuesday, March 3, 2015 at 6:03:10 PM UTC+5:30, Anil Karaka wrote: > What sort of monitoring are you having.. and how are you getting alerts > when the state of the cluster changes..? Is there some plugin that I can > install? > > We are facing similar problems as well.. Even more scary my nodes are > leaving the cluster from time to time and rejoin the cluster.. Because of > this lots of shards go to "unassigned" state and it takes several minutes > for the cluster to get back to normal green state.. > > I came across this blog post that suggested me to change my garbage > collector to G1GC from the default ConcMarkSweepGC, so that stop the world > garbage collections will not occur anymore.... > Still my nodes are leaving the cluster 😮 > > Can you tell me what sort of monitoring are you using to get alerts when > cluster state changes. > > Thank you. > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > Hello all > > > > I have 2 nodes (two different machines) and on occasion the cluster goes > > from green to yellow (my cluster health is below, and at the moment all is > > good) > > > > "cluster\_name" : "elasticsearch", > > "status" : "green", > > "timed\_out" : false, > > "number\_of\_nodes" : 2, > > "number\_of\_data\_nodes" : 2, > > "active\_primary\_shards" : 11, > > "active\_shards" : 22, > > "relocating\_shards" : 0, > > "initializing\_shards" : 0, > > "unassigned\_shards" : 0 > > } > > > > I have read what the different status colours mean, but I cant find > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > etc. > > > > Are the any main reasons that would give cause to red / yellow health? > > > > ive got monitoring on my cluster to alert me when its not green, and I > > can go and restart the slave server, then it goes back to green.. but still > > this does not identify the root cause as to why this happens? > > > > Any comments would be greatly appreciated 🙂 > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/09439944-fd53-4652-8d1c-5a374d10c05a%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/09439944-fd53-4652-8d1c-5a374d10c05a%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 12:44pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/6 "2015-03-03T12:44:03Z")
Hello Anil - thanks for your reply Im glad that someone else is experiencing this too! Ive made my own custom monitor.. using [vb.net](http://vb.net) - its simply an application that runs every so many minutes (currently 5) via scheduled task on windos machine that looks at the health of the cluster.. so it would look at the ipaddress where the elastic db is then the port number.. so for example [http://192.169.1.1:9200](http://192.169.1.1:9200) then the api that looks for the health.. so the entire url would be. [http://192.169.1.1:9200/\_cluster/health?pretty=true](http://192.169.1.1:9200/_cluster/health?pretty=true) and I get the below result... { "cluster\_name" : "elasticsearch", _"status" : "green"_, "timed\_out" : false, "number\_of\_nodes" : 2, "number\_of\_data\_nodes" : 2, "active\_primary\_shards" : 11, "active\_shards" : 22, "relocating\_shards" : 0, "initializing\_shards" : 0, "unassigned\_shards" : 0 } .. then the bit that says status green.. I look for that in my app and if its anything else other than green, I make the app email myself. This works for me, BUT.. it still does not explain WHY these things happen, and I would rather diagnose why these happen,to stop them from happening again. I dont have nodes leaving my cluster.. I have two separate machines running windows, and they are both always in the cluster, but for whatever reason - the cluster sees fit to turn yellow on occasion, (not regularly, but every now and then) which I understand that replicas didnt happen on some shards.. but I want to know whyyyyyy lol 🙂 Cheers 🙂 On Tuesday, 3 March 2015 12:33:10 UTC, Anil Karaka wrote: > What sort of monitoring are you having.. and how are you getting alerts > when the state of the cluster changes..? Is there some plugin that I can > install? > > We are facing similar problems as well.. Even more scary my nodes are > leaving the cluster from time to time and rejoin the cluster.. Because of > this lots of shards go to "unassigned" state and it takes several minutes > for the cluster to get back to normal green state.. > > I came across this blog post that suggested me to change my garbage > collector to G1GC from the default ConcMarkSweepGC, so that stop the world > garbage collections will not occur anymore.... > Still my nodes are leaving the cluster 😮 > > Can you tell me what sort of monitoring are you using to get alerts when > cluster state changes. > > Thank you. > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > Hello all > > > > I have 2 nodes (two different machines) and on occasion the cluster goes > > from green to yellow (my cluster health is below, and at the moment all is > > good) > > > > "cluster\_name" : "elasticsearch", > > "status" : "green", > > "timed\_out" : false, > > "number\_of\_nodes" : 2, > > "number\_of\_data\_nodes" : 2, > > "active\_primary\_shards" : 11, > > "active\_shards" : 22, > > "relocating\_shards" : 0, > > "initializing\_shards" : 0, > > "unassigned\_shards" : 0 > > } > > > > I have read what the different status colours mean, but I cant find > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > etc. > > > > Are the any main reasons that would give cause to red / yellow health? > > > > ive got monitoring on my cluster to alert me when its not green, and I > > can go and restart the slave server, then it goes back to green.. but still > > this does not identify the root cause as to why this happens? > > > > Any comments would be greatly appreciated 🙂 > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/b34b57eb-427a-4e6d-b536-91cad205f438%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/b34b57eb-427a-4e6d-b536-91cad205f438%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 12:53pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/7 "2015-03-03T12:53:58Z")
How long does your cluster stay in that state? and how many indexes in your cluster? replica/shard count etc etc? On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > Hello all > > I have 2 nodes (two different machines) and on occasion the cluster goes > from green to yellow (my cluster health is below, and at the moment all is > good) > > "cluster\_name" : "elasticsearch", > "status" : "green", > "timed\_out" : false, > "number\_of\_nodes" : 2, > "number\_of\_data\_nodes" : 2, > "active\_primary\_shards" : 11, > "active\_shards" : 22, > "relocating\_shards" : 0, > "initializing\_shards" : 0, > "unassigned\_shards" : 0 > } > > I have read what the different status colours mean, but I cant find > anywhere that says WHY these things happen i.e. network issue, cpu load etc > etc. > > Are the any main reasons that would give cause to red / yellow health? > > ive got monitoring on my cluster to alert me when its not green, and I can > go and restart the slave server, then it goes back to green.. but still > this does not identify the root cause as to why this happens? > > Any comments would be greatly appreciated 🙂 > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/9960c296-9e74-476a-8f3c-9341e43a6d90%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/9960c296-9e74-476a-8f3c-9341e43a6d90%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 1:01pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/8 "2015-03-03T13:01:11Z")
Hello Stays in Green status: for about a couple of weeks Goes to Yellow Status: until I reboot the node that is basically considered the slave machine. Rivers: 1 Index/tables: 2 one table is the Kibana thing I installed to try it out. the other table is the main products table that has about 1.8 million records. - main master update done on it every day at 8am - smaller stock level updates done every 15 minutes only for stock levels that have changed since 15 mins ago. Do you want me to see if I can adapt my app so that it will take parameters so you can use it on your system? needs to be on a windows machine though 🙂 On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > How long does your cluster stay in that state? > > and how many indexes in your cluster? > > replica/shard count etc etc? > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > Hello all > > > > I have 2 nodes (two different machines) and on occasion the cluster goes > > from green to yellow (my cluster health is below, and at the moment all is > > good) > > > > "cluster\_name" : "elasticsearch", > > "status" : "green", > > "timed\_out" : false, > > "number\_of\_nodes" : 2, > > "number\_of\_data\_nodes" : 2, > > "active\_primary\_shards" : 11, > > "active\_shards" : 22, > > "relocating\_shards" : 0, > > "initializing\_shards" : 0, > > "unassigned\_shards" : 0 > > } > > > > I have read what the different status colours mean, but I cant find > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > etc. > > > > Are the any main reasons that would give cause to red / yellow health? > > > > ive got monitoring on my cluster to alert me when its not green, and I > > can go and restart the slave server, then it goes back to green.. but still > > this does not identify the root cause as to why this happens? > > > > Any comments would be greatly appreciated 🙂 > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/65bd6280-c761-42e6-8d66-36a5e081691d%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/65bd6280-c761-42e6-8d66-36a5e081691d%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 1:09pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/9 "2015-03-03T13:09:24Z")
My Elasticsearch cluster is is on Ubuntu.. but I also have a small windows instance inside the VPC, so that I can rdp into it to use plugins like kopf, bigdesk etc.. Basically I have a windows instance that can query my cluster.. Is that enough to use your solution? Thanks a bunch 🙂 On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > Hello > > Stays in Green status: for about a couple of weeks > Goes to Yellow Status: until I reboot the node that is basically > considered the slave machine. > > Rivers: 1 > Index/tables: 2 > one table is the Kibana thing I installed to try it out. > the other table is the main products table that has about 1.8 million > records. > > - main master update done on it every day at 8am > - smaller stock level updates done every 15 minutes only for stock levels > that have changed since 15 mins ago. > > Do you want me to see if I can adapt my app so that it will take > parameters so you can use it on your system? > needs to be on a windows machine though 🙂 > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > How long does your cluster stay in that state? > > > > and how many indexes in your cluster? > > > > replica/shard count etc etc? > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > > > Hello all > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > goes from green to yellow (my cluster health is below, and at the moment > > > all is good) > > > > > > "cluster\_name" : "elasticsearch", > > > "status" : "green", > > > "timed\_out" : false, > > > "number\_of\_nodes" : 2, > > > "number\_of\_data\_nodes" : 2, > > > "active\_primary\_shards" : 11, > > > "active\_shards" : 22, > > > "relocating\_shards" : 0, > > > "initializing\_shards" : 0, > > > "unassigned\_shards" : 0 > > > } > > > > > > I have read what the different status colours mean, but I cant find > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > etc. > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > ive got monitoring on my cluster to alert me when its not green, and I > > > can go and restart the slave server, then it goes back to green.. but still > > > this does not identify the root cause as to why this happens? > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 1:15pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/10 "2015-03-03T13:15:50Z")
yeah that will work, so long as the windows server has the latest .net framework on then all it will do is simply make a http request to the URL that you specify when calling the app, it will then get the JSON response from your Elastic Custer URL, and then if NOT green, it will email you on the address you specify from the smtp host you specify 🙂 Want to give it a go? ill need to tweak the app my end... and if you have visual studio 2010, i can give you the sourcecode / project so if you wished you could alter the program further (and also check the code out to see that it is not doing anything malicious) 🙂 On Tue, Mar 3, 2015 at 1:09 PM, Anil Karaka [anilkaraka@gmail.com](mailto:anilkaraka@gmail.com) wrote: > My Elasticsearch cluster is is on Ubuntu.. > > but I also have a small windows instance inside the VPC, so that I can rdp > into it to use plugins like kopf, bigdesk etc.. > > Basically I have a windows instance that can query my cluster.. Is that > enough to use your solution? > > Thanks a bunch 🙂 > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > > > Hello > > > > Stays in Green status: for about a couple of weeks > > Goes to Yellow Status: until I reboot the node that is basically > > considered the slave machine. > > > > Rivers: 1 > > Index/tables: 2 > > one table is the Kibana thing I installed to try it out. > > the other table is the main products table that has about 1.8 million > > records. > > > > - main master update done on it every day at 8am > > - smaller stock level updates done every 15 minutes only for stock levels > > that have changed since 15 mins ago. > > > > Do you want me to see if I can adapt my app so that it will take > > parameters so you can use it on your system? > > needs to be on a windows machine though 🙂 > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > How long does your cluster stay in that state? > > > > > > and how many indexes in your cluster? > > > > > > replica/shard count etc etc? > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > > > > > Hello all > > > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > > goes from green to yellow (my cluster health is below, and at the moment > > > > all is good) > > > > > > > > "cluster\_name" : "elasticsearch", > > > > "status" : "green", > > > > "timed\_out" : false, > > > > "number\_of\_nodes" : 2, > > > > "number\_of\_data\_nodes" : 2, > > > > "active\_primary\_shards" : 11, > > > > "active\_shards" : 22, > > > > "relocating\_shards" : 0, > > > > "initializing\_shards" : 0, > > > > "unassigned\_shards" : 0 > > > > } > > > > > > > > I have read what the different status colours mean, but I cant find > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > etc. > > > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > > > ive got monitoring on my cluster to alert me when its not green, and I > > > > can go and restart the slave server, then it goes back to green.. but still > > > > this does not identify the root cause as to why this happens? > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > Cheers > > > > > > -- > > > You received this message because you are subscribed to a topic in the > > > Google Groups "elasticsearch" group. > > > To unsubscribe from this topic, visit > > > [https://groups.google.com/d/topic/elasticsearch/m5QNsmh9Mek/unsubscribe](https://groups.google.com/d/topic/elasticsearch/m5QNsmh9Mek/unsubscribe). > > > To unsubscribe from this group and all its topics, send an email to > > > [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com) > > > [https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/d05db214-f7f0-4721-81de-609648625977%40googlegroups.com?utm_medium=email&utm_source=footer) > > > . > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CANRN3tb3wESb3UA46Tas%2B2WskUopMo0mwY8teLB9hwWm-vUuwA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CANRN3tb3wESb3UA46Tas%2B2WskUopMo0mwY8teLB9hwWm-vUuwA%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 1:16pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/11 "2015-03-03T13:16:21Z")
yeah that will work, so long as the windows server has the latest .net framework on then all it will do is simply make a http request to the URL that you specify when calling the app, it will then get the JSON response from your Elastic Custer URL, and then if NOT green, it will email you on the address you specify from the smtp host you specify 🙂 Want to give it a go? ill need to tweak the app my end... and if you have visual studio 2010, i can give you the sourcecode / project so if you wished you could alter the program further (and also check the code out to see that it is not doing anything malicious) 🙂 On Tuesday, 3 March 2015 13:09:25 UTC, Anil Karaka wrote: > My Elasticsearch cluster is is on Ubuntu.. > > but I also have a small windows instance inside the VPC, so that I can rdp > into it to use plugins like kopf, bigdesk etc.. > > Basically I have a windows instance that can query my cluster.. Is that > enough to use your solution? > > Thanks a bunch 🙂 > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > > > Hello > > > > Stays in Green status: for about a couple of weeks > > Goes to Yellow Status: until I reboot the node that is basically > > considered the slave machine. > > > > Rivers: 1 > > Index/tables: 2 > > one table is the Kibana thing I installed to try it out. > > the other table is the main products table that has about 1.8 million > > records. > > > > - main master update done on it every day at 8am > > - smaller stock level updates done every 15 minutes only for stock levels > > that have changed since 15 mins ago. > > > > Do you want me to see if I can adapt my app so that it will take > > parameters so you can use it on your system? > > needs to be on a windows machine though 🙂 > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > How long does your cluster stay in that state? > > > > > > and how many indexes in your cluster? > > > > > > replica/shard count etc etc? > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > > > > > Hello all > > > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > > goes from green to yellow (my cluster health is below, and at the moment > > > > all is good) > > > > > > > > "cluster\_name" : "elasticsearch", > > > > "status" : "green", > > > > "timed\_out" : false, > > > > "number\_of\_nodes" : 2, > > > > "number\_of\_data\_nodes" : 2, > > > > "active\_primary\_shards" : 11, > > > > "active\_shards" : 22, > > > > "relocating\_shards" : 0, > > > > "initializing\_shards" : 0, > > > > "unassigned\_shards" : 0 > > > > } > > > > > > > > I have read what the different status colours mean, but I cant find > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > etc. > > > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > > > ive got monitoring on my cluster to alert me when its not green, and I > > > > can go and restart the slave server, then it goes back to green.. but still > > > > this does not identify the root cause as to why this happens? > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/f02c6470-a56a-458c-bc49-7ed46d41f1af%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/f02c6470-a56a-458c-bc49-7ed46d41f1af%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 1:29pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/12 "2015-03-03T13:29:15Z")
I think you I should write a simple python script myself.. I don't think I will be installing visual studio in that windows machine.. Thanks for your help though 🙂 On Tuesday, March 3, 2015 at 6:46:21 PM UTC+5:30, Steven Williams wrote: > yeah that will work, so long as the windows server has the latest .net > framework on > > then all it will do is simply make a http request to the URL that you > specify when calling the app, > > it will then get the JSON response from your Elastic Custer URL, and then > if NOT green, it will email you on the address you specify from the smtp > host you specify 🙂 > > Want to give it a go? > > ill need to tweak the app my end... and if you have visual studio 2010, i > can give you the sourcecode / project so if you wished you could alter the > program further (and also check the code out to see that it is not doing > anything malicious) 🙂 > > On Tuesday, 3 March 2015 13:09:25 UTC, Anil Karaka wrote: > > > My Elasticsearch cluster is is on Ubuntu.. > > > > but I also have a small windows instance inside the VPC, so that I can > > rdp into it to use plugins like kopf, bigdesk etc.. > > > > Basically I have a windows instance that can query my cluster.. Is that > > enough to use your solution? > > > > Thanks a bunch 🙂 > > > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > > > > > Hello > > > > > > Stays in Green status: for about a couple of weeks > > > Goes to Yellow Status: until I reboot the node that is basically > > > considered the slave machine. > > > > > > Rivers: 1 > > > Index/tables: 2 > > > one table is the Kibana thing I installed to try it out. > > > the other table is the main products table that has about 1.8 million > > > records. > > > > > > - main master update done on it every day at 8am > > > - smaller stock level updates done every 15 minutes only for stock > > > levels that have changed since 15 mins ago. > > > > > > Do you want me to see if I can adapt my app so that it will take > > > parameters so you can use it on your system? > > > needs to be on a windows machine though 🙂 > > > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > > > How long does your cluster stay in that state? > > > > > > > > and how many indexes in your cluster? > > > > > > > > replica/shard count etc etc? > > > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams wrote: > > > > > > > > > Hello all > > > > > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > > > goes from green to yellow (my cluster health is below, and at the moment > > > > > all is good) > > > > > > > > > > "cluster\_name" : "elasticsearch", > > > > > "status" : "green", > > > > > "timed\_out" : false, > > > > > "number\_of\_nodes" : 2, > > > > > "number\_of\_data\_nodes" : 2, > > > > > "active\_primary\_shards" : 11, > > > > > "active\_shards" : 22, > > > > > "relocating\_shards" : 0, > > > > > "initializing\_shards" : 0, > > > > > "unassigned\_shards" : 0 > > > > > } > > > > > > > > > > I have read what the different status colours mean, but I cant find > > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > > etc. > > > > > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > > > > > ive got monitoring on my cluster to alert me when its not green, and I > > > > > can go and restart the slave server, then it goes back to green.. but still > > > > > this does not identify the root cause as to why this happens? > > > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/5084541f-0e4d-41ea-86b5-123240059353%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5084541f-0e4d-41ea-86b5-123240059353%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 1:34pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/13 "2015-03-03T13:34:15Z")
your machine does not need visual studio on 🙂 i just said that in case you wanted to look at the code for any reason, and have the ability to alter it. the app will still work, so long as it has the latest dotnet framework and also can see the elastic server. do you still want me to adapt my app for you to try on your server? On Tuesday, 3 March 2015 13:29:15 UTC, Anil Karaka wrote: > I think you I should write a simple python script myself.. > > I don't think I will be installing visual studio in that windows machine.. > > Thanks for your help though 🙂 > > On Tuesday, March 3, 2015 at 6:46:21 PM UTC+5:30, Steven Williams wrote: > > > yeah that will work, so long as the windows server has the latest .net > > framework on > > > > then all it will do is simply make a http request to the URL that you > > specify when calling the app, > > > > it will then get the JSON response from your Elastic Custer URL, and then > > if NOT green, it will email you on the address you specify from the smtp > > host you specify 🙂 > > > > Want to give it a go? > > > > ill need to tweak the app my end... and if you have visual studio 2010, > > i can give you the sourcecode / project so if you wished you could alter > > the program further (and also check the code out to see that it is not > > doing anything malicious) 🙂 > > > > On Tuesday, 3 March 2015 13:09:25 UTC, Anil Karaka wrote: > > > > > My Elasticsearch cluster is is on Ubuntu.. > > > > > > but I also have a small windows instance inside the VPC, so that I can > > > rdp into it to use plugins like kopf, bigdesk etc.. > > > > > > Basically I have a windows instance that can query my cluster.. Is that > > > enough to use your solution? > > > > > > Thanks a bunch 🙂 > > > > > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > > > > > > > Hello > > > > > > > > Stays in Green status: for about a couple of weeks > > > > Goes to Yellow Status: until I reboot the node that is basically > > > > considered the slave machine. > > > > > > > > Rivers: 1 > > > > Index/tables: 2 > > > > one table is the Kibana thing I installed to try it out. > > > > the other table is the main products table that has about 1.8 million > > > > records. > > > > > > > > - main master update done on it every day at 8am > > > > - smaller stock level updates done every 15 minutes only for stock > > > > levels that have changed since 15 mins ago. > > > > > > > > Do you want me to see if I can adapt my app so that it will take > > > > parameters so you can use it on your system? > > > > needs to be on a windows machine though 🙂 > > > > > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > > > > > How long does your cluster stay in that state? > > > > > > > > > > and how many indexes in your cluster? > > > > > > > > > > replica/shard count etc etc? > > > > > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams > > > > > wrote: > > > > > > > > > > > Hello all > > > > > > > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > > > > goes from green to yellow (my cluster health is below, and at the moment > > > > > > all is good) > > > > > > > > > > > > "cluster\_name" : "elasticsearch", > > > > > > "status" : "green", > > > > > > "timed\_out" : false, > > > > > > "number\_of\_nodes" : 2, > > > > > > "number\_of\_data\_nodes" : 2, > > > > > > "active\_primary\_shards" : 11, > > > > > > "active\_shards" : 22, > > > > > > "relocating\_shards" : 0, > > > > > > "initializing\_shards" : 0, > > > > > > "unassigned\_shards" : 0 > > > > > > } > > > > > > > > > > > > I have read what the different status colours mean, but I cant find > > > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > > > etc. > > > > > > > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > > > > > > > ive got monitoring on my cluster to alert me when its not green, and > > > > > > I can go and restart the slave server, then it goes back to green.. but > > > > > > still this does not identify the root cause as to why this happens? > > > > > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/ab83dd45-9fc5-4a70-bf92-2625b2623376%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/ab83dd45-9fc5-4a70-bf92-2625b2623376%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 1:51pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/14 "2015-03-03T13:51:49Z")
Thanks.. will give it a try.. fileds to specify my master node. and email address..? On Tuesday, March 3, 2015 at 7:04:15 PM UTC+5:30, Steven Williams wrote: > your machine does not need visual studio on 🙂 > > i just said that in case you wanted to look at the code for any reason, > and have the ability to alter it. > > the app will still work, so long as it has the latest dotnet framework > and also can see the elastic server. > > do you still want me to adapt my app for you to try on your server? > > On Tuesday, 3 March 2015 13:29:15 UTC, Anil Karaka wrote: > > > I think you I should write a simple python script myself.. > > > > I don't think I will be installing visual studio in that windows machine.. > > > > Thanks for your help though 🙂 > > > > On Tuesday, March 3, 2015 at 6:46:21 PM UTC+5:30, Steven Williams wrote: > > > > > yeah that will work, so long as the windows server has the latest .net > > > framework on > > > > > > then all it will do is simply make a http request to the URL that you > > > specify when calling the app, > > > > > > it will then get the JSON response from your Elastic Custer URL, and > > > then if NOT green, it will email you on the address you specify from the > > > smtp host you specify 🙂 > > > > > > Want to give it a go? > > > > > > ill need to tweak the app my end... and if you have visual studio 2010, > > > i can give you the sourcecode / project so if you wished you could alter > > > the program further (and also check the code out to see that it is not > > > doing anything malicious) 🙂 > > > > > > On Tuesday, 3 March 2015 13:09:25 UTC, Anil Karaka wrote: > > > > > > > My Elasticsearch cluster is is on Ubuntu.. > > > > > > > > but I also have a small windows instance inside the VPC, so that I can > > > > rdp into it to use plugins like kopf, bigdesk etc.. > > > > > > > > Basically I have a windows instance that can query my cluster.. Is that > > > > enough to use your solution? > > > > > > > > Thanks a bunch 🙂 > > > > > > > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams wrote: > > > > > > > > > Hello > > > > > > > > > > Stays in Green status: for about a couple of weeks > > > > > Goes to Yellow Status: until I reboot the node that is basically > > > > > considered the slave machine. > > > > > > > > > > Rivers: 1 > > > > > Index/tables: 2 > > > > > one table is the Kibana thing I installed to try it out. > > > > > the other table is the main products table that has about 1.8 million > > > > > records. > > > > > > > > > > - main master update done on it every day at 8am > > > > > - smaller stock level updates done every 15 minutes only for stock > > > > > levels that have changed since 15 mins ago. > > > > > > > > > > Do you want me to see if I can adapt my app so that it will take > > > > > parameters so you can use it on your system? > > > > > needs to be on a windows machine though 🙂 > > > > > > > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > > > > > > > How long does your cluster stay in that state? > > > > > > > > > > > > and how many indexes in your cluster? > > > > > > > > > > > > replica/shard count etc etc? > > > > > > > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams > > > > > > wrote: > > > > > > > > > > > > > Hello all > > > > > > > > > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > > > > > goes from green to yellow (my cluster health is below, and at the moment > > > > > > > all is good) > > > > > > > > > > > > > > "cluster\_name" : "elasticsearch", > > > > > > > "status" : "green", > > > > > > > "timed\_out" : false, > > > > > > > "number\_of\_nodes" : 2, > > > > > > > "number\_of\_data\_nodes" : 2, > > > > > > > "active\_primary\_shards" : 11, > > > > > > > "active\_shards" : 22, > > > > > > > "relocating\_shards" : 0, > > > > > > > "initializing\_shards" : 0, > > > > > > > "unassigned\_shards" : 0 > > > > > > > } > > > > > > > > > > > > > > I have read what the different status colours mean, but I cant find > > > > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > > > > etc. > > > > > > > > > > > > > > Are the any main reasons that would give cause to red / yellow > > > > > > > health? > > > > > > > > > > > > > > ive got monitoring on my cluster to alert me when its not green, and > > > > > > > I can go and restart the slave server, then it goes back to green.. but > > > > > > > still this does not identify the root cause as to why this happens? > > > > > > > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/f93e0c5a-6d6c-42c8-98ae-02bdc3dfc737%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/f93e0c5a-6d6c-42c8-98ae-02bdc3dfc737%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 2:00pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/15 "2015-03-03T14:00:29Z")
Hello so, just altered the app on my server, and it works ok. when you set up the scheduled task, or even the shortcut to the exe to try it.. the parameters need to be separated by space.. so example ElasticHealthMonitor.exe [http://192.168.2.2:9200/\_cluster/health?pretty=true](http://192.168.2.2:9200/_cluster/health?pretty=true) [anil@karaka.com](mailto:anil@karaka.com) [mail.yourmailserver.com](http://mail.yourmailserver.com) or the IP address of your mail server, whichever works. then you will get an email come back to you if all is ok, and if all is not ok.. I can zip up the exe and send to you via your gmail account - that ok? On Tuesday, 3 March 2015 13:51:49 UTC, Anil Karaka wrote: > Thanks.. will give it a try.. > > fileds to specify my master node. and email address..? > > On Tuesday, March 3, 2015 at 7:04:15 PM UTC+5:30, Steven Williams wrote: > > > your machine does not need visual studio on 🙂 > > > > i just said that in case you wanted to look at the code for any reason, > > and have the ability to alter it. > > > > the app will still work, so long as it has the latest dotnet framework > > and also can see the elastic server. > > > > do you still want me to adapt my app for you to try on your server? > > > > On Tuesday, 3 March 2015 13:29:15 UTC, Anil Karaka wrote: > > > > > I think you I should write a simple python script myself.. > > > > > > I don't think I will be installing visual studio in that windows > > > machine.. > > > > > > Thanks for your help though 🙂 > > > > > > On Tuesday, March 3, 2015 at 6:46:21 PM UTC+5:30, Steven Williams wrote: > > > > > > > yeah that will work, so long as the windows server has the latest .net > > > > framework on > > > > > > > > then all it will do is simply make a http request to the URL that you > > > > specify when calling the app, > > > > > > > > it will then get the JSON response from your Elastic Custer URL, and > > > > then if NOT green, it will email you on the address you specify from the > > > > smtp host you specify 🙂 > > > > > > > > Want to give it a go? > > > > > > > > ill need to tweak the app my end... and if you have visual studio > > > > 2010, i can give you the sourcecode / project so if you wished you could > > > > alter the program further (and also check the code out to see that it is > > > > not doing anything malicious) 🙂 > > > > > > > > On Tuesday, 3 March 2015 13:09:25 UTC, Anil Karaka wrote: > > > > > > > > > My Elasticsearch cluster is is on Ubuntu.. > > > > > > > > > > but I also have a small windows instance inside the VPC, so that I can > > > > > rdp into it to use plugins like kopf, bigdesk etc.. > > > > > > > > > > Basically I have a windows instance that can query my cluster.. Is > > > > > that enough to use your solution? > > > > > > > > > > Thanks a bunch 🙂 > > > > > > > > > > On Tuesday, March 3, 2015 at 6:31:11 PM UTC+5:30, Steven Williams > > > > > wrote: > > > > > > > > > > > Hello > > > > > > > > > > > > Stays in Green status: for about a couple of weeks > > > > > > Goes to Yellow Status: until I reboot the node that is basically > > > > > > considered the slave machine. > > > > > > > > > > > > Rivers: 1 > > > > > > Index/tables: 2 > > > > > > one table is the Kibana thing I installed to try it out. > > > > > > the other table is the main products table that has about 1.8 million > > > > > > records. > > > > > > > > > > > > - main master update done on it every day at 8am > > > > > > - smaller stock level updates done every 15 minutes only for stock > > > > > > levels that have changed since 15 mins ago. > > > > > > > > > > > > Do you want me to see if I can adapt my app so that it will take > > > > > > parameters so you can use it on your system? > > > > > > needs to be on a windows machine though 🙂 > > > > > > > > > > > > On Tuesday, 3 March 2015 12:53:58 UTC, Anil Karaka wrote: > > > > > > > > > > > > > How long does your cluster stay in that state? > > > > > > > > > > > > > > and how many indexes in your cluster? > > > > > > > > > > > > > > replica/shard count etc etc? > > > > > > > > > > > > > > On Tuesday, March 3, 2015 at 4:19:13 PM UTC+5:30, Steven Williams > > > > > > > wrote: > > > > > > > > > > > > > > > Hello all > > > > > > > > > > > > > > > > I have 2 nodes (two different machines) and on occasion the > > > > > > > > cluster goes from green to yellow (my cluster health is below, and at the > > > > > > > > moment all is good) > > > > > > > > > > > > > > > > "cluster\_name" : "elasticsearch", > > > > > > > > "status" : "green", > > > > > > > > "timed\_out" : false, > > > > > > > > "number\_of\_nodes" : 2, > > > > > > > > "number\_of\_data\_nodes" : 2, > > > > > > > > "active\_primary\_shards" : 11, > > > > > > > > "active\_shards" : 22, > > > > > > > > "relocating\_shards" : 0, > > > > > > > > "initializing\_shards" : 0, > > > > > > > > "unassigned\_shards" : 0 > > > > > > > > } > > > > > > > > > > > > > > > > I have read what the different status colours mean, but I cant find > > > > > > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > > > > > > etc. > > > > > > > > > > > > > > > > Are the any main reasons that would give cause to red / yellow > > > > > > > > health? > > > > > > > > > > > > > > > > ive got monitoring on my cluster to alert me when its not green, > > > > > > > > and I can go and restart the slave server, then it goes back to green.. but > > > > > > > > still this does not identify the root cause as to why this happens? > > > > > > > > > > > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > > > > > > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. 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**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 2:05pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/16 "2015-03-03T14:05:55Z")
just sent an email to your gmail account can you confirm you have received it On Tuesday, 3 March 2015 10:49:13 UTC, Steven Williams wrote: > Hello all > > I have 2 nodes (two different machines) and on occasion the cluster goes > from green to yellow (my cluster health is below, and at the moment all is > good) > > "cluster\_name" : "elasticsearch", > "status" : "green", > "timed\_out" : false, > "number\_of\_nodes" : 2, > "number\_of\_data\_nodes" : 2, > "active\_primary\_shards" : 11, > "active\_shards" : 22, > "relocating\_shards" : 0, > "initializing\_shards" : 0, > "unassigned\_shards" : 0 > } > > I have read what the different status colours mean, but I cant find > anywhere that says WHY these things happen i.e. network issue, cpu load etc > etc. > > Are the any main reasons that would give cause to red / yellow health? > > ive got monitoring on my cluster to alert me when its not green, and I can > go and restart the slave server, then it goes back to green.. but still > this does not identify the root cause as to why this happens? > > Any comments would be greatly appreciated 🙂 > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e5861f79-f0fd-4c08-90d0-5b8d50271b30%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e5861f79-f0fd-4c08-90d0-5b8d50271b30%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Anil\_Karaka](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@Anil\_Karaka](https://discuss.elastic.co/u/Anil_Karaka)\ **Post date:** [March 3, 2015, 2:09pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/17 "2015-03-03T14:09:59Z")
Yep I got your email.. On Tuesday, March 3, 2015 at 7:35:56 PM UTC+5:30, Steven Williams wrote: > just sent an email to your gmail account can you confirm you have > received it > > On Tuesday, 3 March 2015 10:49:13 UTC, Steven Williams wrote: > > > Hello all > > > > I have 2 nodes (two different machines) and on occasion the cluster goes > > from green to yellow (my cluster health is below, and at the moment all is > > good) > > > > "cluster\_name" : "elasticsearch", > > "status" : "green", > > "timed\_out" : false, > > "number\_of\_nodes" : 2, > > "number\_of\_data\_nodes" : 2, > > "active\_primary\_shards" : 11, > > "active\_shards" : 22, > > "relocating\_shards" : 0, > > "initializing\_shards" : 0, > > "unassigned\_shards" : 0 > > } > > > > I have read what the different status colours mean, but I cant find > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > etc. > > > > Are the any main reasons that would give cause to red / yellow health? > > > > ive got monitoring on my cluster to alert me when its not green, and I > > can go and restart the slave server, then it goes back to green.. but still > > this does not identify the root cause as to why this happens? > > > > Any comments would be greatly appreciated 🙂 > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/8714358b-cfe3-4755-bc19-8d42fdde9697%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/8714358b-cfe3-4755-bc19-8d42fdde9697%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Steven\_Williams](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Steven\_Williams](https://discuss.elastic.co/u/Steven_Williams)\ **Post date:** [March 3, 2015, 2:20pm UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/18 "2015-03-03T14:20:39Z")
ive resent it - as googlemail didnt like the fact an exe was in a zip file. so renamed the exe to .\_exe 🙂 so just rename back to .exe etc On Tuesday, 3 March 2015 14:10:00 UTC, Anil Karaka wrote: > Yep I got your email.. > > On Tuesday, March 3, 2015 at 7:35:56 PM UTC+5:30, Steven Williams wrote: > > > just sent an email to your gmail account can you confirm you have > > received it > > > > On Tuesday, 3 March 2015 10:49:13 UTC, Steven Williams wrote: > > > > > Hello all > > > > > > I have 2 nodes (two different machines) and on occasion the cluster > > > goes from green to yellow (my cluster health is below, and at the moment > > > all is good) > > > > > > "cluster\_name" : "elasticsearch", > > > "status" : "green", > > > "timed\_out" : false, > > > "number\_of\_nodes" : 2, > > > "number\_of\_data\_nodes" : 2, > > > "active\_primary\_shards" : 11, > > > "active\_shards" : 22, > > > "relocating\_shards" : 0, > > > "initializing\_shards" : 0, > > > "unassigned\_shards" : 0 > > > } > > > > > > I have read what the different status colours mean, but I cant find > > > anywhere that says WHY these things happen i.e. network issue, cpu load etc > > > etc. > > > > > > Are the any main reasons that would give cause to red / yellow health? > > > > > > ive got monitoring on my cluster to alert me when its not green, and I > > > can go and restart the slave server, then it goes back to green.. but still > > > this does not identify the root cause as to why this happens? > > > > > > Any comments would be greatly appreciated 🙂 > > > > > > Cheers -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/9f68602d-ac26-4cf3-b4d6-f7fd487ea816%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/9f68602d-ac26-4cf3-b4d6-f7fd487ea816%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:28am UTC](https://discuss.elastic.co/t/what-actually-causes-red-yellow-cluster-health/22485/19 "2017-07-06T00:28:53Z")