# Using ES-head plugin, need help with terminologies (Screenshot attached) **URL:** \ **Category:** Elasticsearch\ **Created:** [April 24, 2014, 10:19am UTC](https://discuss.elastic.co/t/using-es-head-plugin-need-help-with-terminologies-screenshot-attached/17171 "2014-04-24T10:19:04Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Kaustubh\_Padegaonkar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kaustubh_padegaonkar/32/1622_2.png) [@Kaustubh\_Padegaonkar](https://discuss.elastic.co/u/Kaustubh_Padegaonkar)\ **Post date:** [April 24, 2014, 10:19am UTC](https://discuss.elastic.co/t/using-es-head-plugin-need-help-with-terminologies-screenshot-attached/17171/1 "2014-04-24T10:19:04Z")
Hello Group, Thank you for having me. I used the Elasticsearch-head plugin on the suggestion of a post in this group. I have a broken ES cluster. This is the screenshot of my cluster: [http://i.imgur.com/hIJJoSr.png](http://i.imgur.com/hIJJoSr.png). The boxes in gray show up as unassigned. The ones in green belong to a cluster. I have the following questions that I was hoping you guys could help me with: 1. Why is there more than one shard with the same name? (See graylog2\_71) 2. Why is one primary, the other is not? 3. How can I assign them to a cluster that is currently up? 4. Is there anyway I can trace why the index was unassigned in the first place? Thank you. -- 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/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![vineeth\_mohan\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vineeth_mohan_2/32/747_2.png) [@vineeth\_mohan\_2](https://discuss.elastic.co/u/vineeth_mohan_2)\ **Post date:** [April 24, 2014, 6:27pm UTC](https://discuss.elastic.co/t/using-es-head-plugin-need-help-with-terminologies-screenshot-attached/17171/2 "2014-04-24T18:27:27Z")
Please find the answers inline On Thu, Apr 24, 2014 at 3:49 PM, Kaustubh Padegaonkar \<[thetuxracer@gmail.com](mailto:thetuxracer@gmail.com) > wrote: > Hello Group, > > Thank you for having me. > > I used the Elasticsearch-head plugin on the suggestion of a post in this > group. I have a broken ES cluster. > > This is the screenshot of my cluster: [http://i.imgur.com/hIJJoSr.png](http://i.imgur.com/hIJJoSr.png). The > boxes in gray show up as unassigned. The ones in green belong to a cluster. > > I have the following questions that I was hoping you guys could help me > with: > > 1. Why is there more than one shard with the same name? (See graylog2\_71) graylog2\_71 is an index and not a shard. As this is a distributed system , it will have multiple shards for each index distributed over many machines > 1. Why is one primary, the other is not? The primary one is responsible for the aggregation of results from all shards for each query. Any one has to be primary. > 1. How can I assign them to a cluster that is currently up? I feel most of the machines in your cluster are not up > 1. Is there anyway I can trace why the index was unassigned in the first > place? Issue here is , the machine with the shard and its replica , are not present in the cluster. Due to this ES cant bring back the data. > Thank you. > > -- > 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/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%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/CAGdPd5m%2BTGioT5y1d-YESos382jyp-8aH\_%3DL0nXaswDs0%3Der%3DQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAGdPd5m%2BTGioT5y1d-YESos382jyp-8aH_%3DL0nXaswDs0%3Der%3DQ%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Kaustubh\_Padegaonkar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kaustubh_padegaonkar/32/1622_2.png) [@Kaustubh\_Padegaonkar](https://discuss.elastic.co/u/Kaustubh_Padegaonkar)\ **Post date:** [April 25, 2014, 7:01am UTC](https://discuss.elastic.co/t/using-es-head-plugin-need-help-with-terminologies-screenshot-attached/17171/3 "2014-04-25T07:01:09Z")
Hi Vineeth, Thank you for your time. I have some followup questions inline. TIA. On Thursday, April 24, 2014 11:57:27 PM UTC+5:30, vineeth mohan wrote: > Please find the answers inline > > On Thu, Apr 24, 2014 at 3:49 PM, Kaustubh Padegaonkar \< > [thetuxracer@gmail.com](mailto:thetuxracer@gmail.com) \\> wrote: > > > Hello Group, > > > > Thank you for having me. > > > > I used the Elasticsearch-head plugin on the suggestion of a post in this > > group. I have a broken ES cluster. > > > > This is the screenshot of my cluster: [http://i.imgur.com/hIJJoSr.png](http://i.imgur.com/hIJJoSr.png). > > The boxes in gray show up as unassigned. The ones in green belong to a > > cluster. > > > > I have the following questions that I was hoping you guys could help me > > with: > > > > 1. Why is there more than one shard with the same name? (See graylog2\_71) > > graylog2\_71 is an index and not a shard. As this is a distributed system > , it will have multiple shards for each index distributed over many machines I meant to say that there are duplicate shards named 0,1,2,3,4 inside index graylog2\_71. 1. Why is one primary, the other is not? > > > > The primary one is responsible for the aggregation of results from all > shards for each query. Any one has to be primary. The shards with thick border are primary, and there exists 1 more shard with the same name. 1. How can I assign them to a cluster that is currently up? > > > > I feel most of the machines in your cluster are not up There is just one machine with ES in my cluster. I ran a bash script that used the open/close api to open closed indexes and deleted them. I think thats what caused the inconsistency. > 1. Is there anyway I can trace why the index was unassigned in the first > > > place? > > Issue here is , the machine with the shard and its replica , are not > present in the cluster. Due to this ES cant bring back the data. Can I not copy/rename the folders or run (any?) ES scripts to recover them? Thank you. > > Thank you. > > > > -- > > 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/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/015fd035-9cbe-41e5-88e9-a12479af3c15%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/53bd9eb2-63e6-422e-8e83-8ac3d2b72a42%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/53bd9eb2-63e6-422e-8e83-8ac3d2b72a42%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, 1:33am UTC](https://discuss.elastic.co/t/using-es-head-plugin-need-help-with-terminologies-screenshot-attached/17171/4 "2017-07-06T01:33:36Z")