# Adding new nodes to cluster with unicast without restarting **URL:** \ **Category:** Elasticsearch\ **Created:** [March 13, 2014, 1:38pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351 "2014-03-13T13:38:27Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Hari\_Prasad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hari_prasad/32/56784_2.png) [@Hari\_Prasad](https://discuss.elastic.co/u/Hari_Prasad)\ **Post date:** [March 13, 2014, 1:38pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/1 "2014-03-13T13:38:27Z")
Hi I am having an elasticsearch cluster. I am using the unicast to discover nodes. Can I add nodes to list dynamically without restarting the cluster? I tried to do this with the prepareUpdateSettings but i got "ignoring transient setting [discovery.zen.ping.unicast.hosts], not dynamically updateable". Is there any other way to do this without restarting the cluster. I am not going for multicast because i don't want rouge nodes to join my cluster. I can go for it if i can, in anyway, limit what all nodes join the cluster, other than the cluster name. Are there any ways to do this. Thanks Hari -- 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 13, 2014, 1:47pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/2 "2014-03-13T13:47:19Z")
Yes. Just launch the new node and set its unicast values to other running nodes. It will connect to the cluster and the cluster will add him as a new node. You don't have to modify existing settings, although you should do it to have updated settings in case of restart. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 13 mars 2014 à 14:38, Hari Prasad [iamhari1234@gmail.com](mailto:iamhari1234@gmail.com) a écrit : Hi I am having an elasticsearch cluster. I am using the unicast to discover nodes. Can I add nodes to list dynamically without restarting the cluster? I tried to do this with the prepareUpdateSettings but i got "ignoring transient setting [discovery.zen.ping.unicast.hosts], not dynamically updateable". Is there any other way to do this without restarting the cluster. I am not going for multicast because i don't want rouge nodes to join my cluster. I can go for it if i can, in anyway, limit what all nodes join the cluster, other than the cluster name. Are there any ways to do this. ## Thanks Hari 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com). 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/01537FBE-A376-4FBA-BD16-5BF0D5476EAC%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/01537FBE-A376-4FBA-BD16-5BF0D5476EAC%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Hari\_Prasad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hari_prasad/32/56784_2.png) [@Hari\_Prasad](https://discuss.elastic.co/u/Hari_Prasad)\ **Post date:** [March 13, 2014, 2:00pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/3 "2014-03-13T14:00:04Z")
Is this the case the even if discovery.zen.ping.multicast.enabled is false? On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > Yes. Just launch the new node and set its unicast values to other running > nodes. > It will connect to the cluster and the cluster will add him as a new node. > > You don't have to modify existing settings, although you should do it to > have updated settings in case of restart. > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 13 mars 2014 à 14:38, Hari Prasad \<[iamha...@gmail.com](mailto:iamha...@gmail.com) \\> a > écrit : > > Hi > I am having an elasticsearch cluster. I am using the unicast to discover > nodes. Can I add nodes to list dynamically without restarting the cluster? > I tried to do this with the prepareUpdateSettings but i got "ignoring > transient setting [discovery.zen.ping.unicast.hosts], not dynamically > updateable". > Is there any other way to do this without restarting the cluster. > > I am not going for multicast because i don't want rouge nodes to join my > cluster. I can go for it if i can, in anyway, limit what all nodes join the > cluster, other than the cluster name. > Are there any ways to do this. > > Thanks > Hari > > -- > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%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/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 13, 2014, 2:05pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/4 "2014-03-13T14:05:52Z")
yes -- David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com) @dadoonet | @elasticsearchfr Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamhari1234@gmail.com](mailto:iamhari1234@gmail.com)) a écrit: Is this the case the even if discovery.zen.ping.multicast.enabled is false? On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: Yes. Just launch the new node and set its unicast values to other running nodes. It will connect to the cluster and the cluster will add him as a new node. You don't have to modify existing settings, although you should do it to have updated settings in case of restart. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : Hi I am having an elasticsearch cluster. I am using the unicast to discover nodes. Can I add nodes to list dynamically without restarting the cluster? I tried to do this with the prepareUpdateSettings but i got "ignoring transient setting [discovery.zen.ping.unicast.hosts], not dynamically updateable". Is there any other way to do this without restarting the cluster. I am not going for multicast because i don't want rouge nodes to join my cluster. I can go for it if i can, in anyway, limit what all nodes join the cluster, other than the cluster name. Are there any ways to do this. ## Thanks Hari ## 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com). 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/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com). 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/etPan.5321bb40.140e0f76.158d%40MacBook-Air-de-David.local](https://groups.google.com/d/msgid/elasticsearch/etPan.5321bb40.140e0f76.158d%40MacBook-Air-de-David.local). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Hari\_Prasad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hari_prasad/32/56784_2.png) [@Hari\_Prasad](https://discuss.elastic.co/u/Hari_Prasad)\ **Post date:** [March 13, 2014, 2:16pm UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/5 "2014-03-13T14:16:08Z")
Ok Thank you 🙂 On Thursday, 13 March 2014 19:35:52 UTC+5:30, David Pilato wrote: > yes > > -- > _David Pilato_ | _Technical Advocate_ | _[Elasticsearch.com](http://Elasticsearch.com)_ > @dadoonet [https://twitter.com/dadoonet](https://twitter.com/dadoonet) | @elasticsearchfr[https://twitter.com/elasticsearchfr](https://twitter.com/elasticsearchfr) > > Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamha...@gmail.com](mailto:iamha...@gmail.com) \) > a écrit: > > Is this the case the even if discovery.zen.ping.multicast.enabled is false? > > On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > > > Yes. Just launch the new node and set its unicast values to other > > running nodes. > > It will connect to the cluster and the cluster will add him as a new node. > > > > You don't have to modify existing settings, although you should do it to > > have updated settings in case of restart. > > > > -- > > David 😉 > > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > > Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > > > Hi > > I am having an elasticsearch cluster. I am using the unicast to discover > > nodes. Can I add nodes to list dynamically without restarting the cluster? > > I tried to do this with the prepareUpdateSettings but i got "ignoring > > transient setting [discovery.zen.ping.unicast.hosts], not dynamically > > updateable". > > Is there any other way to do this without restarting the cluster. > > > > I am not going for multicast because i don't want rouge nodes to join my > > cluster. I can go for it if i can, in anyway, limit what all nodes join the > > cluster, other than the cluster name. > > Are there any ways to do this. > > > > ## Thanks Hari > > > > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%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/e0b97af5-eb5c-48c2-b9ca-783f50aab8fb%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e0b97af5-eb5c-48c2-b9ca-783f50aab8fb%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Hari\_Prasad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hari_prasad/32/56784_2.png) [@Hari\_Prasad](https://discuss.elastic.co/u/Hari_Prasad)\ **Post date:** [March 14, 2014, 6:11am UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/6 "2014-03-14T06:11:08Z")
Hi Can you please explain the following I first started one node with only its ip in unicast host list and multicast discovery false. The cluster started with one node. Then I started another node with its unicast host value of node one. This also joined the cluster. This is in sync with what you said. But if this is the case the what the use for setting the multicast as false and setting the unicast host list. Cant any node join the cluster just like that by setting the unicast to any node in the cluster. how to limit this. On Thursday, 13 March 2014 19:46:08 UTC+5:30, Hari Prasad wrote: > Ok Thank you 🙂 > > On Thursday, 13 March 2014 19:35:52 UTC+5:30, David Pilato wrote: > > > yes > > > > -- > > _David Pilato_ | _Technical Advocate_ | _[Elasticsearch.com](http://Elasticsearch.com)_ > > @dadoonet [https://twitter.com/dadoonet](https://twitter.com/dadoonet) | @elasticsearchfr[https://twitter.com/elasticsearchfr](https://twitter.com/elasticsearchfr) > > > > Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamha...@gmail.com](mailto:iamha...@gmail.com)) a écrit: > > > > Is this the case the even if discovery.zen.ping.multicast.enabled is > > false? > > > > On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > > > > > Yes. Just launch the new node and set its unicast values to other > > > running nodes. > > > It will connect to the cluster and the cluster will add him as a new > > > node. > > > > > > You don't have to modify existing settings, although you should do it to > > > have updated settings in case of restart. > > > > > > -- > > > David 😉 > > > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > > > > Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > > > > > Hi > > > I am having an elasticsearch cluster. I am using the unicast to discover > > > nodes. Can I add nodes to list dynamically without restarting the cluster? > > > I tried to do this with the prepareUpdateSettings but i got "ignoring > > > transient setting [discovery.zen.ping.unicast.hosts], not dynamically > > > updateable". > > > Is there any other way to do this without restarting the cluster. > > > > > > I am not going for multicast because i don't want rouge nodes to join my > > > cluster. I can go for it if i can, in anyway, limit what all nodes join the > > > cluster, other than the cluster name. > > > Are there any ways to do this. > > > > > > ## Thanks Hari > > > > > > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%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/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 14, 2014, 6:52am UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/7 "2014-03-14T06:52:52Z")
If the cluster name is different, the new node won't join the cluster. Also, if you have a security concern, you should restrict network access to your nodes on a transport layer (9300). -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 14 mars 2014 à 07:11, Hari Prasad [iamhari1234@gmail.com](mailto:iamhari1234@gmail.com) a écrit : Hi Can you please explain the following I first started one node with only its ip in unicast host list and multicast discovery false. The cluster started with one node. Then I started another node with its unicast host value of node one. This also joined the cluster. This is in sync with what you said. But if this is the case the what the use for setting the multicast as false and setting the unicast host list. Cant any node join the cluster just like that by setting the unicast to any node in the cluster. how to limit this. > On Thursday, 13 March 2014 19:46:08 UTC+5:30, Hari Prasad wrote: > Ok Thank you 🙂 > > > On Thursday, 13 March 2014 19:35:52 UTC+5:30, David Pilato wrote: > > yes > > > > -- > > David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com) > > @dadoonet | @elasticsearchfr > > > > > Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamha...@gmail.com](mailto:iamha...@gmail.com)) a écrit: > > > > > > Is this the case the even if discovery.zen.ping.multicast.enabled is false? > > > > > > > On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > > > > Yes. Just launch the new node and set its unicast values to other running nodes. > > > > It will connect to the cluster and the cluster will add him as a new node. > > > > > > > > You don't have to modify existing settings, although you should do it to have updated settings in case of restart. > > > > > > > > -- > > > > David 😉 > > > > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > > > > > > Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > > > > > > > Hi > > > > I am having an elasticsearch cluster. I am using the unicast to discover nodes. Can I add nodes to list dynamically without restarting the cluster? > > > > I tried to do this with the prepareUpdateSettings but i got "ignoring transient setting [discovery.zen.ping.unicast.hosts], not dynamically updateable". > > > > Is there any other way to do this without restarting the cluster. > > > > > > > > I am not going for multicast because i don't want rouge nodes to join my cluster. I can go for it if i can, in anyway, limit what all nodes join the cluster, other than the cluster name. > > > > Are there any ways to do this. > > > > > > > > ## Thanks Hari > > > > > > > > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com). > > > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com). > > > > 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. 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**Author:** ![Hari\_Prasad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hari_prasad/32/56784_2.png) [@Hari\_Prasad](https://discuss.elastic.co/u/Hari_Prasad)\ **Post date:** [March 14, 2014, 6:58am UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/8 "2014-03-14T06:58:21Z")
Is the cluster name the only was to restrict nodes from joining into cluster, unicast or multicast. I do have security concern and my concern is is there a way the address it from elasticsearch itself rather than going into the network layer. On Friday, 14 March 2014 12:22:52 UTC+5:30, David Pilato wrote: > If the cluster name is different, the new node won't join the cluster. > Also, if you have a security concern, you should restrict network access > to your nodes on a transport layer (9300). > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 14 mars 2014 à 07:11, Hari Prasad \<[iamha...@gmail.com](mailto:iamha...@gmail.com) \\> a > écrit : > > Hi > Can you please explain the following > I first started one node with only its ip in unicast host list and > multicast discovery false. The cluster started with one node. > Then I started another node with its unicast host value of node one. This > also joined the cluster. > > This is in sync with what you said. But if this is the case the what the > use for setting the multicast as false and setting the unicast host list. > Cant any node join the cluster just like that by setting the unicast to > any node in the cluster. how to limit this. > > On Thursday, 13 March 2014 19:46:08 UTC+5:30, Hari Prasad wrote: > > > Ok Thank you 🙂 > > > > On Thursday, 13 March 2014 19:35:52 UTC+5:30, David Pilato wrote: > > > > > yes > > > > > > -- > > > _David Pilato_ | _Technical Advocate_ | _[Elasticsearch.com](http://Elasticsearch.com) > > > [http://Elasticsearch.com](http://Elasticsearch.com)_ > > > @dadoonet [https://twitter.com/dadoonet](https://twitter.com/dadoonet) | @elasticsearchfr[https://twitter.com/elasticsearchfr](https://twitter.com/elasticsearchfr) > > > > > > Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamha...@gmail.com](mailto:iamha...@gmail.com)) a écrit: > > > > > > Is this the case the even if discovery.zen.ping.multicast.enabled is > > > false? > > > > > > On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > > > > > > > Yes. Just launch the new node and set its unicast values to other > > > > running nodes. > > > > It will connect to the cluster and the cluster will add him as a new > > > > node. > > > > > > > > You don't have to modify existing settings, although you should do it > > > > to have updated settings in case of restart. > > > > > > > > -- > > > > David 😉 > > > > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > > > > > > Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > > > > > > > Hi > > > > I am having an elasticsearch cluster. I am using the unicast to > > > > discover nodes. Can I add nodes to list dynamically without restarting the > > > > cluster? > > > > I tried to do this with the prepareUpdateSettings but i got "ignoring > > > > transient setting [discovery.zen.ping.unicast.hosts], not dynamically > > > > updateable". > > > > Is there any other way to do this without restarting the cluster. > > > > > > > > I am not going for multicast because i don't want rouge nodes to join > > > > my cluster. I can go for it if i can, in anyway, limit what all nodes join > > > > the cluster, other than the cluster name. > > > > Are there any ways to do this. > > > > > > > > ## Thanks Hari > > > > > > > > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%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. 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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 14, 2014, 7:45am UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/9 "2014-03-14T07:45:30Z")
AFAIK no but I might be wrong. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 14 mars 2014 à 07:58, Hari Prasad [iamhari1234@gmail.com](mailto:iamhari1234@gmail.com) a écrit : Is the cluster name the only was to restrict nodes from joining into cluster, unicast or multicast. I do have security concern and my concern is is there a way the address it from elasticsearch itself rather than going into the network layer. > On Friday, 14 March 2014 12:22:52 UTC+5:30, David Pilato wrote: > If the cluster name is different, the new node won't join the cluster. > Also, if you have a security concern, you should restrict network access to your nodes on a transport layer (9300). > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 14 mars 2014 à 07:11, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > Hi > Can you please explain the following > I first started one node with only its ip in unicast host list and multicast discovery false. The cluster started with one node. > Then I started another node with its unicast host value of node one. This also joined the cluster. > > This is in sync with what you said. But if this is the case the what the use for setting the multicast as false and setting the unicast host list. > Cant any node join the cluster just like that by setting the unicast to any node in the cluster. how to limit this. > > > On Thursday, 13 March 2014 19:46:08 UTC+5:30, Hari Prasad wrote: > > Ok Thank you 🙂 > > > > > On Thursday, 13 March 2014 19:35:52 UTC+5:30, David Pilato wrote: > > > yes > > > > > > -- > > > David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com) > > > @dadoonet | @elasticsearchfr > > > > > > > Le 13 mars 2014 à 15:00:10, Hari Prasad ([iamha...@gmail.com](mailto:iamha...@gmail.com)) a écrit: > > > > > > > > Is this the case the even if discovery.zen.ping.multicast.enabled is false? > > > > > > > > > On Thursday, 13 March 2014 19:17:19 UTC+5:30, David Pilato wrote: > > > > > Yes. Just launch the new node and set its unicast values to other running nodes. > > > > > It will connect to the cluster and the cluster will add him as a new node. > > > > > > > > > > You don't have to modify existing settings, although you should do it to have updated settings in case of restart. > > > > > > > > > > -- > > > > > David 😉 > > > > > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > > > > > > > > Le 13 mars 2014 à 14:38, Hari Prasad [iamha...@gmail.com](mailto:iamha...@gmail.com) a écrit : > > > > > > > > > > Hi > > > > > I am having an elasticsearch cluster. I am using the unicast to discover nodes. Can I add nodes to list dynamically without restarting the cluster? > > > > > I tried to do this with the prepareUpdateSettings but i got "ignoring transient setting [discovery.zen.ping.unicast.hosts], not dynamically updateable". > > > > > Is there any other way to do this without restarting the cluster. > > > > > > > > > > I am not going for multicast because i don't want rouge nodes to join my cluster. I can go for it if i can, in anyway, limit what all nodes join the cluster, other than the cluster name. > > > > > Are there any ways to do this. > > > > > > > > > > ## Thanks Hari > > > > > > > > > > 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/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/127e4ba6-3fab-4fca-8595-e4506ef8f101%40googlegroups.com). > > > > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > > > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5a2de96-f308-495a-8de4-07feca421759%40googlegroups.com). > > > > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/7af0beb0-880c-4df4-b182-eb026210959b%40googlegroups.com). > 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. 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**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, 1:43am UTC](https://discuss.elastic.co/t/adding-new-nodes-to-cluster-with-unicast-without-restarting/16351/10 "2017-07-06T01:43:13Z")