# Multiple master problem in elasticsearch 0.90.10 **URL:** \ **Category:** Elasticsearch\ **Created:** [August 5, 2014, 12:30pm UTC](https://discuss.elastic.co/t/multiple-master-problem-in-elasticsearch-0-90-10/19094 "2014-08-05T12:30:56Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ankit\_Mittal](https://avatars.discourse-cdn.com/v4/letter/a/67e7ee/32.png) [@Ankit\_Mittal](https://discuss.elastic.co/u/Ankit_Mittal)\ **Post date:** [August 5, 2014, 12:30pm UTC](https://discuss.elastic.co/t/multiple-master-problem-in-elasticsearch-0-90-10/19094/1 "2014-08-05T12:30:56Z")
Hi All, I am using 2 master node in my elasticsearch cluster and 2 data node. I ma using 2 RHEL server ( 1 master + 1 data node on each ) When i setup the above it is working fine for some time around 15 - 20 hours. but after then my cluster health is yellow. and the no available shards are reduce to half. when i check the elasticsearch data and master node , all 4 are running fine. Please help me in resolving the above issue. The requirement was to implement elasticsearch cluster on two server, for high availability ( 2 master on different server and 2 node on different server ). Please let me know if someone implemented high availability different from the above Thanks Ankit Mittla -- 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/02683f10-8b05-45b0-a608-f35029bf4e1e%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/02683f10-8b05-45b0-a608-f35029bf4e1e%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [August 6, 2014, 4:40am UTC](https://discuss.elastic.co/t/multiple-master-problem-in-elasticsearch-0-90-10/19094/2 "2014-08-06T04:40:22Z")
There should be no need to run a master and a data node on each machine. Only two masters is not enough to reliably form a consensus and you are only taking away processing power from the data node. -- Ivan On Tue, Aug 5, 2014 at 5:30 AM, Ankit Mittal [ankit.lnct09@gmail.com](mailto:ankit.lnct09@gmail.com) wrote: > Hi All, > > I am using 2 master node in my elasticsearch cluster and 2 data node. I ma > using 2 RHEL server ( 1 master + 1 data node on each ) > > When i setup the above it is working fine for some time around 15 - 20 > hours. but after then my cluster health is yellow. > and the no available shards are reduce to half. when i check the > elasticsearch data and master node , all 4 are running fine. > > Please help me in resolving the above issue. > The requirement was to implement elasticsearch cluster on two server, for > high availability ( 2 master on different server and 2 node on different > server ). > > Please let me know if someone implemented high availability different > from the above > > Thanks > Ankit Mittla > > -- > 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/02683f10-8b05-45b0-a608-f35029bf4e1e%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/02683f10-8b05-45b0-a608-f35029bf4e1e%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/02683f10-8b05-45b0-a608-f35029bf4e1e%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/02683f10-8b05-45b0-a608-f35029bf4e1e%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/CALY%3DcQALFjMcaR7VT9aV4OdOEMeiXkGUOFKW-dFoXZcqrn-1Ww%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQALFjMcaR7VT9aV4OdOEMeiXkGUOFKW-dFoXZcqrn-1Ww%40mail.gmail.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, 1:10am UTC](https://discuss.elastic.co/t/multiple-master-problem-in-elasticsearch-0-90-10/19094/3 "2017-07-06T01:10:37Z")