# Problem occured with same name of cluster in different machines **URL:** \ **Category:** Elasticsearch\ **Created:** [May 28, 2015, 5:12pm UTC](https://discuss.elastic.co/t/problem-occured-with-same-name-of-cluster-in-different-machines/23710 "2015-05-28T17:12:09Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Mehmet\_Ozer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mehmet_ozer/32/81567_2.png) [@Mehmet\_Ozer](https://discuss.elastic.co/u/Mehmet_Ozer)\ **Post date:** [May 28, 2015, 5:12pm UTC](https://discuss.elastic.co/t/problem-occured-with-same-name-of-cluster-in-different-machines/23710/1 "2015-05-28T17:12:09Z")
Hello, I have a weird issue today and it gives me lots of problem. I had two cluster different but unfortunatelly I gave them the same names by mistake; lets say; test\_cluster - both cluster have had totaly different machines ( it was working well its been one month) - today I added a machine in one of the cluster and I saw that all the machines were in the same cluster physically (it was not the case before adding the machine) - I have chacked the unicast list; there were no machine in common So someone can explain me how I had this problem and how I can seperate them ? Thank you ## -- Please update your bookmarks! We have moved to [https://discuss.elastic.co/](https://discuss.elastic.co/) 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/a3b29cb4-360f-4fea-9514-2dd90d25a682%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a3b29cb4-360f-4fea-9514-2dd90d25a682%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:** [May 28, 2015, 9:54pm UTC](https://discuss.elastic.co/t/problem-occured-with-same-name-of-cluster-in-different-machines/23710/2 "2015-05-28T21:54:01Z")
This is why - > **[Discovery | Elastic Docs](https://www.elastic.co/docs/deploy-manage/distributed-architecture/discovery-cluster-formation/discovery-hosts-providers)** > > Discovery is the process by which the cluster formation module finds other nodes with which to form a cluster. This process runs when you start an Elasticsearch... Your best option is to use > **[Index-level shard allocation | Elastic Docs](https://www.elastic.co/docs/deploy-manage/distributed-architecture/shard-allocation-relocation-recovery/index-level-shard-allocation)** > > In Elasticsearch, per-index settings allow you to control the allocation of shards to nodes through index-level shard allocation settings. These settings... and then move indices to their correct node, then shutdown one cluster and change the cluster name. PS - We're moving to [https://discuss.elastic.co/](https://discuss.elastic.co/), please join us there for any future discussions! On 29 May 2015 at 03:12, mehmet özer [mehmetozer1988@gmail.com](mailto:mehmetozer1988@gmail.com) wrote: > Hello, > > I have a weird issue today and it gives me lots of problem. I had two > cluster different but unfortunatelly I gave them the same names by mistake; > > lets say; > test\_cluster > > - both cluster have had totaly different machines ( it was working > well its been one month) > - today I added a machine in one of the cluster and I saw that all the > machines were in the same cluster physically (it was not the case before > adding the machine) > - I have chacked the unicast list; there were no machine in common > > So someone can explain me how I had this problem and how I can seperate > them ? > > Thank you > > ## -- Please update your bookmarks! We have moved to [https://discuss.elastic.co/](https://discuss.elastic.co/) > > 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/a3b29cb4-360f-4fea-9514-2dd90d25a682%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a3b29cb4-360f-4fea-9514-2dd90d25a682%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/a3b29cb4-360f-4fea-9514-2dd90d25a682%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/a3b29cb4-360f-4fea-9514-2dd90d25a682%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ## -- Please update your bookmarks! We have moved to [https://discuss.elastic.co/](https://discuss.elastic.co/) 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/CAEYi1X-q3V5xDDPg8HXC0dSZ3DoWxRTWjZF90Z-w4Ag3mC2vTA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X-q3V5xDDPg8HXC0dSZ3DoWxRTWjZF90Z-w4Ag3mC2vTA%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, 12:11am UTC](https://discuss.elastic.co/t/problem-occured-with-same-name-of-cluster-in-different-machines/23710/3 "2017-07-06T00:11:10Z")