# The number of shards becomes 0 after changing index.number\_of\_shards **URL:** \ **Category:** Elasticsearch\ **Created:** [February 28, 2013, 5:06pm UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954 "2013-02-28T17:06:24Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Jingang\_Wang](https://avatars.discourse-cdn.com/v4/letter/j/ce7236/32.png) [@Jingang\_Wang](https://discuss.elastic.co/u/Jingang_Wang)\ **Post date:** [February 28, 2013, 5:06pm UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954/1 "2013-02-28T17:06:24Z")
Hi there, I found that when I changed the index.number\_of\_shards, such as from 5 to 10, the shards will become 0 (using elasticsearch master to view), it's so weird. could anybody encounter this situation? Where have I make a mistake? Any help would be appreciated! -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Kay\_Ropke](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kay_ropke/32/2424_2.png) [@Kay\_Ropke](https://discuss.elastic.co/u/Kay_Ropke)\ **Post date:** [February 28, 2013, 5:09pm UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954/2 "2013-02-28T17:09:25Z")
You cannot change the number of shards dynamically. The logs should show an exception and the number shouldn't change. On Thu, Feb 28, 2013 at 6:06 PM, Jingang Wang [bitwjg@gmail.com](mailto:bitwjg@gmail.com) wrote: > Hi there, I found that when I changed the index.number\_of\_shards, such as > from 5 to 10, the shards will become 0 (using elasticsearch master to > view), it's so weird. > could anybody encounter this situation? Where have I make a mistake? > Any help would be appreciated! > > -- > 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). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Jingang\_Wang](https://avatars.discourse-cdn.com/v4/letter/j/ce7236/32.png) [@Jingang\_Wang](https://discuss.elastic.co/u/Jingang_Wang)\ **Post date:** [February 28, 2013, 5:21pm UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954/3 "2013-02-28T17:21:08Z")
Thanks for your reply, and sorry for my wrong description. I know I can not change it dynamically, but I changed it in the config file\* elasticsearch.yml \*and restart ES, the number of shards is 0. On Friday, March 1, 2013 1:09:25 AM UTC+8, Kay Röpke wrote: > You cannot change the number of shards dynamically. The logs should show > an exception and the number shouldn't change. > > On Thu, Feb 28, 2013 at 6:06 PM, Jingang Wang \<[bit...@gmail.com](mailto:bit...@gmail.com)\ > > > wrote: > > > Hi there, I found that when I changed the index.number\_of\_shards, such as > > from 5 to 10, the shards will become 0 (using elasticsearch master to > > view), it's so weird. > > could anybody encounter this situation? Where have I make a mistake? > > Any help would be appreciated! > > > > -- > > 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) \. > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![simonw\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/simonw_2/32/1130_2.png) [@simonw\_2](https://discuss.elastic.co/u/simonw_2)\ **Post date:** [March 1, 2013, 9:26am UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954/4 "2013-03-01T09:26:23Z")
even if you change it in the yml file it would not be applied to existing indices. Yet, I think we should still fail in that case simon On Thursday, February 28, 2013 6:21:08 PM UTC+1, Jingang Wang wrote: > Thanks for your reply, and sorry for my wrong description. > I know I can not change it dynamically, but I changed it in the config file > > - elasticsearch.yml \*and restart ES, the number of shards is 0. > > On Friday, March 1, 2013 1:09:25 AM UTC+8, Kay Röpke wrote: > > > You cannot change the number of shards dynamically. The logs should show > > an exception and the number shouldn't change. > > > > On Thu, Feb 28, 2013 at 6:06 PM, Jingang Wang [bit...@gmail.com](mailto:bit...@gmail.com) wrote: > > > > > Hi there, I found that when I changed the index.number\_of\_shards, such > > > as from 5 to 10, the shards will become 0 (using elasticsearch master to > > > view), it's so weird. > > > could anybody encounter this situation? Where have I make a mistake? > > > Any help would be appreciated! > > > > > > -- > > > 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). > > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 2:48am UTC](https://discuss.elastic.co/t/the-number-of-shards-becomes-0-after-changing-index-number-of-shards/10954/5 "2017-07-06T02:48:54Z")