# Performance getting even worse after optimization **URL:** \ **Category:** Elasticsearch\ **Created:** [January 8, 2015, 9:40am UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533 "2015-01-08T09:40:45Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Xiaoting\_Ye](https://avatars.discourse-cdn.com/v4/letter/x/eb9ed0/32.png) [@Xiaoting\_Ye](https://discuss.elastic.co/u/Xiaoting_Ye)\ **Post date:** [January 8, 2015, 9:40am UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533/1 "2015-01-08T09:40:45Z")
Hi, I just did an \_optimize operation on a cluster (10 data nodes, roughly 350,000,000 docs in total). This a cluster only has one index. However, the performance gets even worse: the response time doubled or even tripled. Any hint on this? Thanks! -- 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/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%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:** [January 8, 2015, 10:10am UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533/2 "2015-01-08T10:10:09Z")
How big is the index, how many shards and replicas? What ES version? What java version? On 8 January 2015 at 20:40, Xiaoting Ye [xye@spokeo.com](mailto:xye@spokeo.com) wrote: > Hi, > > I just did an \_optimize operation on a cluster (10 data nodes, roughly > 350,000,000 docs in total). This a cluster only has one index. > > However, the performance gets even worse: the response time doubled or > even tripled. > > Any hint on this? > > Thanks! > > -- > 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/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%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/CAEYi1X8B\_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Xiaoting\_Ye](https://avatars.discourse-cdn.com/v4/letter/x/eb9ed0/32.png) [@Xiaoting\_Ye](https://discuss.elastic.co/u/Xiaoting_Ye)\ **Post date:** [January 8, 2015, 6:08pm UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533/3 "2015-01-08T18:08:55Z")
The index is of 149G, 19 shards with 1 replica. The es version is 1.4.1, and the java version is 1.7.0\_71. I have specific routing strategy and the query used in testing only goes to one shard: heap.percent ram.percent load 51 58 0.33 (when it is under continues query, just one query at a time) This specific shard has 22502484 docs, 10GB in size. Thanks! On Thu, Jan 8, 2015 at 2:10 AM, Mark Walkom [markwalkom@gmail.com](mailto:markwalkom@gmail.com) wrote: > How big is the index, how many shards and replicas? > What ES version? What java version? > > On 8 January 2015 at 20:40, Xiaoting Ye [xye@spokeo.com](mailto:xye@spokeo.com) wrote: > > > Hi, > > > > I just did an \_optimize operation on a cluster (10 data nodes, roughly > > 350,000,000 docs in total). This a cluster only has one index. > > > > However, the performance gets even worse: the response time doubled or > > even tripled. > > > > Any hint on this? > > > > Thanks! > > > > -- > > 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/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%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 a topic in the > Google Groups "elasticsearch" group. > To unsubscribe from this topic, visit > [https://groups.google.com/d/topic/elasticsearch/W49B4d9MWNk/unsubscribe](https://groups.google.com/d/topic/elasticsearch/W49B4d9MWNk/unsubscribe). > To unsubscribe from this group and all its topics, 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/CAEYi1X8B\_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com) > [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B\_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.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/CAGVN9k7xZTBpchkOSqp%3DyLxqSKozo1WhVUveq%2BRaLDHmd81kpA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAGVN9k7xZTBpchkOSqp%3DyLxqSKozo1WhVUveq%2BRaLDHmd81kpA%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![MohammadReza\_Zolfagh](https://avatars.discourse-cdn.com/v4/letter/m/b3f665/32.png) [@MohammadReza\_Zolfagh](https://discuss.elastic.co/u/MohammadReza_Zolfagh)\ **Post date:** [February 12, 2015, 12:33pm UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533/4 "2015-02-12T12:33:33Z")
Hi Xiaoting Ye, Do you find a solution for your problem? Best, On Thursday, January 8, 2015 at 9:39:16 PM UTC+3:30, Xiaoting Ye wrote: > The index is of 149G, 19 shards with 1 replica. > > The es version is 1.4.1, and the java version is 1.7.0\_71. > > I have specific routing strategy and the query used in testing only goes > to one shard: > heap.percent ram.percent load > 51 58 0.33 > > (when it is under continues query, just one query at a time) > > This specific shard has 22502484 docs, 10GB in size. > > Thanks! > > On Thu, Jan 8, 2015 at 2:10 AM, Mark Walkom \<[markw...@gmail.com](mailto:markw...@gmail.com) > \\> wrote: > > > How big is the index, how many shards and replicas? > > What ES version? What java version? > > > > On 8 January 2015 at 20:40, Xiaoting Ye \<[x...@spokeo.com](mailto:x...@spokeo.com) \\> > > wrote: > > > > > Hi, > > > > > > I just did an \_optimize operation on a cluster (10 data nodes, roughly > > > 350,000,000 docs in total). This a cluster only has one index. > > > > > > However, the performance gets even worse: the response time doubled or > > > even tripled. > > > > > > Any hint on this? > > > > > > Thanks! > > > > > > -- > > > 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/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com) > > > [https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/d9f9ba25-4a7f-4fba-978c-8368d74bc349%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 a topic in the > > Google Groups "elasticsearch" group. > > To unsubscribe from this topic, visit > > [https://groups.google.com/d/topic/elasticsearch/W49B4d9MWNk/unsubscribe](https://groups.google.com/d/topic/elasticsearch/W49B4d9MWNk/unsubscribe). > > To unsubscribe from this group and all its topics, 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/CAEYi1X8B\_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com) > > [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B\_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8B_qPdBA0S8JeXmhM2e013-YxQb5roZAJvEh-r1rxfQQ%40mail.gmail.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/542cdeb0-2f76-4995-9343-cd64ac62b1a9%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/542cdeb0-2f76-4995-9343-cd64ac62b1a9%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, 12:33am UTC](https://discuss.elastic.co/t/performance-getting-even-worse-after-optimization/21533/5 "2017-07-06T00:33:09Z")