# Older Queries Slowed after new indices created **URL:** \ **Category:** Elasticsearch\ **Created:** [April 27, 2020, 12:14pm UTC](https://discuss.elastic.co/t/older-queries-slowed-after-new-indices-created/229951 "2020-04-27T12:14:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gsahu25](https://avatars.discourse-cdn.com/v4/letter/g/53a042/32.png) [@gsahu25](https://discuss.elastic.co/u/gsahu25)\ **Post date:** [April 27, 2020, 12:14pm UTC](https://discuss.elastic.co/t/older-queries-slowed-after-new-indices-created/229951/1 "2020-04-27T12:14:23Z")
Hi, I had few queries running fine on a set of indices. I loaded new indices which are big(total size 500GB). Now the queries have become slow. New indices are not queried. Can shard imbalance cause this? Any clue how to debug this? Regards, Gopal ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [May 7, 2020, 10:40am UTC](https://discuss.elastic.co/t/older-queries-slowed-after-new-indices-created/229951/2 "2020-05-07T10:40:52Z")
Have the allocation of the shards belonging to the initial set of indices changed? Are you sure the new indices are not queries and you are seeing the effects of less efficient page cache usage? Are there any changes in GC length or frequency? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 4, 2020, 10:40am UTC](https://discuss.elastic.co/t/older-queries-slowed-after-new-indices-created/229951/3 "2020-06-04T10:40:55Z")
Closed on June 4, 2020, 10:40am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.