# Slow indexing and large index **URL:** \ **Category:** Elasticsearch\ **Created:** [May 16, 2014, 4:19pm UTC](https://discuss.elastic.co/t/slow-indexing-and-large-index/17562 "2014-05-16T16:19:53Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![J\_L](https://avatars.discourse-cdn.com/v4/letter/j/85e7bf/32.png) [@J\_L](https://discuss.elastic.co/u/J_L)\ **Post date:** [May 16, 2014, 4:19pm UTC](https://discuss.elastic.co/t/slow-indexing-and-large-index/17562/1 "2014-05-16T16:19:53Z")
For this environment i'm using ES + Logstash + GrayLog2 I've manually ( and stupidly ) deleted the elasticsearch indices in /var/lib/elasticsearch/.... Then i've cleaned mongodb to reset the GL2 config Logstash is reading logfiles and sending GELF output In GL2 i created Inputs for UDP GELF All is working fine BUT the indexing is now very slow, on average 50 messages per second. I saw frequent numbers of over 2000 messages per second What can i do to analyze, troubleshoot, fix this issue ? Best Regards, Joris -- 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/4dbaa503-d794-4b95-b924-13709ec11ee9%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/4dbaa503-d794-4b95-b924-13709ec11ee9%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, 1:28am UTC](https://discuss.elastic.co/t/slow-indexing-and-large-index/17562/2 "2017-07-06T01:28:50Z")
Closed on July 6, 2017, 1:28am UTC