# ES cluster stops working when enabling too many Logstash workers to send bulk requests to it **URL:** \ **Category:** Elasticsearch\ **Created:** [January 21, 2020, 2:44pm UTC](https://discuss.elastic.co/t/es-cluster-stops-working-when-enabling-too-many-logstash-workers-to-send-bulk-requests-to-it/215898 "2020-01-21T14:44:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![viniciof](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/viniciof/32/53454_2.png) [@viniciof](https://discuss.elastic.co/u/viniciof)\ **Post date:** [January 21, 2020, 2:44pm UTC](https://discuss.elastic.co/t/es-cluster-stops-working-when-enabling-too-many-logstash-workers-to-send-bulk-requests-to-it/215898/1 "2020-01-21T14:44:14Z")
I've noticed that when I scale-out the number of Logstash apps I have in containers writing to same ES cluster it stops all activity (index & search) But as soon as I go back to the reduced number of workers (from 20 to 8) the cluster works back again. The problem is that # of apps is not enough to cope with the load and I want to send more data to ES. ![image](https://us1.discourse-cdn.com/elastic/original/3X/f/0/f04185c4623ddef88c99aca5e583dad996aa215b.png) why is this happening ? I though it was because I didn't have enough ingest nodes (my Logstash apps are writing to 2 of them) but then I no longer think that because it is "bulk" thread pools in many data nodes (not ingest) who are completely loaded and rejecting requests. appreciate any inputs, Regards. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 18, 2020, 2:44pm UTC](https://discuss.elastic.co/t/es-cluster-stops-working-when-enabling-too-many-logstash-workers-to-send-bulk-requests-to-it/215898/2 "2020-02-18T14:44:14Z")
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