We are using 5 machines cluster in production for
ElasticSearch. We are facing an issue that initially cluster response is
good but after 15-20 days of starting the services, ES response get
slow down, also indexing process get slow down. To resolve the issue we
have to restart ElasticSearch on couple of nodes.
Details:
ES Version: 1.5.2
RAM per node: 30 GB
ES Heap size per node: 12 GB
Disk Space per node: 1 TB
We are indexing 40 millions records in a day of size 30 GB. Indexes are created on daily basis. Replication factor is 2 as of now.
We have to restart the ES after 15-20 days to keep it stable.
It would be great help if anyone could share their suggestions