I have an ES cluster of 6 nodes running version 0.90.10
4 physical nodes:
Each of these nodes have a Logstash process consuming logs from AMQP and
index the data to localhost.
2 VM nodes:
These 2 nodes have Kibana installed and function as "GUI" nodes making use
of the "search load balance" functionality ES offers.
The 2 search load balance nodes disconnect very often ( at least 2 times
per 60 minutes ) from the cluster seemingly without any reason. Traffic is
minimal 2.6GB/day (not production yet).
Network engineers have monitored connections, setup tests to detect packet
loss and other network related issues without any result.
The symptoms are:
- All requests to the "search load balance nodes" port tcp/9200 hang.
- After a while in this state http requests on all nodes hang. (rare)
- Meanwhile indexing just continues without a problem on all 4 physical
A log extract of one of the "search load balance" nodes is attached.
Any ideas or advice to identify and solve this problem would be appreciated.
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