I am somewhat new to SolrCloud and ZooKeeper.

We are deploying ZK and SolrCloud on AWS.
We are noticing an issue where the one of the three nodes in the ZooKeeper 
ensemble "drops out" of the ensemble (although the Java process continues to 
run fine and nothing obviously bad in the ZooKeeper log files).
And (perhaps its a coincidence) but the Solr cluster then seems to be impacted 
where Solr nodes appear as "gone" even though their Java process is still 
running.

When we restart ZooKeeper nodes the Solr Cluster does not recover.

I have ZooKeeper logs and Solr logs - just wondering what else I should capture 
before posting to this mailing list

Thanks!

-Frank


Frank Kelly
Principal Software Engineer
Predictive Analytics Team (SCBE/HAC/CDA)




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