Rahul Bhardwaj created CASSANDRA-8549:
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Summary: Not able to bring cassandra cluster to stable state
Key: CASSANDRA-8549
URL: https://issues.apache.org/jira/browse/CASSANDRA-8549
Project: Cassandra
Issue Type: Bug
Environment: centos 6
Reporter: Rahul Bhardwaj
Attachments: cassandra_conf.txt, system.log
Hi,
We are using cassandra 2.1 on prod environment (cluster with three 64 GB RAM
machines) where a batch of write operations are done per minute (around 10000
inserts) using PHP PDO.
Couple of days back we found our cluster unstable then we restarted cassandra
service on all machines, but since then cassandra is busy in flushing bulk of
sstable_activity which causes cassandra shutdown or unresponsive due to full
heap space (java heap space 8GB).
After several attempts of restarting cassandra service two nodes started. Out
of these two nodes, one node's cassandra daemon consumed whole RAM (64 GB). Top
command shows 75G of virtual memory consumed and 69 G of Resident memory
consumption. Other node is ok.
But node1 again busy in flushing sstable_activity and not getting statrted.
please help in solving this, these issues are on prod environment.
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