>From region server log:
2016-04-11 03:11:51,589 WARN org.apache.zookeeper.ClientCnxnSocket:
Connected to an old server; r-o mode will be unavailable
2016-04-11 03:11:51,589 INFO org.apache.zookeeper.ClientCnxn: Unable to
reconnect to ZooKeeper service, session 0x52ee1452fec5ac has expired,
Hello -
We've started experiencing regular failures of our HBase cluster. For the last
week we've had nightly failures about 1hr after a heavy batch process starts.
In the logs below we see the failure starting at 2016-04-11 03:11 in zookeeper,
master and region server logs:
zookeeper:
