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https://issues.apache.org/jira/browse/HBASE-8525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663588#comment-13663588
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Lars Hofhansl commented on HBASE-8525:
--------------------------------------
Tracked down the crazy logging scenario. We've been playing around with
replication and in the process a single region server took over most queues of
the others. Since the slave cluster is down (by design in this test) we get 3
log messages per second (one for each quorum peer in the slave) per queue to
manage, which leads to some crazy amount of logging.
I now want to introduce a mechanisms that can wait even longer if the slave
system is not available (up to a few minutes should be fine if the slave is
truly down).
> Use sleep multilier when choosing sinks in ReplicationSource
> ------------------------------------------------------------
>
> Key: HBASE-8525
> URL: https://issues.apache.org/jira/browse/HBASE-8525
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Priority: Trivial
> Fix For: 0.98.0, 0.95.1, 0.94.9
>
> Attachments: 8525-0.94.txt
>
>
> Currently we see this every second. Filling up the log:
> {code}
> 2013-05-10 18:36:00,766 INFO org.apache.zookeeper.ClientCnxn: Opening socket
> connection to server ist6-mnds1-2-sfm.ops.sfdc.net/10.224.156.197:2181. Will
> not attempt to authenticate using SASL (Unable to locate a login
> configuration)
> 2013-05-10 18:36:00,767 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for
> server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-05-10 18:36:01,868 INFO org.apache.zookeeper.ClientCnxn: Opening socket
> connection to server ist6-mnds1-4-sfm.ops.sfdc.net/10.224.156.199:2181. Will
> not attempt to authenticate using SASL (Unable to locate a login
> configuration)
> 2013-05-10 18:36:01,870 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for
> server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-05-10 18:36:01,971 INFO org.apache.zookeeper.ClientCnxn: Opening socket
> connection to server ist6-mnds1-3-sfm.ops.sfdc.net/10.224.156.198:2181. Will
> not attempt to authenticate using SASL (Unable to locate a login
> configuration)
> {code}
> Patch is trivial.
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