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From "Eli Collins (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8041) HA: log a warning when a failover is first attempted
Date Thu, 09 Feb 2012 02:07:59 GMT
HA: log a warning when a failover is first attempted 
-----------------------------------------------------

                 Key: HADOOP-8041
                 URL: https://issues.apache.org/jira/browse/HADOOP-8041
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: ha
    Affects Versions: HA Branch (HDFS-1623)
            Reporter: Eli Collins


Currently we always warn for each client operation made to a NN we've failed over to:

{noformat}
hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfs -lsr /
12/02/08 17:43:04 WARN retry.RetryInvocationHandler: Exception while invoking getFileInfo
of class org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB after 0 fail
over attempts. Trying to fail over immediately.
{noformat}

I'm going to remove this warning in HDFS-2918 since we shouldn't warn every time a client
performs an operation, eg could be weeks after the failover. But we should eg log a warning
eg the client first does a failover.

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