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From "Izaak Rubin (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-727) Client caught in an infinite loop when trying to connect to cached server locations
Date Mon, 07 Jul 2008 22:40:31 GMT
Client caught in an infinite loop when trying to connect to cached server locations
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                 Key: HBASE-727
                 URL: https://issues.apache.org/jira/browse/HBASE-727
             Project: Hadoop HBase
          Issue Type: Bug
          Components: client, ipc
            Reporter: Izaak Rubin
            Assignee: Izaak Rubin
            Priority: Minor


HbaseRPC, which (to my understanding) is used whenever there is a need to connect to a server,
enters an infinite loop to continually retry the connection until it succeeds.  This makes
sense for server-to-server interaction, but it doesn't necessarily make sense for all client-to-server
interaction.

The problem I first observed was in doing fast restarts of HBase.  When I attempted to reload
the UI after a restart, it would infinitely try to re-contact the cached server location from
before the restart.  The correct behavior would be to break out of the loop as soon as possible
in situations like the one above.  I think that throwing a RetriesExhaustedException would
be the best way to do this, although if anyone has any suggestions please let me know.

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