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From "Nick Bailey (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-5794) BulkOutputFormat sometimes hangs when loading small SSTables
Date Tue, 23 Jul 2013 22:06:50 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nick Bailey reassigned CASSANDRA-5794:
--------------------------------------

    Assignee: Nick Bailey
    
> BulkOutputFormat sometimes hangs when loading small SSTables
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-5794
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5794
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 1.2.6
>         Environment: linux (centos 6 server, ubuntu 13.04 client)
>            Reporter: Jim Zamata
>            Assignee: Nick Bailey
>
> We have seen the bulk loader hang under some conditions.  This only seems to occur when
the last SSTable loaded is relatively small (1144 bytes in this case). Turning on debug logging
shows the StreamInSession starting to stream a file, "en_oef_834_thrift-MessageData-ic-1-Data.db"
below, and apparently getting a Thrift transport error.  This loader was able to other files,
some of them even smaller, without any problems.
> The Thrift exception only appears in the debug logs, and apparently does not cause the
stream session to fail.  It just hangs the session on both the server and the client until
the client is killed.  When the client process is killed, the server then gets an unexpected
EOF exception.

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