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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6733) [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-2]
Date Mon, 10 Sep 2012 23:52:08 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj Das updated HBASE-6733:
-------------------------------

    Attachment: 6733-1.patch

Attached is a simple patch (for trunk) to take care of the first problem (described in the
"description" of the jira). The patch resets the sleepMultiplier in every place where currentPath
gets (re)assigned. Could we please commit this one. 
I am looking at the other issue but seems like it will take more time.
                
> [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-2]
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-6733
>                 URL: https://issues.apache.org/jira/browse/HBASE-6733
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Devaraj Das
>             Fix For: 0.92.3
>
>         Attachments: 6733-1.patch
>
>
> The failure is in TestReplication.queueFailover (fails due to unreplicated rows). I have
come across two problems:
> 1. The sleepMultiplier is not properly reset when the currentPath is changed (in ReplicationSource.java).
> 2. ReplicationExecutor sometime removes files to replicate from the queue too early,
resulting in corresponding edits missing. Here the problem is due to the fact the log-file
length that the replication executor finds is not the most updated one, and hence it doesn't
read anything from there, and ultimately, when there is a log roll, the replication-queue
gets a new entry, and the executor drops the old entry out of the queue.

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