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https://issues.apache.org/jira/browse/HBASE-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kannan Muthukkaruppan updated HBASE-2398:
-----------------------------------------

    Attachment: 2398_0.20_v1.txt

patch uploaded.

Was able to repro the problem prior to doing the fix on a local setup using a 
multi-threaded client which load lots of rows. I did see the occasional 
non-fatal NPE in the logs. The NPEs went away after the fix.

Running ant test right now.

> NPE in HLog.append when calling writer.getLength
> ------------------------------------------------
>
>                 Key: HBASE-2398
>                 URL: https://issues.apache.org/jira/browse/HBASE-2398
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Assignee: Kannan Muthukkaruppan
>             Fix For: 0.20.4, 0.21.0
>
>         Attachments: 2398_0.20_v1.txt
>
>
> Doing some test uploads on a fresh single node setup, I'm seeing non-fatal 
> NPEs in the region server log coming from HLog.append when calling 
> writer.getLength. I'll post a log in a follow-up comment.
> Assigning to Nicolas so that he takes a look.

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