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From "Qiang Tian (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11902) RegionServer was blocked while aborting
Date Tue, 25 Nov 2014 03:28:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Qiang Tian updated HBASE-11902:
    Attachment: hbase11902-master.patch

bq. the master branch code writes ABORT_FLUSH log before we call wal.abortCacheFlush. so it
is also needed if wal.sync aborts?

the wal write will fail in this case since it is severe HDFS failure..

> RegionServer was blocked while aborting
> ---------------------------------------
>                 Key: HBASE-11902
>                 URL: https://issues.apache.org/jira/browse/HBASE-11902
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, wal
>    Affects Versions: 0.98.4
>         Environment: hbase-0.98.4, hadoop-2.3.0-cdh5.1, jdk1.7
>            Reporter: Victor Xu
>            Assignee: Qiang Tian
>         Attachments: hbase-hadoop-regionserver-hadoop461.cm6.log, hbase11902-master.patch,
> Generally, regionserver automatically aborts when isHealth() returns false. But it sometimes
got blocked while aborting. I saved the jstack and logs, and found out that it was caused
by datanodes failures. The "regionserver60020" thread was blocked while closing WAL. 
> This issue doesn't happen so frequently, but if it happens, it always leads to huge amount
of requests failure. The only way to do is KILL -9.
> I think it's a bug, but I haven't found a decent solution. Does anyone have the same

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