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From "Du, Jingcheng" <jingcheng...@intel.com>
Subject RE: RegionServer shutdown by some unknown reason.
Date Tue, 30 Aug 2016 05:47:04 GMT

Long GC pause delays the heartbeat from the region server to zookeeper, and make the connection
between the region server and zookeeper timeout.
Zookeeper deletes the znode of this region server after the connection is considered as expired,
master receives the event and reassign regions owned by this region server.
When this region server is back to work it receives the expired exception from the zookeeper,
then it is aborted accordingly.

You can tune your region server to reduce the GC pause, or enlarge the zookeeper timeout configuration
in hbase-site.xml (zookeeper.session.timeout) which has side-affect that it takes more time
to detect the failed region server by master.


-----Original Message-----
From: 邸星星 [mailto:dijingran@gmail.com] 
Sent: Tuesday, August 30, 2016 9:20 AM
To: dev@hbase.apache.org
Subject: RegionServer shutdown by some unknown reason.

Hi :

In our hbase cluster, one regionserver looked shutdown by it's self, I made an issue, can
somebody help me about this ?


A lot of thanks for all!
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