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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Using HBase with a shared filesystem (gluster, nfs, s3, etc)
Date Tue, 25 Aug 2015 16:40:35 GMT
Can you give a bit more information:

which filesystem you use
which hbase release you use
master log snippet for the long region assignment


On Tue, Aug 25, 2015 at 9:30 AM, donmai <doodnet@gmail.com> wrote:

> Hi,
> I'm curious about how exactly region movement works with regard to data
> transfer. To my understanding from the docs given an HDFS-backed cluster, a
> region movement / transition involves changing things in meta only, all
> data movement for locality is handled by HDFS. In the case where rootdir is
> a shared file system, there shouldn't be any data movement with a region
> reassignment, correct? I'm running into performance issues where region
> assignment takes a very long time and I'm trying to figure out why.
> Thanks!

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