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From Sean Busbey <>
Subject Re: Problem starting region server with Hbase version hbase-2.0.0
Date Thu, 07 Jun 2018 00:43:48 GMT
On Wed, Jun 6, 2018 at 6:11 PM, Mich Talebzadeh
<> wrote:
> so the region server started OK but then I had a problem with master :(
> java.lang.IllegalStateException: The procedure WAL relies on the ability to
> hsync for proper operation during component failures, but the underlying
> filesystem does not support doing so. Please check the config value of
> '' to set the desired level of
> robustness and ensure the config value of 'hbase.wal.dir' points to a
> FileSystem mount that can provide it.

This error means that you're running on top of a Filesystem that
doesn't provide sync.

Are you using HDFS? What version?

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