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From Mich Talebzadeh <mich.talebza...@gmail.com>
Subject Re: Problem starting region server with Hbase version hbase-2.0.0
Date Thu, 07 Jun 2018 05:57:54 GMT
yes correct I am using Hbase on hdfs  with hadoop-2.7.3

The file system is ext4.

I was hoping that I can avoid the sync option,

many thanks


Dr Mich Talebzadeh



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On 7 June 2018 at 01:43, Sean Busbey <busbey@apache.org> wrote:

> On Wed, Jun 6, 2018 at 6:11 PM, Mich Talebzadeh
> <mich.talebzadeh@gmail.com> 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
> > 'hbase.procedure.store.wal.use.hsync' 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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