Mailing-List: contact user-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hbase.apache.org
MIME-Version: 1.0
In-Reply-To: <512A4548-13CA-4B62-8223-0DA7C9E0AF66@gmail.com>
References: <CD129FB9-789F-4390-B3E2-B237BCBAC9B3@digitalenvoy.net>
	<CALte62wz_LGehRo3mnxRJhxqLcho0bzQyaqOJguRvtUvnv8uYw@mail.gmail.com>
	<552F68EF-1469-4E23-83F0-0294AADFE521@digitalenvoy.net>
	<512A4548-13CA-4B62-8223-0DA7C9E0AF66@gmail.com>
Date: Tue, 22 Dec 2015 08:29:31 -0800
Message-ID: 
 <CALte62wQhMppYWOfiKu7-AXEbguaqWmHRyUZCNuFQPj2bUKyWw@mail.gmail.com>
Subject: Re: regions in transition
From: Ted Yu <yuzhihong@gmail.com>
To: "user@hbase.apache.org" <user@hbase.apache.org>
Content-Type: multipart/alternative; boundary=94eb2c0327f03e58aa05277f1cfb

--94eb2c0327f03e58aa05277f1cfb
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

>From RegionListTmpl.jamon :

<%if (onlineRegions !=3D null && onlineRegions.size() > 0) %>
...
<%else>
    <p>Not serving regions</p>
</%if>

The message means that there was no region online on the underlying server.

FYI

On Tue, Dec 22, 2015 at 7:18 AM, Brian Jeltema <bdjeltema@gmail.com> wrote:

> Following up, if I look at the MBase Master UI in the Ambari console I se=
e
> links to
> all of the region servers. If I click on those links, the Region Server
> page comes
> up and in the Regions section, is displays =E2=80=98Not serving regions=
=E2=80=99. I=E2=80=99m not
> sure
> if that means something is disabled, or it just doesn=E2=80=99t have any =
regions
> to server.
>
> > On Dec 22, 2015, at 6:19 AM, Brian Jeltema <bdjeltema@gmail.com> wrote:
> >
> >>
> >> Can you pick a few regions stuck in transition and check related regio=
n
> >> server logs to see why they couldn't be assigned ?
> >
> > I don=E2=80=99t see anything in the region logs relating any regions.
> >
> >>
> >> Which release were you using previously ?
> >
> > HDP 2.1 -> HDP 2.2
> >
> > So is it safe to stop HBase and delete the ZK node?
> >
> >>
> >> Thanks
> >>
> >> On Mon, Dec 21, 2015 at 3:54 PM, Brian Jeltema <bdjeltema@gmail.com>
> wrote:
> >>
> >>> I am doing a cluster upgrade to the HDP 2.2 stack. For some reason,
> after
> >>> the upgrade HBase
> >>> cannot find any regions for existing tables. I believe the HDFS file
> >>> system is OK. But looking at the ZooKeeper
> >>> nodes, I noticed that many (maybe all) of the regions were listed in
> the
> >>> ZooKeeper
> >>> /hbase-unsecure/region-in-transition node. I suspect this could be
> causing
> >>> a problem. Is it
> >>> safe to stop HBase and delete that node?
> >>>
> >>> Thanks
> >>> Brian
> >
>
>

--94eb2c0327f03e58aa05277f1cfb--