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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: region missing after restart ?
Date Thu, 27 May 2010 16:57:53 GMT
I see HBASE-2481's code in the official 0.20.4 release, so I'm not
sure what you are referring to. One thing we did forget was setting
the "Fix Version" filed in jira, and I just changed that.

0.20.4 is the latest release at the moment, although 0.20.5 is due
soon with one important fix for a regression that was added in 0.20.4


On Thu, May 27, 2010 at 4:21 AM, steven zhuang
<steven.zhuang.1984@gmail.com> wrote:
> thanks, J.D.
>     I have solved this problem brutally, cause now we are still using
> Hbase to developing some prototypes, I dropped the table and created
> another one.
>    Thanks for your help anyway. :)
>    There is one more question, I noticed in the release notes of
> Hbase 0.20.4 there is not big-fix for HBASE-2481, which is said to be
> fixed in 0.20.4. Checked the code, the code is still not changed. Will
> this bug be fixed in next release?
>    I just download release from hadoop.apache.org, the newest one is
> Hbase-0.20.4 there, is this the newest official release?
> On Wed, May 26, 2010 at 1:38 AM, Jean-Daniel Cryans <jdcryans@apache.org> wrote:
>> Probably missing updates in .META., if your region server that was
>> serving it failed or you had to kill -9 it then it lost the last edits
>> to it (unless you patched your HDFS to support fsSync, I guess not).
>> Currently to fix .META. it requires a manual intervention, which is
>> running bin/add_table.rb. Disable your table before running it. Look
>> in this mailing list's archive for stories of others users who had to
>> experience it.
>> J-D
>> On Tue, May 25, 2010 at 2:03 AM, steven zhuang
>> <steven.zhuang.1984@gmail.com> wrote:
>>> I have checked the HDFS, it seems that the data from "da_2010/01/09"
>>> to "r2_2010/01/10" is in HDFS, it is weird Hbase cannot online the
>>> corresponding region.
>>> I have enable the table in shell several times,  still it doesn't work.
>>> On Tue, May 25, 2010 at 4:55 PM, steven zhuang
>>> <steven.zhuang.1984@gmail.com> wrote:
>>>> hi, all,
>>>>             I have a table imported some data already, but I failed
>>>> import more data into it(still checking). for some reason I restarted
>>>> the cluster, and in the Web interface I have found out that there are
>>>> some regions missing. Below is what it shows, while I am sure there
>>>> are  rows like "ee_2010/01/09" or "ff_2010/01/07" in the table.
>>>>            I use the ruby shell, and scan the table with a missing
>>>> row key, and the command just hang there.
>>>>            I am using HBase 0.20.3.
>>>>            If we close the cluster while the cluster is doing
>>>> compaction, would the data get lost? I might have closed the cluster
>>>> while some regionserver is doing a compaction operation.
>>>> The Table on Web UI:
>>>> Name
>>>> Region Server                      Encoded Name     Start Key
>>>> End Key
>>>> hbt2table33,   ,1274761089803
>>>> dx-9j50d07.off.tn:60030           1484851145    bi_2010/01/19_3
>>>> hbt2table33,bi_2010/01/19_3,1274775708656     dx-9j50d07.off:60030
>>>>          2038135176    bi_2010/01/19_3   bp_2010/01/05
>>>> hbt2table33,bp_2010/01/05,1274775708656        dx-9j50d08.off.tn:60030
>>>>          1165242562    bp_2010/01/05     da_2010/01/09
>>>> hbt2table33,r2_2010/01/10,1274760679583        dd-9c34d07.off.tn:60030
>>>>          1829006811    r2_2010/01/10

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