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Posted to issues@hbase.apache.org by "Anoop Sam John (JIRA)" <ji...@apache.org> on 2012/05/16 08:18:10 UTC
[jira] [Created] (HBASE-6015) HBCK rerun should check all the
regions which it checked in the first run
Anoop Sam John created HBASE-6015:
-------------------------------------
Summary: HBCK rerun should check all the regions which it checked in the first run
Key: HBASE-6015
URL: https://issues.apache.org/jira/browse/HBASE-6015
Project: HBase
Issue Type: Bug
Components: hbck
Reporter: Anoop Sam John
When after the 1st round of run and possible fixes, HBCK does a rerun to check the consistency of the regions. At this rerun
1.It should check all the regions which it checked in the 1st round.
2.It should check only those regions which it checked in the 1st round. Might be some other regions can come out of the timelag check at rerun time.
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[jira] [Commented] (HBASE-6015) HBCK rerun should check all the
regions which it checked in the first run
Posted by "Jonathan Hsieh (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13277611#comment-13277611 ]
Jonathan Hsieh commented on HBASE-6015:
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Anoop -- I'm not sure I understand. Is the idea that it *only* checks problem regions from a previous round? Current behavior reloads all regions on the follow up rounds.
> HBCK rerun should check all the regions which it checked in the first run
> -------------------------------------------------------------------------
>
> Key: HBASE-6015
> URL: https://issues.apache.org/jira/browse/HBASE-6015
> Project: HBase
> Issue Type: Bug
> Components: hbck
> Reporter: Anoop Sam John
>
> When after the 1st round of run and possible fixes, HBCK does a rerun to check the consistency of the regions. At this rerun
> 1.It should check all the regions which it checked in the 1st round.
> 2.It should check only those regions which it checked in the 1st round. Might be some other regions can come out of the timelag check at rerun time.
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[jira] [Commented] (HBASE-6015) HBCK rerun should check all the
regions which it checked in the first run
Posted by "Anoop Sam John (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13277622#comment-13277622 ]
Anoop Sam John commented on HBASE-6015:
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My doubt was like below
One region found to be problematic and it is fixed. In the rerun we should recheck this region right. Now the timelag factor can apply and can remove this region from checking in the rerun [If this region fix has changed the modtime of the HRegionInfo]
Also at the 1st run some of the regions might have been excluded because those are changed recently [As per the timelag value] In the rerun do we need to check those regions? What if those at this time check happens and reports some issues? Will it look like for the use that the HBCK was not able to fix the issues which it reported in the 1st run?
These are my thought after seeing the timelag concept... Pls correct me if my understanding is wrong :)
> HBCK rerun should check all the regions which it checked in the first run
> -------------------------------------------------------------------------
>
> Key: HBASE-6015
> URL: https://issues.apache.org/jira/browse/HBASE-6015
> Project: HBase
> Issue Type: Bug
> Components: hbck
> Reporter: Anoop Sam John
>
> When after the 1st round of run and possible fixes, HBCK does a rerun to check the consistency of the regions. At this rerun
> 1.It should check all the regions which it checked in the 1st round.
> 2.It should check only those regions which it checked in the 1st round. Might be some other regions can come out of the timelag check at rerun time.
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