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Posted to dev@accumulo.apache.org by "Eric Newton (JIRA)" <ji...@apache.org> on 2012/07/06 20:19:36 UTC
[jira] [Created] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Eric Newton created ACCUMULO-676:
------------------------------------
Summary: root tablet taken off line before non-root metadata tables
Key: ACCUMULO-676
URL: https://issues.apache.org/jira/browse/ACCUMULO-676
Project: Accumulo
Issue Type: Bug
Components: master
Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
Environment: single tserver instance (desk testing)
Reporter: Eric Newton
Assignee: Eric Newton
Priority: Minor
Fix For: 1.5.0, 1.4.2
{noformat}
$ bin/accumulo admin stop localhost
{noformat}
This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
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[jira] [Reopened] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Posted by "John Vines (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
John Vines reopened ACCUMULO-676:
---------------------------------
Assignee: John Vines (was: Eric Newton)
1.4.2 Snapshot, single node install. I call admin stop localhost and it brings down the tserver and unregisters the logger fine. But then it gets stuck on a scan of the !METADATA table to validate that everything is correctly deallocated from that logger. We should tweak this so that if there are no tservers left, we don't check the !METADATA table.
This should not be an issue in trunk.
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: John Vines
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
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[jira] [Resolved] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Posted by "Eric Newton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Newton resolved ACCUMULO-676.
----------------------------------
Resolution: Fixed
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: Eric Newton
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
--
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[jira] [Commented] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Posted by "Eric Newton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408197#comment-13408197 ]
Eric Newton commented on ACCUMULO-676:
--------------------------------------
Also noticed that if the master loses its lock, the Fate operation that is waiting for the tablet servers to unload their tablets will complete successfully, without the tablet server being halted.
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: Eric Newton
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
--
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[jira] [Commented] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Posted by "Eric Newton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408199#comment-13408199 ]
Eric Newton commented on ACCUMULO-676:
--------------------------------------
Note, that this is only a problem when there are no other tablet servers.
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: Eric Newton
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
--
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[jira] [Resolved] (ACCUMULO-676) root tablet taken off line before
non-root metadata tables
Posted by "John Vines (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
John Vines resolved ACCUMULO-676.
---------------------------------
Resolution: Fixed
Assignee: Eric Newton (was: John Vines)
As I said, tweaked it to NOT scan the !METADATA table if there are no tserver.
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: Eric Newton
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
--
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[jira] [Comment Edited] (ACCUMULO-676) root tablet taken off line
before non-root metadata tables
Posted by "Eric Newton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ACCUMULO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408199#comment-13408199 ]
Eric Newton edited comment on ACCUMULO-676 at 7/6/12 7:52 PM:
--------------------------------------------------------------
Note: this is only a problem when there are no other tablet servers.
was (Author: ecn):
Note, that this is only a problem when there are no other tablet servers.
> root tablet taken off line before non-root metadata tables
> ----------------------------------------------------------
>
> Key: ACCUMULO-676
> URL: https://issues.apache.org/jira/browse/ACCUMULO-676
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Affects Versions: 1.5.0-SNAPSHOT, 1.4.0
> Environment: single tserver instance (desk testing)
> Reporter: Eric Newton
> Assignee: Eric Newton
> Priority: Minor
> Fix For: 1.5.0, 1.4.2
>
>
> {noformat}
> $ bin/accumulo admin stop localhost
> {noformat}
> This takes all tablets offline at the same time, which can take the root tablet offline before taking the metadata tablet offline, which will cause the tserver to fail to take the metadata tablet offline, and the system will fail to shutdown.
--
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