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Posted to issues@hbase.apache.org by "Daniel Iancu (JIRA)" <ji...@apache.org> on 2012/09/21 16:57:07 UTC
[jira] [Created] (HBASE-6856) Document the LeaseException thrown in
scanner next
Daniel Iancu created HBASE-6856:
-----------------------------------
Summary: Document the LeaseException thrown in scanner next
Key: HBASE-6856
URL: https://issues.apache.org/jira/browse/HBASE-6856
Project: HBase
Issue Type: Improvement
Components: documentation
Affects Versions: 0.92.0
Reporter: Daniel Iancu
In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
This particular case should be documented in the HBase guide.
Some key points
* the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
* it happens in the context of a slow/freezing RS#next
* it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
Harsh J investigated the issue and has some conclusions, see
http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/browser
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[jira] [Commented] (HBASE-6856) Document the LeaseException thrown
in scanner next
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460929#comment-13460929 ]
Hudson commented on HBASE-6856:
-------------------------------
Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #186 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/186/])
HBASE-6856 Document the LeaseException thrown in scanner next (Revision 1388604)
Result = FAILURE
stack :
Files :
* /hbase/trunk/src/docbkx/troubleshooting.xml
> Document the LeaseException thrown in scanner next
> --------------------------------------------------
>
> Key: HBASE-6856
> URL: https://issues.apache.org/jira/browse/HBASE-6856
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.92.0
> Reporter: Daniel Iancu
> Assignee: Daniel Iancu
> Labels: LeaseException
> Fix For: 0.96.0
>
>
> In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
> This particular case should be documented in the HBase guide.
> Some key points
> * the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
> * it happens in the context of a slow/freezing RS#next
> * it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
> Harsh J investigated the issue and has some conclusions, see
> http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
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[jira] [Commented] (HBASE-6856) Document the LeaseException thrown
in scanner next
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460740#comment-13460740 ]
Hudson commented on HBASE-6856:
-------------------------------
Integrated in HBase-TRUNK #3366 (See [https://builds.apache.org/job/HBase-TRUNK/3366/])
HBASE-6856 Document the LeaseException thrown in scanner next (Revision 1388604)
Result = FAILURE
stack :
Files :
* /hbase/trunk/src/docbkx/troubleshooting.xml
> Document the LeaseException thrown in scanner next
> --------------------------------------------------
>
> Key: HBASE-6856
> URL: https://issues.apache.org/jira/browse/HBASE-6856
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.92.0
> Reporter: Daniel Iancu
> Assignee: Daniel Iancu
> Labels: LeaseException
> Fix For: 0.96.0
>
>
> In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
> This particular case should be documented in the HBase guide.
> Some key points
> * the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
> * it happens in the context of a slow/freezing RS#next
> * it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
> Harsh J investigated the issue and has some conclusions, see
> http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
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[jira] [Commented] (HBASE-6856) Document the LeaseException thrown
in scanner next
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460697#comment-13460697 ]
stack commented on HBASE-6856:
------------------------------
I meant to say thanks Daniel for distilling the mailing list thread and making this issue.
> Document the LeaseException thrown in scanner next
> --------------------------------------------------
>
> Key: HBASE-6856
> URL: https://issues.apache.org/jira/browse/HBASE-6856
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.92.0
> Reporter: Daniel Iancu
> Assignee: Daniel Iancu
> Labels: LeaseException
> Fix For: 0.96.0
>
>
> In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
> This particular case should be documented in the HBase guide.
> Some key points
> * the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
> * it happens in the context of a slow/freezing RS#next
> * it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
> Harsh J investigated the issue and has some conclusions, see
> http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
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[jira] [Updated] (HBASE-6856) Document the LeaseException thrown in
scanner next
Posted by "Daniel Iancu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Iancu updated HBASE-6856:
--------------------------------
Description:
In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
This particular case should be documented in the HBase guide.
Some key points
* the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
* it happens in the context of a slow/freezing RS#next
* it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
Harsh J investigated the issue and has some conclusions, see
http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
was:
In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
This particular case should be documented in the HBase guide.
Some key points
* the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
* it happens in the context of a slow/freezing RS#next
* it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
Harsh J investigated the issue and has some conclusions, see
http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/browser
> Document the LeaseException thrown in scanner next
> --------------------------------------------------
>
> Key: HBASE-6856
> URL: https://issues.apache.org/jira/browse/HBASE-6856
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.92.0
> Reporter: Daniel Iancu
> Labels: LeaseException
>
> In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
> This particular case should be documented in the HBase guide.
> Some key points
> * the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
> * it happens in the context of a slow/freezing RS#next
> * it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
> Harsh J investigated the issue and has some conclusions, see
> http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
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[jira] [Resolved] (HBASE-6856) Document the LeaseException thrown
in scanner next
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-6856.
--------------------------
Resolution: Fixed
Fix Version/s: 0.96.0
Assignee: Daniel Iancu
Hadoop Flags: Reviewed
Committed. Let me push the book up to the site after this commit. Thanks for the mailing list distillation (and thanks Harsh for digging in on this one...)
> Document the LeaseException thrown in scanner next
> --------------------------------------------------
>
> Key: HBASE-6856
> URL: https://issues.apache.org/jira/browse/HBASE-6856
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.92.0
> Reporter: Daniel Iancu
> Assignee: Daniel Iancu
> Labels: LeaseException
> Fix For: 0.96.0
>
>
> In some situations clients that fetch data from a RS get a LeaseException instead of the usual ScannerTimeoutException/UnknownScannerException.
> This particular case should be documented in the HBase guide.
> Some key points
> * the source of exception is: org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230)
> * it happens in the context of a slow/freezing RS#next
> * it can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period
> Harsh J investigated the issue and has some conclusions, see
> http://mail-archives.apache.org/mod_mbox/hbase-user/201209.mbox/%3CCAOcnVr3R-LqtKhFsk8Bhrm-YW2i9O6J6Fhjz2h7q6_sxvwd2yw%40mail.gmail.com%3E
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