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Posted to issues@hbase.apache.org by "Li Pi (JIRA)" <ji...@apache.org> on 2011/08/29 16:20:38 UTC
[jira] [Created] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Race condition in Slab.java that occurs due to spinlock unlocking early.
------------------------------------------------------------------------
Key: HBASE-4278
URL: https://issues.apache.org/jira/browse/HBASE-4278
Project: HBase
Issue Type: Sub-task
Reporter: Li Pi
Assignee: Li Pi
Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Commented] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early
Posted by "Ted Yu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092935#comment-13092935 ]
Ted Yu commented on HBASE-4278:
-------------------------------
Integrated to TRUNK.
Thanks for the patch Li.
> Race condition in Slab.java that occurs due to spinlock unlocking early
> -----------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Updated] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Posted by "Li Pi (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Li Pi updated HBASE-4278:
-------------------------
Status: Patch Available (was: Open)
fixed.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Updated] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early
Posted by "Li Pi (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Li Pi updated HBASE-4278:
-------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
> Race condition in Slab.java that occurs due to spinlock unlocking early
> -----------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Commented] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Posted by "Ted Yu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092860#comment-13092860 ]
Ted Yu commented on HBASE-4278:
-------------------------------
The patch contains changes for src/docbkx/book.xml which I assume was unintended.
+1 on patch for Slab.java.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Updated] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early
Posted by "Ted Yu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu updated HBASE-4278:
--------------------------
Summary: Race condition in Slab.java that occurs due to spinlock unlocking early (was: Race condition in Slab.java that occurs due to spinlock unlocking early.)
> Race condition in Slab.java that occurs due to spinlock unlocking early
> -----------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Updated] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Posted by "Li Pi (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Li Pi updated HBASE-4278:
-------------------------
Attachment: 4278.diff
whoops.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Commented] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Posted by "Li Pi (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092864#comment-13092864 ]
Li Pi commented on HBASE-4278:
------------------------------
oh, whoops, will resubmit patch.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Updated] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early.
Posted by "Li Pi (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Li Pi updated HBASE-4278:
-------------------------
Attachment: 4278.diff
discovered by ted yu.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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[jira] [Commented] (HBASE-4278) Race condition in Slab.java that
occurs due to spinlock unlocking early
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093022#comment-13093022 ]
Hudson commented on HBASE-4278:
-------------------------------
Integrated in HBase-TRUNK #2157 (See [https://builds.apache.org/job/HBase-TRUNK/2157/])
HBASE-4278 Race condition in Slab.java that occurs due to spinlock unlocking
early (Li Pi)
tedyu :
Files :
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/io/hfile/slab/Slab.java
> Race condition in Slab.java that occurs due to spinlock unlocking early
> -----------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.
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