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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2010/01/22 08:42:21 UTC

[jira] Created: (HBASE-2156) HBASE-2037 broke Scan

HBASE-2037 broke Scan
---------------------

                 Key: HBASE-2156
                 URL: https://issues.apache.org/jira/browse/HBASE-2156
             Project: Hadoop HBase
          Issue Type: Bug
    Affects Versions: 0.20.3
            Reporter: Jean-Daniel Cryans
            Assignee: Jean-Daniel Cryans
            Priority: Blocker
             Fix For: 0.20.3


Paul Ambrose wrote to the mailing list about some tests he has that doesn't pass on 0.20.3RC1-2. Looking into the issue it appears that this modification:

{code}
   public Scan addFamily(byte [] family) {
     familyMap.remove(family);
-    familyMap.put(family, null);
+    familyMap.put(family, EMPTY_NAVIGABLE_SET);
     return this;
   }
{code}

Makes it that when you use addColumn after that you put qualifiers into EMPTY_NAVIGABLE_SET which is static hence shared among all scanners after that like META scanners when calling tableExists.

This was introduced by HBASE-2037.

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[jira] Resolved: (HBASE-2156) HBASE-2037 broke Scan

Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HBASE-2156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans resolved HBASE-2156.
---------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
     Hadoop Flags: [Reviewed]

I committed the fix to branch and a to-the-point test to branch and trunk per Benoit's comment.

> HBASE-2037 broke Scan
> ---------------------
>
>                 Key: HBASE-2156
>                 URL: https://issues.apache.org/jira/browse/HBASE-2156
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.20.3, 0.21.0
>
>         Attachments: HBASE-2156.patch
>
>
> Paul Ambrose wrote to the mailing list about some tests he has that doesn't pass on 0.20.3RC1-2. Looking into the issue it appears that this modification:
> {code}
>    public Scan addFamily(byte [] family) {
>      familyMap.remove(family);
> -    familyMap.put(family, null);
> +    familyMap.put(family, EMPTY_NAVIGABLE_SET);
>      return this;
>    }
> {code}
> Makes it that when you use addColumn after that you put qualifiers into EMPTY_NAVIGABLE_SET which is static hence shared among all scanners after that like META scanners when calling tableExists.
> This was introduced by HBASE-2037.

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[jira] Commented: (HBASE-2156) HBASE-2037 broke Scan

Posted by "Benoit Sigoure (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HBASE-2156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803634#action_12803634 ] 

Benoit Sigoure commented on HBASE-2156:
---------------------------------------

+1, figured out the bug with JD and verified the patch.
The unit test it's adding could be more minimalist and straight-to-the-point but oh well...

> HBASE-2037 broke Scan
> ---------------------
>
>                 Key: HBASE-2156
>                 URL: https://issues.apache.org/jira/browse/HBASE-2156
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.20.3
>
>         Attachments: HBASE-2156.patch
>
>
> Paul Ambrose wrote to the mailing list about some tests he has that doesn't pass on 0.20.3RC1-2. Looking into the issue it appears that this modification:
> {code}
>    public Scan addFamily(byte [] family) {
>      familyMap.remove(family);
> -    familyMap.put(family, null);
> +    familyMap.put(family, EMPTY_NAVIGABLE_SET);
>      return this;
>    }
> {code}
> Makes it that when you use addColumn after that you put qualifiers into EMPTY_NAVIGABLE_SET which is static hence shared among all scanners after that like META scanners when calling tableExists.
> This was introduced by HBASE-2037.

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[jira] Updated: (HBASE-2156) HBASE-2037 broke Scan

Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HBASE-2156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans updated HBASE-2156:
--------------------------------------

    Attachment: HBASE-2156.patch

Patch that fixes the bug by verifying if the set is the static one. Also adds a unit tests and re-indents the previous one in the class (which was horribly wrong).

> HBASE-2037 broke Scan
> ---------------------
>
>                 Key: HBASE-2156
>                 URL: https://issues.apache.org/jira/browse/HBASE-2156
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.20.3
>
>         Attachments: HBASE-2156.patch
>
>
> Paul Ambrose wrote to the mailing list about some tests he has that doesn't pass on 0.20.3RC1-2. Looking into the issue it appears that this modification:
> {code}
>    public Scan addFamily(byte [] family) {
>      familyMap.remove(family);
> -    familyMap.put(family, null);
> +    familyMap.put(family, EMPTY_NAVIGABLE_SET);
>      return this;
>    }
> {code}
> Makes it that when you use addColumn after that you put qualifiers into EMPTY_NAVIGABLE_SET which is static hence shared among all scanners after that like META scanners when calling tableExists.
> This was introduced by HBASE-2037.

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[jira] Commented: (HBASE-2156) HBASE-2037 broke Scan

Posted by "stack (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HBASE-2156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803782#action_12803782 ] 

stack commented on HBASE-2156:
------------------------------

+1

> HBASE-2037 broke Scan
> ---------------------
>
>                 Key: HBASE-2156
>                 URL: https://issues.apache.org/jira/browse/HBASE-2156
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.20.3
>
>         Attachments: HBASE-2156.patch
>
>
> Paul Ambrose wrote to the mailing list about some tests he has that doesn't pass on 0.20.3RC1-2. Looking into the issue it appears that this modification:
> {code}
>    public Scan addFamily(byte [] family) {
>      familyMap.remove(family);
> -    familyMap.put(family, null);
> +    familyMap.put(family, EMPTY_NAVIGABLE_SET);
>      return this;
>    }
> {code}
> Makes it that when you use addColumn after that you put qualifiers into EMPTY_NAVIGABLE_SET which is static hence shared among all scanners after that like META scanners when calling tableExists.
> This was introduced by HBASE-2037.

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