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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10215) TableNotFoundException should be thrown after removing stale znode in ETH
Date Mon, 23 Dec 2013 20:16:50 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13855899#comment-13855899

Hadoop QA commented on HBASE-10215:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .
  ATTACHMENT ID: 12620236

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop1.1{color}.  The patch compiles against the hadoop 1.1 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

    {color:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/8269//console

This message is automatically generated.

> TableNotFoundException should be thrown after removing stale znode in ETH
> -------------------------------------------------------------------------
>                 Key: HBASE-10215
>                 URL: https://issues.apache.org/jira/browse/HBASE-10215
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.96.1, 0.94.14
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>            Priority: Minor
>             Fix For: 0.98.0, 0.94.16, 0.96.2, 0.99.0
>         Attachments: HBASE-10215.patch, HBASE-10215_v2.patch, HBASE-10215_v2.patch
> Lets suppose master went down while creating table then znode will be left in ENABLING
state. Master to recover them on restart. 
> If there are no meta entries for the table.
> While recovering the table we are checking whether table exists in meta or not, if not
we are removing the znode. After removing znode we need to throw TableNotFoundException. Presently
not throwing the exception so the znode will be recrated. It will be stale forever. Even on
master restart we cannot delete. We cannot create the table with same name also.
> {code}
>       // Check if table exists
>       if (!MetaReader.tableExists(catalogTracker, tableName)) {
>         // retainAssignment is true only during recovery.  In normal case it is false
>         if (!this.skipTableStateCheck) {
>           throw new TableNotFoundException(tableName);
>         } 
>         try {
>           this.assignmentManager.getZKTable().removeEnablingTable(tableName, true);
>         } catch (KeeperException e) {
>           // TODO : Use HBCK to clear such nodes
>           LOG.warn("Failed to delete the ENABLING node for the table " + tableName
>               + ".  The table will remain unusable. Run HBCK to manually fix the problem.");
>         }
>       }
> {code}

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