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https://issues.apache.org/jira/browse/HBASE-8582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13662510#comment-13662510
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Jonathan Hsieh commented on HBASE-8582:
---------------------------------------
+1, lgtm.
> Possible NullPointerException in ZKInterProcessLockBase#visitLocks
> ------------------------------------------------------------------
>
> Key: HBASE-8582
> URL: https://issues.apache.org/jira/browse/HBASE-8582
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 8582-v1.txt
>
>
> Running test suite on hadoop 2.0 I saw the following test failure:
> {code}
> testErrorReporter(org.apache.hadoop.hbase.util.TestHBaseFsck) Time elapsed:
> 0.003 sec <<< ERROR!
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.zookeeper.lock.ZKInterProcessLockBase.visitLocks(ZKInterProcessLockBase.java:426)
> at
> org.apache.hadoop.hbase.master.TableLockManager$ZKTableLockManager.visitAllLocks(TableLockManager.java:386)
> at
> org.apache.hadoop.hbase.util.hbck.TableLockChecker.checkTableLocks(TableLockChecker.java:76)
> at
> org.apache.hadoop.hbase.util.HBaseFsck.checkAndFixTableLocks(HBaseFsck.java:2480)
> at
> org.apache.hadoop.hbase.util.HBaseFsck.onlineHbck(HBaseFsck.java:460)
> at
> org.apache.hadoop.hbase.util.hbck.HbckTestingUtil.doFsck(HbckTestingUtil.java:65)
> at
> org.apache.hadoop.hbase.util.hbck.HbckTestingUtil.doFsck(HbckTestingUtil.java:41)
> at
> org.apache.hadoop.hbase.util.hbck.HbckTestingUtil.doFsck(HbckTestingUtil.java:36)
> at
> org.apache.hadoop.hbase.util.TestHBaseFsck.testErrorReporter(TestHBaseFsck.java:1868)
> {code}
> Here is related code:
> {code}
> public void visitLocks(MetadataHandler handler) throws IOException {
> List<String> children;
> try {
> children = ZKUtil.listChildrenNoWatch(zkWatcher, parentLockNode);
> {code}
> Looks like children was null.
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