hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Deepak Sharma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10933) hbck -fixHdfsOrphans is not working properly it throws null pointer exception
Date Tue, 08 Apr 2014 14:50:14 GMT
Deepak Sharma created HBASE-10933:
-------------------------------------

             Summary: hbck -fixHdfsOrphans is not working properly it throws null pointer
exception
                 Key: HBASE-10933
                 URL: https://issues.apache.org/jira/browse/HBASE-10933
             Project: HBase
          Issue Type: Bug
          Components: hbck
    Affects Versions: 0.94.16
            Reporter: Deepak Sharma
            Priority: Critical


if we regioninfo file is not existing in hbase region then if we run hbck repair or hbck -fixHdfsOrphans
then it is not able to resolve this problem it throws null pointer exception

2014-04-08 20:11:49,750 INFO  [main] util.HBaseFsck (HBaseFsck.java:adoptHdfsOrphans(470))
- Attempting to handle orphan hdfs dir: hdfs://10.18.40.28:54310/hbase/TestHdfsOrphans1/5a3de9ca65e587cb05c9384a3981c950
java.lang.NullPointerException
	at org.apache.hadoop.hbase.util.HBaseFsck$TableInfo.access$000(HBaseFsck.java:1939)
	at org.apache.hadoop.hbase.util.HBaseFsck.adoptHdfsOrphan(HBaseFsck.java:497)
	at org.apache.hadoop.hbase.util.HBaseFsck.adoptHdfsOrphans(HBaseFsck.java:471)
	at org.apache.hadoop.hbase.util.HBaseFsck.restoreHdfsIntegrity(HBaseFsck.java:591)
	at org.apache.hadoop.hbase.util.HBaseFsck.offlineHdfsIntegrityRepair(HBaseFsck.java:369)
	at org.apache.hadoop.hbase.util.HBaseFsck.onlineHbck(HBaseFsck.java:447)
	at org.apache.hadoop.hbase.util.HBaseFsck.exec(HBaseFsck.java:3769)
	at org.apache.hadoop.hbase.util.HBaseFsck.run(HBaseFsck.java:3587)
	at com.huawei.isap.test.smartump.hadoop.hbase.HbaseHbckRepair.repairToFixHdfsOrphans(HbaseHbckRepair.java:244)
	at com.huawei.isap.test.smartump.hadoop.hbase.HbaseHbckRepair.setUp(HbaseHbckRepair.java:84)
	at junit.framework.TestCase.runBare(TestCase.java:132)
	at junit.framework.TestResult$1.protect(TestResult.java:110)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.framework.TestResult.run(TestResult.java:113)
	at junit.framework.TestCase.run(TestCase.java:124)
	at junit.framework.TestSuite.runTest(TestSuite.java:243)
	at junit.framework.TestSuite.run(TestSuite.java:238)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


problem i got it is because since in HbaseFsck class 

 private void adoptHdfsOrphan(HbckInfo hi)
we are intializing tableinfo using SortedMap<String, TableInfo> tablesInfo object
TableInfo tableInfo = tablesInfo.get(tableName);


but  in private SortedMap<String, TableInfo> loadHdfsRegionInfos()

 for (HbckInfo hbi: hbckInfos) {

      if (hbi.getHdfsHRI() == null) {
        // was an orphan
        continue;
      }

we have check if a region is orphan then that table will can not be added in SortedMap<String,
TableInfo> tablesInfo

so later while using this we get null pointer exception



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message