HBase
  1. HBase
  2. HBASE-9278

Reading Pre-namespace meta table edits kills the reader

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Critical Critical
    • Resolution: Fixed
    • Affects Version/s: 0.95.2
    • Fix Version/s: 0.98.0, 0.96.0
    • Component/s: migration, wal
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      In upgrading to 0.96, there might be some meta/root table edits. Currently, we are just killing SplitLogWorker thread in case it sees any META, or ROOT waledit, which blocks log splitting/replaying of remaining WALs.

      2013-08-20 15:45:16,998 ERROR regionserver.SplitLogWorker (SplitLogWorker.java:run(210)) - unexpected error 
      java.lang.IllegalArgumentException: .META. no longer exists. The table has been renamed to hbase:meta
              at org.apache.hadoop.hbase.TableName.valueOf(TableName.java:269)
              at org.apache.hadoop.hbase.TableName.valueOf(TableName.java:261)
              at org.apache.hadoop.hbase.regionserver.wal.HLogKey.readFields(HLogKey.java:338)
              at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1898)
              at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1938)
              at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.readNext(SequenceFileLogReader.java:215)
              at org.apache.hadoop.hbase.regionserver.wal.ReaderBase.next(ReaderBase.java:98)
              at org.apache.hadoop.hbase.regionserver.wal.ReaderBase.next(ReaderBase.java:85)
              at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.getNextLogLine(HLogSplitter.java:582)
              at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLogFile(HLogSplitter.java:292)
              at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLogFile(HLogSplitter.java:209)
              at org.apache.hadoop.hbase.regionserver.SplitLogWorker$1.exec(SplitLogWorker.java:138)
              at org.apache.hadoop.hbase.regionserver.SplitLogWorker.grabTask(SplitLogWorker.java:358)
              at org.apache.hadoop.hbase.regionserver.SplitLogWorker.taskLoop(SplitLogWorker.java:245)
              at org.apache.hadoop.hbase.regionserver.SplitLogWorker.run(SplitLogWorker.java:205)
              at java.lang.Thread.run(Thread.java:662)
      2013-08-20 15:45:16,999 INFO  regionserver.SplitLogWorker (SplitLogWorker.java:run(212)) - SplitLogWorker localhost,60020,1377035111898 exiting
      
      1. HBase-9278-v2-rebase.patch
        13 kB
        Himanshu Vashishtha
      2. HBase-9278-v2.patch
        13 kB
        Himanshu Vashishtha
      3. HBase-9278-v1-1.patch
        13 kB
        Himanshu Vashishtha
      4. HBase-9278-v1.patch
        13 kB
        Himanshu Vashishtha
      5. HBase-9278-v0.patch
        7 kB
        Himanshu Vashishtha
      6. 9278v3.txt
        7 kB
        stack

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            • Assignee:
              Himanshu Vashishtha
              Reporter:
              Himanshu Vashishtha
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              Dates

              • Created:
                Updated:
                Resolved:

                Development