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  1. HBase
  2. HBASE-20403

Prefetch sometimes doesn't work with encrypted file system

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0-beta-2
    • Fix Version/s: 3.0.0, 2.1.0, 2.0.2
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Log from long running test has following stack trace a few times:

      2018-04-09 18:33:21,523 WARN org.apache.hadoop.hbase.io.hfile.HFileReaderImpl: Prefetch path=hdfs://ns1/hbase/data/default/IntegrationTestBigLinkedList_20180409172704/35f1a7ef13b9d327665228abdbcdffae/meta/9089d98b2a6b4847b3fcf6aceb124988, offset=36884200, end=231005989
      java.lang.IllegalArgumentException
        at java.nio.Buffer.limit(Buffer.java:275)
        at org.apache.hadoop.hdfs.ByteBufferStrategy.readFromBlock(ReaderStrategy.java:183)
        at org.apache.hadoop.hdfs.DFSInputStream.readBuffer(DFSInputStream.java:705)
        at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:766)
        at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:831)
        at org.apache.hadoop.crypto.CryptoInputStream.read(CryptoInputStream.java:197)
        at java.io.DataInputStream.read(DataInputStream.java:149)
        at org.apache.hadoop.hbase.io.hfile.HFileBlock.readWithExtra(HFileBlock.java:762)
        at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderImpl.readAtOffset(HFileBlock.java:1559)
        at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderImpl.readBlockDataInternal(HFileBlock.java:1771)
        at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderImpl.readBlockData(HFileBlock.java:1594)
        at org.apache.hadoop.hbase.io.hfile.HFileReaderImpl.readBlock(HFileReaderImpl.java:1488)
        at org.apache.hadoop.hbase.io.hfile.HFileReaderImpl$1.run(HFileReaderImpl.java:278)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
      

      Size on disk calculations seem to get messed up due to encryption. Possible fixes can be:

      • if file is encrypted with FileStatus#isEncrypted() and do not prefetch.
      • document that hbase.rs.prefetchblocksonopen cannot be true if file is encrypted.

        Attachments

        1. hbase-20403.patch
          4 kB
          Todd Lipcon
        2. hbase-20403.patch
          4 kB
          Todd Lipcon

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              • Assignee:
                tlipcon Todd Lipcon
                Reporter:
                uagashe Umesh Agashe
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                Dates

                • Created:
                  Updated:
                  Resolved: