Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-1346

DFSClient receives out of order packet ack

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    • Hadoop Flags:
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      Description

      When running 0.20 patched with HDFS-101, we sometimes see an error as follow:
      WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor exception for block blk_-2871223654872350746_21421120java.io.IOException: Responseprocessor: Expecting seq
      no for block blk_-2871223654872350746_21421120 10280 but received 10281
      at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2570)

      This indicates that DFS client expects an ack for packet N, but receives an ack for packet N+1.

      1. HDFS-1346.20-security.1.patch
        2 kB
        Jitendra Nath Pandey
      2. blockrecv-diff.txt
        4 kB
        Todd Lipcon
      3. outOfOrder.patch
        2 kB
        Hairong Kuang

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            • Assignee:
              Hairong Kuang
              Reporter:
              Hairong Kuang
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                Updated:
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