HDFS-6047 TestPread NPE inside in DFSInputStream hedgedFetchBlockByteRange (stack)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1574206 13f79535-47bb-0310-9956-ffa450edef68
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@ -281,6 +281,9 @@ Release 2.4.0 - UNRELEASED
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HDFS-6053. Fix TestDecommissioningStatus and TestDecommission in branch-2.
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(jing9)
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HDFS-6047 TestPread NPE inside in DFSInputStream hedgedFetchBlockByteRange
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(stack)
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BREAKDOWN OF HDFS-5698 SUBTASKS AND RELATED JIRAS
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HDFS-5717. Save FSImage header in protobuf. (Haohui Mai via jing9)
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@ -1177,8 +1177,11 @@ implements ByteBufferReadable, CanSetDropBehind, CanSetReadahead,
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// exception already handled in the call method. getFirstToComplete
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// will remove the failing future from the list. nothing more to do.
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}
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// We got here if exception. Ignore this node on next go around.
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ignored.add(chosenNode.info);
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// We got here if exception. Ignore this node on next go around IFF
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// we found a chosenNode to hedge read against.
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if (chosenNode != null && chosenNode.info != null) {
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ignored.add(chosenNode.info);
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}
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}
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// executed if we get an error from a data node
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block = getBlockAt(block.getStartOffset(), false);
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