Kihwal Lee 5cb80992fb HDFS-9178. Slow datanode I/O can cause a wrong node to be marked bad. Contributed by Kihwal Lee.
(cherry picked from commit 99e5204ff5326430558b6f6fd9da7c44654c15d7)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
	hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestClientProtocolForPipelineRecovery.java
2015-10-07 10:24:55 -05:00
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