HDFS-2012. Balancer incorrectly treats nodes whose utilization equals avgUtilization. Contributed by Uma Maheswara Rao G.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1183457 13f79535-47bb-0310-9956-ffa450edef68
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@ -1733,6 +1733,9 @@ Release 0.22.0 - Unreleased
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HDFS-2290. Block with corrupt replica is not getting replicated.
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HDFS-2290. Block with corrupt replica is not getting replicated.
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(Benoy Antony via shv)
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(Benoy Antony via shv)
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HDFS-2012. Balancer incorrectly treats nodes whose utilization equals
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avgUtilization. (Uma Maheswara Rao G via shv)
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Release 0.21.1 - Unreleased
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Release 0.21.1 - Unreleased
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HDFS-1466. TestFcHdfsSymlink relies on /tmp/test not existing. (eli)
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HDFS-1466. TestFcHdfsSymlink relies on /tmp/test not existing. (eli)
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@ -1261,12 +1261,12 @@ private boolean isOverUtilized(BalancerDatanode datanode) {
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return datanode.utilization > (policy.getAvgUtilization()+threshold);
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return datanode.utilization > (policy.getAvgUtilization()+threshold);
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}
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}
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/* Return true if the given datanode is above average utilized
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/* Return true if the given datanode is above or equal to average utilized
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* but not overUtilized */
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* but not overUtilized */
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private boolean isAboveAvgUtilized(BalancerDatanode datanode) {
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private boolean isAboveAvgUtilized(BalancerDatanode datanode) {
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final double avg = policy.getAvgUtilization();
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final double avg = policy.getAvgUtilization();
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return (datanode.utilization <= (avg+threshold))
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return (datanode.utilization <= (avg+threshold))
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&& (datanode.utilization > avg);
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&& (datanode.utilization >= avg);
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}
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}
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/* Return true if the given datanode is underUtilized */
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/* Return true if the given datanode is underUtilized */
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