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Binglin Chang commented on HDFS-6250: ------------------------------------- Hi [~airbots], what Junping points out is correct, the blocks in test file should never move to rack1 whether balancer.id is large or small, it is for reliability, if a replica in rack0 moved to rack1, all the replicas for a block will be in rack1, if rack1 is down, we get a missing block > TestBalancerWithNodeGroup.testBalancerWithRackLocality fails > ------------------------------------------------------------ > > Key: HDFS-6250 > URL: https://issues.apache.org/jira/browse/HDFS-6250 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Kihwal Lee > Assignee: Chen He > Attachments: HDFS-6250-v2.patch, HDFS-6250-v3.patch, HDFS-6250.patch, > test_log.txt > > > It was seen in https://builds.apache.org/job/PreCommit-HDFS-Build/6669/ > {panel} > java.lang.AssertionError: expected:<1800> but was:<1810> > at org.junit.Assert.fail(Assert.java:93) > at org.junit.Assert.failNotEquals(Assert.java:647) > at org.junit.Assert.assertEquals(Assert.java:128) > at org.junit.Assert.assertEquals(Assert.java:147) > at org.apache.hadoop.hdfs.server.balancer.TestBalancerWithNodeGroup > .testBalancerWithRackLocality(TestBalancerWithNodeGroup.java:253) > {panel} -- This message was sent by Atlassian JIRA (v6.2#6252)