Tian Hong Wang created HDFS-4669: ------------------------------------ Summary: org.apache.hadoop.hdfs.server.datanode.TestBlockPoolManager fails using IBM java Key: HDFS-4669 URL: https://issues.apache.org/jira/browse/HDFS-4669 Project: Hadoop HDFS Issue Type: Bug Components: test Affects Versions: 2.0.3-alpha Reporter: Tian Hong Wang Fix For: 2.0.3-alpha
TestBlockPoolManager unit test fails with the following error message using IBM java: testFederationRefresh(org.apache.hadoop.hdfs.server.datanode.TestBlockPoolManager) Time elapsed: 27 sec <<< FAILURE! org.junit.ComparisonFailure: expected:<stop #[1 refresh #2] > but was:<stop #[2 refresh #1] > The root cause is: (1)if we want to remove the first NS, keep the second NS, it should be conf.set(DFSConfigKeys.DFS_NAMESERVICES, ns2), not conf.set(DFSConfigKeys.DFS_NAMESERVICES, ns1). (2)Since HashMap & HashSet store the data in the random order way, so in ibm java & Oracle java, HashMap get the random order <key, value> that causing the random ns1&ns2 value. So in the code, it should use LinkedHashMap & LinkedHashSet to keep the original order. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira