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stack commented on HBASE-10867: ------------------------------- bq. In 0.98 and prior releases, servers[] is of size 10. I don't follow. I see servers set to 10 in all versions. In 0.98: private final static int SLAVES = 10; ... TEST_UTIL.startMiniCluster(SLAVES); .... ServerName servers[] = oldStatus.getServers().toArray(new ServerName[10]); ServerName serverToKill = null; int killIndex = 0; Random random = new Random(System.currentTimeMillis()); ServerName metaServer = TEST_UTIL.getHBaseCluster().getServerHoldingMeta(); LOG.debug("Server holding meta " + metaServer); boolean isNamespaceServer = false; do { // kill a random non-meta server carrying at least one region killIndex = random.nextInt(servers.length); .... In trunk the same. > TestRegionPlacement#testRegionPlacement occasionally fails > ---------------------------------------------------------- > > Key: HBASE-10867 > URL: https://issues.apache.org/jira/browse/HBASE-10867 > Project: HBase > Issue Type: Test > Reporter: Ted Yu > Assignee: Ted Yu > Priority: Minor > Fix For: 0.99.0 > > Attachments: 10867-v1.txt, 10867-v2.txt > > > From > https://builds.apache.org/job/HBase-TRUNK/5047/testReport/org.apache.hadoop.hbase.master/TestRegionPlacement/testRegionPlacement/ > : > {code} > java.lang.ArrayIndexOutOfBoundsException: 10 > at > java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:368) > at > java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:377) > at > org.apache.hadoop.hbase.LocalHBaseCluster.getRegionServer(LocalHBaseCluster.java:224) > at > org.apache.hadoop.hbase.MiniHBaseCluster.getRegionServer(MiniHBaseCluster.java:609) > at > org.apache.hadoop.hbase.master.TestRegionPlacement.killRandomServerAndVerifyAssignment(TestRegionPlacement.java:303) > at > org.apache.hadoop.hbase.master.TestRegionPlacement.testRegionPlacement(TestRegionPlacement.java:270) > {code} > In the setup: > {code} > TEST_UTIL.startMiniCluster(SLAVES); > {code} > where SLAVES is 10. > So when 10 was used in > TEST_UTIL.getHBaseCluster().getRegionServer(killIndex), we would get > ArrayIndexOutOfBoundsException. -- This message was sent by Atlassian JIRA (v6.2#6252)