[ https://issues.apache.org/jira/browse/HDFS-11913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Weiwei Yang updated HDFS-11913: ------------------------------- Attachment: HDFS-11913-HDFS-7240.001.patch > Ozone: TestKeySpaceManager#testDeleteVolume fails > ------------------------------------------------- > > Key: HDFS-11913 > URL: https://issues.apache.org/jira/browse/HDFS-11913 > Project: Hadoop HDFS > Issue Type: Bug > Components: ozone > Reporter: Weiwei Yang > Assignee: Weiwei Yang > Attachments: HDFS-11913-HDFS-7240.001.patch > > > HDFS-11774 introduces an UT failure, > {{TestKeySpaceManager#testDeleteVolume}}, error as below > {noformat} > java.util.NoSuchElementException > at > org.fusesource.leveldbjni.internal.JniDBIterator.peekNext(JniDBIterator.java:84) > at > org.fusesource.leveldbjni.internal.JniDBIterator.next(JniDBIterator.java:98) > at > org.fusesource.leveldbjni.internal.JniDBIterator.next(JniDBIterator.java:45) > at > org.apache.hadoop.ozone.ksm.MetadataManagerImpl.isVolumeEmpty(MetadataManagerImpl.java:221) > at > org.apache.hadoop.ozone.ksm.VolumeManagerImpl.deleteVolume(VolumeManagerImpl.java:294) > at > org.apache.hadoop.ozone.ksm.KeySpaceManager.deleteVolume(KeySpaceManager.java:340) > at > org.apache.hadoop.ozone.protocolPB.KeySpaceManagerProtocolServerSideTranslatorPB.deleteVolume(KeySpaceManagerProtocolServerSideTranslatorPB.java:200) > at > org.apache.hadoop.ozone.protocol.proto.KeySpaceManagerProtocolProtos$KeySpaceManagerService$2.callBlockingMethod(KeySpaceManagerProtocolProtos.java:22742) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:522) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:867) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:813) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1965) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2659) > {noformat} > this is caused by a buggy code in {{MetadataManagerImpl#isVolumeEmpty}}, > there are 2 issues need to be fixed > # Iterate next element will throw this exception if it doesn't have next. > This always fail when a volume is empty. > # The code was checking if the first bucket name start with "/volume_name", > this will return a wrong value if I have several empty volumes with same > prefix, e.g "/volA/", "/volAA/". Such case {{isVolumeEmpty}} will return > false as the next element from "/volA/" is not a bucket, it's another volume > "/volAA/" but matches the prefix. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org