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Hadoop QA commented on HDFS-6475: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12647850/HDFS-6475.001.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7026//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7026//console This message is automatically generated. > WebHdfs clients fail without retry because incorrect handling of > StandbyException > --------------------------------------------------------------------------------- > > Key: HDFS-6475 > URL: https://issues.apache.org/jira/browse/HDFS-6475 > Project: Hadoop HDFS > Issue Type: Bug > Components: ha, webhdfs > Affects Versions: 2.4.0 > Reporter: Yongjun Zhang > Assignee: Yongjun Zhang > Attachments: HDFS-6475.001.patch > > > With WebHdfs clients connected to a HA HDFS service, the delegation token is > previously initialized with the active NN. > When clients try to issue request, the NN it contacts is stored in a map > returned by DFSUtil.getNNServiceRpcAddresses(conf). And the client contact > the NN based on the order, so likely the first one it runs into is StandbyNN. > If the StandbyNN doesn't have the updated client crediential, it will throw a > s SecurityException that wraps StandbyException. > The client is expected to retry another NN, but due to the insufficient > handling of SecurityException mentioned above, it failed. > Example message: > {code} > {RemoteException={message=Failed to obtain user group information: > org.apache.hadoop.security.token.SecretManager$InvalidToken: > StandbyException, javaCl > assName=java.lang.SecurityException, exception=SecurityException}} > org.apache.hadoop.ipc.RemoteException(java.lang.SecurityException): Failed to > obtain user group information: > org.apache.hadoop.security.token.SecretManager$InvalidToken: StandbyException > at > org.apache.hadoop.hdfs.web.JsonUtil.toRemoteException(JsonUtil.java:159) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem.validateResponse(WebHdfsFileSystem.java:325) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem.access$700(WebHdfsFileSystem.java:107) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.getResponse(WebHdfsFileSystem.java:635) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:542) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem.run(WebHdfsFileSystem.java:431) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getHdfsFileStatus(WebHdfsFileSystem.java:685) > at > org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getFileStatus(WebHdfsFileSystem.java:696) > at kclient1.kclient$1.run(kclient.java:64) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:356) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1528) > at kclient1.kclient.main(kclient.java:58) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at org.apache.hadoop.util.RunJar.main(RunJar.java:212) > {code} -- This message was sent by Atlassian JIRA (v6.2#6252)