[jira] [Created] (FLINK-8519) FileAlreadyExistsException on Start Flink Session

["Hai Zhou UTC+8 (JIRA)" <ji...@apache.org>]

Hai Zhou UTC+8 created FLINK-8519:
-------------------------------------

             Summary: FileAlreadyExistsException on Start Flink Session 
                 Key: FLINK-8519
                 URL: https://issues.apache.org/jira/browse/FLINK-8519
             Project: Flink
          Issue Type: Bug
          Components: YARN
    Affects Versions: 1.5.0
            Reporter: Hai Zhou UTC+8
             Fix For: 1.5.0


*steps to reproduce:*
 1. build flink from source , git commit: c1734f4
 2. run script:
source /path/hadoop/bin/hadoop_user_login.sh hadoop-launcher;
export YARN_CONF_DIR=/path/hadoop/etc/hadoop;
export HADOOP_CONF_DIR=/path/hadoop/etc/hadoop;
export JVM_ARGS="-Djava.security.krb5.conf=${HADOOP_CONF_DIR}/krb5.conf"; 
/path/flink-1.5-SNAPSHOT/bin/yarn-session.sh -D yarn.container-start-command-template="/usr/local/jdk1.8.0_112/bin/java %%jvmmem%% %%jvmopts%% %%logging%% %%class%% %%args%% %%redirects%%" -n 4 -nm job_name -qu root.rt.flink -jm 1024 -tm 4096 -s 4 -d
 
 *error infos:*

2018-01-27 00:51:12,841 ERROR org.apache.flink.yarn.cli.FlinkYarnSessionCli - Error while running the Flink Yarn session.
 java.lang.reflect.UndeclaredThrowableException
 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1571)
 at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
 at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:786)
 Caused by: org.apache.flink.client.deployment.ClusterDeploymentException: Couldn't deploy Yarn session cluster
 at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:389)
 at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:594)
 at org.apache.flink.yarn.cli.FlinkYarnSessionCli.lambda$main$2(FlinkYarnSessionCli.java:786)
 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:1556)
 ... 2 more
 Caused by: org.apache.hadoop.fs.FileAlreadyExistsException: Path /user already exists as dir; cannot create link here
 at org.apache.hadoop.fs.viewfs.InodeTree.createLink(InodeTree.java:244)
 at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:334)
 at org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:161)
 at org.apache.hadoop.fs.viewfs.ViewFileSystem.initialize(ViewFileSystem.java:161)
 at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2397)
 at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89)
 at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2431)
 at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2413)
 at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368)
 at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:167)
 at org.apache.flink.yarn.AbstractYarnClusterDescriptor.startAppMaster(AbstractYarnClusterDescriptor.java:656)
 at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:485)
 at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:384)
 ... 7 more



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