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https://issues.apache.org/jira/browse/FLINK-29698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620782#comment-17620782
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Weijie Guo commented on FLINK-29698:
------------------------------------
Maybe this is duplicated with FLINK-28102
> Job Manager fails with FileAlreadyExistsException if java.io.tmpdir points to
> a symbolic link
> ---------------------------------------------------------------------------------------------
>
> Key: FLINK-29698
> URL: https://issues.apache.org/jira/browse/FLINK-29698
> Project: Flink
> Issue Type: Bug
> Components: Runtime / RPC
> Affects Versions: 1.16.0, 1.17.0, 1.15.2
> Reporter: Caizhi Weng
> Priority: Blocker
>
> The {{/tmp}} directory on my PC is a symbolic link.
> {code}
> ls -all /
> (result)
> lrwxr-xr-x 1 root wheel 11 3 25 2019 tmp -> private/tmp
> {code}
> In {{flink-conf.yaml}} if I add
> {code}
> env.java.opts: -Djava.io.tmpdir=/tmp
> {code}
> then job manager fails to start. The exception stack is
> {code}
> 2022-10-20 11:34:34,627 INFO
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint [] - Shutting
> StandaloneSessionClusterEntrypoint down with application status FAILED.
> Diagnostics org.apache.flink.runtime.rpc.exceptions.RpcLoaderException: Could
> not load RpcSystem.
> at org.apache.flink.runtime.rpc.RpcSystem.load(RpcSystem.java:106)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:355)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227)
> at
> org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:28)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:711)
> at
> org.apache.flink.runtime.entrypoint.StandaloneSessionClusterEntrypoint.main(StandaloneSessionClusterEntrypoint.java:59)
> Caused by: java.lang.RuntimeException: Could not initialize RPC system.
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcSystemLoader.loadRpcSystem(AkkaRpcSystemLoader.java:85)
> at org.apache.flink.runtime.rpc.RpcSystem.load(RpcSystem.java:101)
> ... 7 more
> Caused by: java.nio.file.FileAlreadyExistsException: /tmp
> at
> sun.nio.fs.UnixException.translateToIOException(UnixException.java:88)
> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
> at
> sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384)
> at java.nio.file.Files.createDirectory(Files.java:674)
> at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781)
> at java.nio.file.Files.createDirectories(Files.java:727)
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcSystemLoader.loadRpcSystem(AkkaRpcSystemLoader.java:58)
> ... 8 more
> {code}
> There are similar issues in {{PlannerModule}} class of
> {{flink-table-planner-loader}} module and in {{CodeGenLoader}} class of table
> store.
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