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https://issues.apache.org/jira/browse/FLINK-29698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620794#comment-17620794
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Weijie Guo commented on FLINK-29698:
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Yes, I agree with you that this is a serious problem.
However, this should already exist in 1.15, perhaps it should not be
considered as a blocker of 1.16? By the way, I am not very clear about the
definition of blocker issue, please feel free to point out my mistakes.
Let's first track the problem in only one ticket(this one or that earlier one
is also fine), and then try to find a solution.
> 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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