jiasheng55 opened a new pull request #11331: [FLINK-15447][yarn] Add config to 
define 'java.io.tmpdir' property of…
URL: https://github.com/apache/flink/pull/11331
 
 
   … Yarn containers
   
   ## What is the purpose of the change
   
   Currently, the `java.io.tmpdir` property of Flink Yarn containers is set to 
the default value, which is "/tmp". This directory is shared by all processes 
and not cleaned automatically by Yarn, as a result, the users may encounter 
exceptions caused by a full "/tmp" directory.
   
   This PR aims to enable configuring the `java.io.tmpdir` property of  Yarn 
containers.
   
   ## Brief change log
   
   *(for example:)*
     - Add a configuration named "yarn.container.tmpdir" to 
`YarnConfigOptions`, with a default value "/tmp", which is consistent with the 
previous behavior.
     - Add "-Djava.io.tmpdir=xxxx" options to Java start command, with the 
value configured in the above option.
   
   ## Verifying this change
   
   This change is already covered by existing tests, such as 
`org.apache.flink.yarn.YarnClusterDescriptorTest`. This test is updated 
accordingly.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (**yes, Yarn 
deployment**)
     - The S3 file system connector: (no)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (**yes**)
     - If yes, how is the feature documented? (JavaDocs)
   

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