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https://issues.apache.org/jira/browse/FLINK-16305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17046975#comment-17046975
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Daniel Laszlo Magyar commented on FLINK-16305:
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Thank you guys for your insights, much appreciated. I don't have the fix yet
and wasn't aware of the possibility of leveraging {{ExecutorCLI}}, I'm
definitely going to test it, thanks [~fly_in_gis] for the pointer!
Either way, I would like to leave FlinkYarnSessionCli in a bit better shape and
at the very least check if an executor is configured already explicitly and not
overwrite it to yarn-session.
> FlinkYarnSessionClI ignores target executor and uses yarn-session if YARN
> properties file is present
> ----------------------------------------------------------------------------------------------------
>
> Key: FLINK-16305
> URL: https://issues.apache.org/jira/browse/FLINK-16305
> Project: Flink
> Issue Type: Bug
> Components: Client / Job Submission, Command Line Client
> Affects Versions: 1.10.0
> Reporter: Daniel Laszlo Magyar
> Assignee: Daniel Laszlo Magyar
> Priority: Major
>
> The presence of the hidden YARN property file (which contains the last
> started YARN session’s application id), causes the cli to ignore the
> {{execution.target}} property set in the {{conf/flink-conf.yaml}}
> configuration file, which leads to unexpected behaviour at the time of job
> submission via cli, e.g. when using {{flink run}} or SQL client.
> The code that ignores the execution target if the YARN application id is set
> in the hidden property file is at
> [https://github.com/apache/flink/blob/release-1.10/flink-yarn/src/main/java/org/apache/flink/yarn/cli/FlinkYarnSessionCli.java#L337-L351].
>
> Reproduction steps:
> • start flink yarn session via {{./bin/yarn-session.sh -d}}, this writes the
> application id to {{/tmp/.yarn-properties-root}}
> • set {{execution.target: yarn-per-job}} in
> {{/etc/flink/conf/flink-conf.yaml}}
> • enable debug logging
> • run a flink job e.g. {{flink run -d -p 2 examples/streaming/WordCount.jar
> --input README.txt}}
> • the logs below show that even though the {{execution.target}} property is
> read properly, {{FlinkYarnSessionCli}} is chosen and the execution.target is
> reset to yarn-session
> {code:java}
> 20/02/26 12:14:24 INFO configuration.GlobalConfiguration: Loading
> configuration property: execution.target, yarn-per-job
> ...
> 20/02/26 12:14:24 INFO cli.FlinkYarnSessionCli: Found Yarn properties file
> under /tmp/.yarn-properties-root.
> 20/02/26 12:14:24 DEBUG fs.FileSystem: Loading extension file systems via
> services
> 20/02/26 12:14:24 DEBUG cli.CliFrontend: Custom commandlines:
> [org.apache.flink.yarn.cli.FlinkYarnSessionCli@43df23d3,
> org.apache.flink.client.cli.ExecutorCLI@6d60fe40,
> org.apache.flink.client.cli.DefaultCLI@792b749c]
> 20/02/26 12:14:24 DEBUG cli.CliFrontend: Checking custom commandline
> org.apache.flink.yarn.cli.FlinkYarnSessionCli@43df23d3, isActive: true
> ...
> 20/02/26 12:14:25 DEBUG cli.CliFrontend: Effective executor configuration:
> {...execution.target=yarn-session, ....}
> 20/02/26 12:14:25 INFO client.ClientUtils: Starting program (detached: true)
> {code}
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