Daniel Laszlo Magyar created FLINK-16305:
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Summary: 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
Affects Versions: 1.10.0
Reporter: Daniel Laszlo Magyar
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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