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From madhav Kelkar <madhav.kel...@gmail.com>
Subject Flink CLI does not return after submitting yarn job in detached mode
Date Wed, 15 Aug 2018 21:00:58 GMT
Hi there,

    I am trying to run a single flink job on YARN in detached mode. as per
the docs for flink 1.4.2, I am using -yd to do that.

The problem I am having is the flink bash script doesn't terminate
execution and return until I press control + c. In detached mode, I would
expect the flink CLI to return as soon as yarn job is submitted. is there
something I am missing? here is exact output I get -



./flink-1.4.2/bin/flink run -m yarn-cluster -yd -yn 2 -yqu "default"  -ytm
> 2048 myjar.jar \
> ....program arguments omitted
>
>
> Using the result of 'hadoop classpath' to augment the Hadoop classpath:
> /Users/makelkar/work/hadoop-2.7.3/etc/hadoop:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/common/lib/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/common/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/hdfs:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/hdfs/lib/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/hdfs/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/yarn/lib/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/yarn/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/mapreduce/lib/*:/Users/makelkar/work/hadoop-2.7.3/share/hadoop/mapreduce/*:/Users/makelkar/work/hadoop-2.7.3/contrib/capacity-scheduler/*.jar
> 2018-08-15 14:39:36,873 INFO
>  org.apache.flink.yarn.cli.FlinkYarnSessionCli                 - No path
> for the flink jar passed. Using the location of class
> org.apache.flink.yarn.YarnClusterDescriptor to locate the jar
> 2018-08-15 14:39:36,873 INFO
>  org.apache.flink.yarn.cli.FlinkYarnSessionCli                 - No path
> for the flink jar passed. Using the location of class
> org.apache.flink.yarn.YarnClusterDescriptor to locate the jar
> 2018-08-15 14:39:36,921 INFO  org.apache.hadoop.yarn.client.RMProxy
>                   - Connecting to ResourceManager at /0.0.0.0:8032
> 2018-08-15 14:39:37,226 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - Cluster specification:
> ClusterSpecification{masterMemoryMB=1024, taskManagerMemoryMB=2048,
> numberTaskManagers=2, slotsPerTaskManager=1}
> 2018-08-15 14:39:37,651 WARN  org.apache.flink.yarn.YarnClusterDescriptor
>                   - The configuration directory
> ('/Users/makelkar/work/flink/flink-1.4.2/conf') contains both LOG4J and
> Logback configuration files. Please delete or rename one of them.
> 2018-08-15 14:39:37,660 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/conf/logback.xml to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/logback.xml
>
> 2018-08-15 14:39:37,986 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/lib/log4j-1.2.17.jar to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/lib/log4j-1.2.17.jar
> 2018-08-15 14:39:38,011 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/lib/flink-dist_2.11-1.4.2.jar
> to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/lib/flink-dist_2.11-1.4.2.jar
> 2018-08-15 14:39:38,586 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/lib/flink-python_2.11-1.4.2.jar
> to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/lib/flink-python_2.11-1.4.2.jar
> 2018-08-15 14:39:38,603 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/conf/log4j.properties to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/log4j.properties
>
> 2018-08-15 14:39:39,002 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> file:/Users/makelkar/work/flink/flink-1.4.2/lib/flink-dist_2.11-1.4.2.jar
> to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/flink-dist_2.11-1.4.2.jar
> 2018-08-15 14:39:39,401 INFO  org.apache.flink.yarn.Utils
>                   - Copying from
> /var/folders/b6/_t_6q0vs3glcggp_8rgyxxl40000gn/T/application_1534188161088_0019-flink-conf.yaml8441703337078262150.tmp
> to
> hdfs://localhost:9000/user/makelkar/.flink/application_1534188161088_0019/application_1534188161088_0019-flink-conf.yaml8441703337078262150.tmp
> 2018-08-15 14:39:39,836 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - Submitting application master
> application_1534188161088_0019
> 2018-08-15 14:39:39,858 INFO
>  org.apache.hadoop.yarn.client.api.impl.YarnClientImpl         - Submitted
> application application_1534188161088_0019
> 2018-08-15 14:39:39,858 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - Waiting for the cluster to be allocated
> 2018-08-15 14:39:39,859 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - Deploying cluster, current state ACCEPTED
> 2018-08-15 14:39:47,733 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - YARN application has been deployed successfully.
> 2018-08-15 14:39:47,733 INFO  org.apache.flink.yarn.YarnClusterDescriptor
>                   - The Flink YARN client has been started in detached
> mode. In order to stop Flink on YARN, use the following command or a YARN
> web interface to stop it:
> yarn application -kill application_1534188161088_0019
> Please also note that the temporary files of the YARN session in the home
> directoy will not be removed.
> Cluster started: Yarn cluster with application id
> application_1534188161088_0019
> Using address localhost:51252 to connect to JobManager.
> JobManager web interface address
> http://localhost:8088/proxy/application_1534188161088_0019/
> Using the parallelism provided by the remote cluster (2). To use another
> parallelism, set it at the ./bin/flink client.
> Starting execution of program
> 2018-08-15 14:39:47,757 INFO  org.apache.flink.yarn.YarnClusterClient
>                   - Starting program in interactive mode
>


I have to press cntrl + c to kill this shell script. When I do that, the
program prints messages below -

2018-08-15 14:39:56,332 INFO  org.apache.flink.yarn.YarnClusterClient
>                 - Shutting down YarnClusterClient from the client shutdown
> hook
> 2018-08-15 14:39:56,333 INFO  org.apache.flink.yarn.YarnClusterClient
>                   - Disconnecting YarnClusterClient from ApplicationMaster
>

Thanks,
Madhav.

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