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From Niels Basjes <Ni...@basjes.nl>
Subject Running multiple jobs on yarn (without yarn-session)
Date Thu, 25 Aug 2016 10:04:23 GMT
Hi,

I created a small application that needs to run multiple (batch) jobs on
Yarn and then terminate.
In this case I'm exporting data from a list of HBase tables

I essentially do right now the following:

flink run -m yarn-cluster -yn 10  bla.jar ...

And in my main I do

foreach thing I need to do {
   ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
   env. ... define the batch job.
   env.execute
}

In the second job I submit I get an exception:
java.lang.RuntimeException: Unable to tell application master to stop once
the specified job has been finised
at
org.apache.flink.yarn.YarnClusterClient.stopAfterJob(YarnClusterClient.java:184)
at
org.apache.flink.yarn.YarnClusterClient.submitJob(YarnClusterClient.java:202)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:389)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:376)
at
org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:61)
at com.bol.tools.hbase.export.Main.runSingleTable(Main.java:220)
at com.bol.tools.hbase.export.Main.run(Main.java:81)
at com.bol.tools.hbase.export.Main.main(Main.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:509)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:403)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:331)
at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:775)
at org.apache.flink.client.CliFrontend.run(CliFrontend.java:251)
at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:995)
at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:992)
at
org.apache.flink.runtime.security.SecurityUtils$1.run(SecurityUtils.java:56)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
at
org.apache.flink.runtime.security.SecurityUtils.runSecured(SecurityUtils.java:53)
at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:992)
at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1046)
Caused by: java.util.concurrent.TimeoutException: Futures timed out after
[10000 milliseconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)
at
scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:107)
at scala.concurrent.Await.result(package.scala)
at
org.apache.flink.yarn.YarnClusterClient.stopAfterJob(YarnClusterClient.java:182)
... 25 more


How do I (without using yarn-session) tell the YarnClusterClient to simply
'keep running because there will be more jobs'?

If I run this same code in a yarn-session it works but then I have the
troubles of starting a (detached yarn-session) AND to terminate that thing
again after my jobs have run.

-- 
Best regards / Met vriendelijke groeten,

Niels Basjes

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