Yes. That is what I expected. JobManager cannot start the job, due to less task slots. It logs the exception NoResourceAvailableException (it is not shown in stdout; see "log" folder). There is no feedback to Flink CLI that the job could not be started.
Furthermore, WordCount-StormTopology sleeps for 5 seconds and tries to "kill" the job. However, because the job was never started, there is a NotAliveException which in print to stdout. -Matthias On 09/01/2015 10:26 PM, Jerry Peng wrote: > When I run WordCount-StormTopology I get the following exception: > > ~/flink/bin/flink run WordCount-StormTopology.jar > hdfs:///home/jerrypeng/hadoop/hadoop_dir/data/data.txt > hdfs:///home/jerrypeng/hadoop/hadoop_dir/data/results.txt > > org.apache.flink.client.program.ProgramInvocationException: The main > method caused an error. > > at > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:452) > > at > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:353) > > at org.apache.flink.client.program.Client.run(Client.java:278) > > at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:631) > > at org.apache.flink.client.CliFrontend.run(CliFrontend.java:319) > > at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:954) > > at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1004) > > Caused by: NotAliveException(msg:null) > > at > org.apache.flink.stormcompatibility.api.FlinkClient.killTopologyWithOpts(FlinkClient.java:209) > > at > org.apache.flink.stormcompatibility.api.FlinkClient.killTopology(FlinkClient.java:203) > > at > org.apache.flink.stormcompatibility.wordcount.StormWordCountRemoteBySubmitter.main(StormWordCountRemoteBySubmitter.java:80) > > 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:483) > > at > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:437) > > ... 6 more > > > The exception above occurred while trying to run your command. > > > Any idea how to fix this? > > On Tue, Sep 1, 2015 at 3:10 PM, Matthias J. Sax > <mj...@informatik.hu-berlin.de <mailto:mj...@informatik.hu-berlin.de>> > wrote: > > Hi Jerry, > > WordCount-StormTopology uses a hard coded dop of 4. If you start up > Flink in local mode (bin/start-local-streaming.sh), you need to increase > the number of task slots to at least 4 in conf/flink-conf.yaml before > starting Flink -> taskmanager.numberOfTaskSlots > > You should actually see the following exception in > log/flink-...-jobmanager-...log > > > NoResourceAvailableException: Not enough free slots available to > run the job. You can decrease the operator parallelism or increase > the number of slots per TaskManager in the configuration. > > WordCount-StormTopology does use StormWordCountRemoteBySubmitter > internally. So, you do use it already ;) > > I am not sure what you mean by "get rid of KafkaSource"? It is still in > the code base. Which version to you use? In flink-0.10-SNAPSHOT it is > located in submodule "flink-connector-kafka" (which is submodule of > "flink-streaming-connector-parent" -- which is submodule of > "flink-streamping-parent"). > > > -Matthias > > > On 09/01/2015 09:40 PM, Jerry Peng wrote: > > Hello, > > > > I have some questions regarding how to run one of the > > flink-storm-examples, the WordCountTopology. How should I run the > job? > > On github its says I should just execute > > bin/flink run example.jar but when I execute: > > > > bin/flink run WordCount-StormTopology.jar > > > > nothing happens. What am I doing wrong? and How can I run the > > WordCounttopology via StormWordCountRemoteBySubmitter? > > > > Also why did you guys get rid of the KafkaSource class? What is > the API > > now for subscribing to a kafka source? > > > > Best, > > > > Jerry > >
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