I am trying out flink example as explained in flink docs in a single node yarn cluster.
As mentioned in this discussion HADOOP_CONF_DIR is also set like below before executing the yarn command.
export HADOOP_CONF_DIR=/etc/hadoop/conf
On executing the below command
ubuntu@vrni-platform:~/build-target/flink$ ./bin/flink run-application -t yarn-application ./examples/streaming/TopSpeedWindowing.jar
It is failing with the below errors
The program finished with the following exception:
org.apache.flink.client.deployment.ClusterDeploymentException: Couldn't deploy Yarn Application Cluster
at org.apache.flink.yarn.YarnClusterDescriptor.deployApplicationCluster(YarnClusterDescriptor.java:465)
at org.apache.flink.client.deployment.application.cli.ApplicationClusterDeployer.run(ApplicationClusterDeployer.java:67)
at org.apache.flink.client.cli.CliFrontend.runApplication(CliFrontend.java:213)
at org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1061)
at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1136)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)
at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1136)
Caused by: org.apache.flink.yarn.YarnClusterDescriptor$YarnDeploymentException: The YARN application unexpectedly switched to state FAILED during deployment.
Diagnostics from YARN: Application application_1614159836384_0045 failed 1 times (global limit =2; local limit is =1) due to AM Container for appattempt_1614159836384_0045_000001 exited with exitCode: -1000
Failing this attempt.Diagnostics: [2021-02-24 16:19:39.409]File file:/home/ubuntu/.flink/application_1614159836384_0045/flink-dist_2.12-1.12.1.jar does not exist
java.io.FileNotFoundException: File file:/home/ubuntu/.flink/application_1614159836384_0045/flink-dist_2.12-1.12.1.jar does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:641)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:867)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:631)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:442)
at org.apache.hadoop.yarn.util.FSDownload.verifyAndCopy(FSDownload.java:269)
at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:67)
at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:414)
at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:411)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)
at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:411)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.doDownloadCall(ContainerLocalizer.java:242)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.call(ContainerLocalizer.java:235)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.call(ContainerLocalizer.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
I have made the log level DEBUG and I do see that flink-dist_2.12-1.12.1.jar is getting copied to /home/ubuntu/.flink/application_1614159836384_0045.
2021-02-24 16:19:37,768 DEBUG org.apache.flink.yarn.YarnApplicationFileUploader [] - Got modification time 1614183577000 from remote path file:/home/ubuntu/.flink/application_1614159836384_0045/TopSpeedWindowing.jar
2021-02-24 16:19:37,769 DEBUG org.apache.flink.yarn.YarnApplicationFileUploader [] - Copying from file:/home/ubuntu/build-target/flink/lib/flink-dist_2.12-1.12.1.jar to file:/home/ubuntu/.flink/application_1614159836384_0045/flink-dist_2.12-1.12.1.jar with replication factor 1
I have placed the entire DEBUG logs here.
Nodemanger logs have warnings like below
2021-02-24 16:36:34,219 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices: Got event CONTAINER_INIT for appId application_1614159836384_0047
2021-02-24 16:36:34,220 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: Created localizer for container_1614159836384_0047_01_000001
2021-02-24 16:36:34,222 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: Writing credentials to the nmPrivate file /var/lib/hadoop-yarn/cache/yarn/nm-local-dir/nmPrivate/container_1614159836384_0047_01_000001.tokens
2021-02-24 16:36:34,222 INFO org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Initializing user ubuntu
2021-02-24 16:36:34,224 INFO org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Copying from /var/lib/hadoop-yarn/cache/yarn/nm-local-dir/nmPrivate/container_1614159836384_0047_01_000001.tokens to /var/lib/hadoop-yarn/cache/yarn/nm-local-dir/usercache/ubuntu/appcache/application_1614159836384_0047/container_1614159836384_0047_01_000001.tokens
2021-02-24 16:36:34,224 INFO org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Localizer CWD set to /var/lib/hadoop-yarn/cache/yarn/nm-local-dir/usercache/ubuntu/appcache/application_1614159836384_0047 = file:/var/lib/hadoop-yarn/cache/yarn/nm-local-dir/usercache/ubuntu/appcache/application_1614159836384_0047
2021-02-24 16:36:34,247 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer: Disk Validator: yarn.nodemanager.disk-validator is loaded.
2021-02-24 16:36:34,268 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: { file:/home/ubuntu/.flink/application_1614159836384_0047/flink-dist_2.12-1.12.1.jar, 1614184593000, FILE, null } failed: File file:/home/ubuntu/.flink/application_1614159836384_0047/flink-dist_2.12-1.12.1.jar does not exist
java.io.FileNotFoundException: File file:/home/ubuntu/.flink/application_1614159836384_0047/flink-dist_2.12-1.12.1.jar does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:641)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:867)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:631)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:442)
at org.apache.hadoop.yarn.util.FSDownload.verifyAndCopy(FSDownload.java:269)
at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:67)
at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:414)
at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:411)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)
at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:411)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.doDownloadCall(ContainerLocalizer.java:242)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.call(ContainerLocalizer.java:235)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer$FSDownloadWrapper.call(ContainerLocalizer.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
The entire nodemanger logs are here.
Can someone let me know what is going wrong? Does flink not support single node yarn cluster for development?
There was a configuration issue in my setup. In my setup hadoop-yarn-nodemenager is running with yarn user.
ubuntu@vrni-platform:/tmp/flink$ ps -ef | grep nodemanager
yarn 4953 1 2 05:53 ? 00:11:26 /usr/lib/jvm/java-8-openjdk/bin/java -Dproc_nodemanager -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/lib/heap-dumps/yarn -XX:+ExitOnOutOfMemoryError -Dyarn.log.dir=/var/log/hadoop-yarn -Dyarn.log.file=hadoop-yarn-nodemanager-vrni-platform.log -Dyarn.home.dir=/usr/lib/hadoop-yarn -Dyarn.root.logger=INFO,console -Djava.library.path=/usr/lib/hadoop/lib/native -Xmx512m -Dhadoop.log.dir=/var/log/hadoop-yarn -Dhadoop.log.file=hadoop-yarn-nodemanager-vrni-platform.log -Dhadoop.home.dir=/usr/lib/hadoop -Dhadoop.id.str=yarn -Dhadoop.root.logger=INFO,RFA -Dhadoop.policy.file=hadoop-policy.xml -Dhadoop.security.logger=INFO,NullAppender org.apache.hadoop.yarn.server.nodemanager.NodeManager
I was executing the ./bin/flink command as ubuntu user and yarn user does not have permission to write to ubuntu's home folder in my setup.
ubuntu@vrni-platform:/tmp/flink$ echo ~ubuntu
/home/ubuntu
ubuntu@vrni-platform:/tmp/flink$ echo ~yarn
/var/lib/hadoop-yarn
It appears flink needs permission to write to user's home directory to create a .flink folder even when the job is submitted in yarn. It is working fine for me if I run the flink with yarn user in my setup.
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