Hello @Shelton    Any suggestions ? My only doubt is, As other nodemanagers are running fine in the cluster why these newly added nodemanagers were going to unknown state?   Regards, Vinod ... View more

Hello @Shelton    Yes we are using YARN and other Nodemanagers are up and running with same configurations but for newly added nodes we are facing above logs and they are going to unknown state.   Yes i verified the above parameter but i dont see the above parameter but in yarn configurations page, I can see " Enable Shuffle Auxiliary Service " was enabled.   Please suggest me your comments.   Thanks, Vinod ... View more

Hello @rblough    First of all thank you so much for your response..!!   1. The X and Y environments are having different HBase versions. 2. HBase X version is 1.3.1 and HBase Y Version is 1.0.0 3. We are not clearing the table but following below steps,   echo "disable '$1'" | hbase shell echo "restore_snapshot '$1_SNAPSHOT_$DATE'" | hbase shell echo "enable '$1'" | hbase shell   Daily we are doing the same but sometimes we are seeing the counts mismatch. So, we are doing truncating and restoring the same snapshots and working fine in Y environment.   Please help us your inputs.   Thanks & Regards, Vinod   ... View more

Hello Team,   Can someone please help me with your inputs.   Best Regards, Vinod ... View more

Hi @Shelton    Could you please help me.   Thanks, Vinod ... View more

Hello Team,   Any help would be appreciated.   Best Regards, Vinod     ... View more

Hello @Shelton    Thanks for your response, I have just installed CDH 6.0.1 with 6 nodes and in another server i have installed docker in edge node.   I dont have any reference to integrate docker with yarn, If you can help me with any steps to integrate docker that would be great.   Thanks, Vinod ... View more

Hello Team,   Can someone please give me your response and help me with this issue.   Regards, Vinod ... View more

Hi @Shelton ,   Thanks for your response and yes i have tried re-genrating key-tab files, But no luck. And the above two servers are master nodes (Zookeeper, journal nodes and other master services are running).   Please let me know if you need any other details.   Thanks, Vinod   ... View more

Hello @Shelton @venkatsambath    Hope you all doing good. None of the configuration files are bundled with our jars and they use our latest updated config files in the cluster only. What i am missing here ? what could be the reason for failing after enabling Kerberos ?   Please do the needful.   Best Regards, Vinod   ... View more

Hey @satz    There is no other process is running at that time and only one job is running and frequently it is failing with below error.   Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException): No lease on /user/hbase/.hbase-snapshot/.tmp/   And the import job is failing. But when i re-ran it is completing with out any bugs.   Please help me with your thoughts.   Thanks, Vinod   ... View more

Hello @Shelton,   There is no logs generated on that time interval. But i will check for yourquestions with my team and get back to you. Thanks for responding.   Best Regards, Vinod ... View more

Hello @venkatsambath @Shelton    Can some one please revert back and that would be great for me.   Best Regards, Vinod       ... View more

Hi @venkatsambath ,   Find below one of our application logs ,     INFO 2020Mar27 01:13:07,422 main com.class.engineering.portfolio.finalresolution.main.MrFinalResolver: Sleeping for >> 300000 ms ERROR 2020Mar27 01:18:16,485 main com.class.engineering.portfolio.finalresolution.main.MrFinalResolver: Exception occurred while checking for isReadyToRun flag >> Can't get the location org.apache.hadoop.hbase.client.RetriesExhaustedException: Can't get the location at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:308) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:149) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:57) at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:293) at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:268) at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:140) at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:135) at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:888) at com.class.engineering.portfolio.creditinghadoop.config.ConfigTbl.readValue(ConfigTbl.java:115) at com.class.engineering.portfolio.creditinghadoop.config.ConfigDao.read(ConfigDao.java:63) at com.class.engineering.portfolio.finalresolution.main.MrFinalResolver.isReadyToRun(MrFinalResolver.java:344) at com.class.engineering.portfolio.finalresolution.main.MrFinalResolver.main(MrFinalResolver.java:116) Caused by: org.apache.hadoop.hbase.exceptions.ConnectionClosingException: Call to hostname003.enterprisenet.org/1.1.1.1:60020 failed on local exception: org.apache.hadoop.hbase.exceptions.ConnectionClosingException: Connection to hostname003.enterprisenet.org/1.1.1.1:60020 is closing. Call id=4045, waitTime=2 at org.apache.hadoop.hbase.ipc.RpcClientImpl.wrapException(RpcClientImpl.java:1243) at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1214) at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:216) at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:300) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.get(ClientProtos.java:31865) at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRowOrBefore(ProtobufUtil.java:1580) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1294) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1126) at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:299) ... 12 more Caused by: org.apache.hadoop.hbase.exceptions.ConnectionClosingException: Connection to hostname003.enterprisenet.org/1.1.1.1:60020 is closing. Call id=4045, waitTime=2 at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.cleanupCalls(RpcClientImpl.java:1033) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.close(RpcClientImpl.java:840) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.run(RpcClientImpl.java:568) ERROR 2020Mar27 01:18:25,554 main com.class.engineering.portfolio.resolution.util.HLogUtil: Exception occured while eriting log message >> Failed 1 action: IOException: 1 time, org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: Failed 1 action: IOException: 1 time, at org.apache.hadoop.hbase.client.AsyncProcess$BatchErrors.makeException(AsyncProcess.java:227) at org.apache.hadoop.hbase.client.AsyncProcess$BatchErrors.access$1700(AsyncProcess.java:207) at org.apache.hadoop.hbase.client.AsyncProcess.waitForAllPreviousOpsAndReset(AsyncProcess.java:1658) at org.apache.hadoop.hbase.client.BufferedMutatorImpl.backgroundFlushCommits(BufferedMutatorImpl.java:208) at org.apache.hadoop.hbase.client.BufferedMutatorImpl.flush(BufferedMutatorImpl.java:183) at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1496) at org.apache.hadoop.hbase.client.HTable.put(HTable.java:1107) at com.class.engineering.portfolio.creditinghadoop.log.HLogTbl.write(HLogTbl.java:102) at com.class.engineering.portfolio.creditinghadoop.log.HLogDao.write(HLogDao.java:50) at com.class.engineering.portfolio.creditinghadoop.log.HLog.writeMsg(HLog.java:20) at com.class.engineering.portfolio.resolution.util.HLogUtil.writeMsg(HLogUtil.java:18) at com.class.engineering.portfolio.finalresolution.main.MrFinalResolver.isReadyToRun(MrFinalResolver.java:358) at com.class.engineering.portfolio.finalresolution.main.MrFinalResolver.main(MrFinalResolver.java:116) INFO 2020Mar27 01:18:25,555 main com.class.engineering.portfolio.finalresolution.main.MrFinalResolver: isReady false. Elapsed time: 18130 ms. INFO 2020Mar27 01:18:25,555 main com.class.engineering.portfolio.finalresolution.main.MrFinalResolver: Sleeping for >> 300000 ms   Please revert back.   Best Regards, Vinod ... View more

Hi @venkatsambath    One problem is resolved, I mean to say i am able to run sample yarn job.   Found that one of server having some permission issue and deleted /disk(1,2,3,4,5)/yarn/nm directory and restarted the nodemanager and ran yarn job. Its worked.   And i tried our application related job and this time getting some different error's,  This job i am running in hostname001 and getting below error and seeing some connection failure to hostname003 server. ERROR 2020Mar27 02:35:46,850 main com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain: org.apache.hadoop.hbase.client.RetriesExhaustedException thrown: Can't get the location org.apache.hadoop.hbase.client.RetriesExhaustedException: Can't get the location at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:308) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:149) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:57) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:293) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:268) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:140) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:135) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:888) ~[DMXSLoader-0.0.31.jar:0.0.31] at com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain.hasStagingData(DMXSLoaderMain.java:304) [DMXSLoader-0.0.31.jar:0.0.31] at com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain.main(DMXSLoaderMain.java:375) [DMXSLoader-0.0.31.jar:0.0.31] Caused by: org.apache.hadoop.hbase.exceptions.ConnectionClosingException: Call to hostname003.enterprisenet.org/10.7.54.13:60020 failed on local exception: org.apache.hadoop.hbase.exceptions.ConnectionClosingException: Connection to hostname003.enterprisenet.org/10.7.54.13:60020 is closing. Call id=2, waitTime=12     Regards, Vinod   ... View more

Hi @venkatsambath    Thanks for your response..! Yes, i have deleted upto usercache and restarted nodemanagers, We installed 10 nodemanagers and find below stats what you asked,   hostname1.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname002.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname003.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname55.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname001.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname003.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname028.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname029.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache hostname054.enterprisenet.org sudo namei -l /disk1/yarn/nm/usercache f: /disk1/yarn/nm/usercache dr-xr-xr-x root root / drwxr-xr-x root root disk1 drwxr-xr-x root root yarn drwxr-xr-x yarn hadoop nm drwxr-xr-x yarn yarn usercache     a. Yes, the hbase gate way is available in the same server. b. Actually its not worked with hbase user. And i have granted the permissions to mcaf  through hbase shell like below,   hbase(main):004:0> grant 'mcaf', 'RWXC' , 'TABLE1' 0 row(s) in 0.6570 seconds hbase(main):005:0> user_permission 'TABLE1' User Namespace,Table,Family,Qualifier:Permission mcaf default,TABLE1,,: [Permission: actions=READ,WRITE,EXEC,CREATE] 1 row(s) in 0.3960 seconds hbase(main):006:0> grant 'mcaf', 'RWXC' , 'TABLE2' 0 row(s) in 0.5780 seconds hbase(main):007:0> user_permission 'TABLE2' User Namespace,Table,Family,Qualifier:Permission mcaf default,TABLE2,,: [Permission: actions=READ,WRITE,EXEC,CREATE] 1 row(s) in 0.4060 seconds   c. I am not find any error or warn messages in HMaster logs while i am querying.   After granting the permissions i have tested my application job and seeing same error messages like above.   Please revert back.   Best Regards, Vinod ... View more

Hi @venkatsambath @Shelton ,   As you said I deleted the cache directories and tried again. But still facing the same issue, Find below error logs and directory structures.     Error Logs: JOB: yarn jar /opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/jars/hadoop-examples.jar teragen 500000000 /tmp/teragen22     20/03/26 11:36:53 INFO mapreduce.Job: Job job_1585236349590_0001 failed with state FAILED due to: Application application_1585236349590_0001 failed 2 times due to AM Container for appattempt_1585236349590_0001_000002 exited with exitCode: -1000 For more detailed output, check application tracking page:http://hostname:8088/proxy/application_1585236349590_0001/Then, click on links to logs of each attempt. Diagnostics: Application application_1585236349590_0001 initialization failed (exitCode=20) with output: main : command provided 0 main : user is mcaf main : requested yarn user is mcaf Failed to create directory /disk1/yarn/nm/usercache/mcaf - No such file or directory Failed to create directory /disk2/yarn/nm/usercache/mcaf - No such file or directory Failed to create directory /disk3/yarn/nm/usercache/mcaf - No such file or directory Failed to create directory /disk4/yarn/nm/usercache/mcaf - No such file or directory Failed to create directory /disk5/yarn/nm/usercache/mcaf - No such file or directory Failing this attempt. Failing the application. 20/03/26 11:36:53 INFO mapreduce.Job: Counters: 0     I give a try for my application job and that is also failed and below are the logs,     ERROR 2020Mar26 11:36:00,863 main com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain: org.apache.hadoop.hbase.client.RetriesExhaustedException thrown: Can't get the location org.apache.hadoop.hbase.client.RetriesExhaustedException: Can't get the location at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:308) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:149) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:57) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:293) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:268) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:140) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:135) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:888) ~[DMXSLoader-0.0.31.jar:0.0.31] at com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain.hasStagingData(DMXSLoaderMain.java:304) [DMXSLoader-0.0.31.jar:0.0.31] at com.class.engineering.portfolio.dmxsloader.main.DMXSLoaderMain.main(DMXSLoaderMain.java:375) [DMXSLoader-0.0.31.jar:0.0.31] Caused by: java.io.IOException: Broken pipe at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:1.7.0_67] at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[?:1.7.0_67] at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:1.7.0_67] at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[?:1.7.0_67] at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:487) ~[?:1.7.0_67] at org.apache.hadoop.net.SocketOutputStream$Writer.performIO(SocketOutputStream.java:63) ~[hadoop-common-2.6.0-cdh5.4.7.jar:?] at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142) ~[hadoop-common-2.6.0-cdh5.4.7.jar:?] at org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:159) ~[hadoop-common-2.6.0-cdh5.4.7.jar:?] at org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:117) ~[hadoop-common-2.6.0-cdh5.4.7.jar:?] at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[?:1.7.0_67] at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) ~[?:1.7.0_67] at java.io.DataOutputStream.flush(DataOutputStream.java:123) ~[?:1.7.0_67] at org.apache.hadoop.hbase.ipc.IPCUtil.write(IPCUtil.java:246) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.IPCUtil.write(IPCUtil.java:234) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.writeRequest(RpcClientImpl.java:895) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.tracedWriteRequest(RpcClientImpl.java:850) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1184) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:216) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:300) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.get(ClientProtos.java:31865) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRowOrBefore(ProtobufUtil.java:1580) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1294) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1126) ~[DMXSLoader-0.0.31.jar:0.0.31] at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:299) ~[DMXSLoader-0.0.31.jar:0.0.31] ... 10 more     Directory structure:   hostname]$ sudo ls -ld /disk1/yarn/nm drwxr-xr-x 4 yarn hadoop 4096 Mar 26 11:37 /disk1/yarn/nm hostname]$ sudo ls -ld /disk1/yarn/ drwxr-xr-x 3 root root 4096 Sep 28 2015 /disk1/yarn/ hostname]$ sudo ls -ld /disk1 drwxr-xr-x 9 root root 4096 Sep 28 2015 /disk1     Please revert back.   Best Regards, Vinod ... 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Hi @Shelton @venkatsambath    Can some one please help me to fix the issue ?   Best Regards, Vinod ... View more

Hi @Shelton ,   I ran above command you shared for removing 's' permissions for the directory. And then i triggered same yarn sample job and facing same issue,   ERROR: 20/03/24 12:29:24 INFO mapreduce.Job: Task Id : attempt_1585066027398_0003_m_000000_1, Status : FAILED Application application_1585066027398_0003 initialization failed (exitCode=255) with output: main : command provided 0 main : user is mcaf main : requested yarn user is mcaf Can't create directory /disk1/yarn/nm/usercache/mcaf/appcache/application_1585066027398_0003 - Permission denied Can't create directory /disk2/yarn/nm/usercache/mcaf/appcache/application_1585066027398_0003 - Permission denied Can't create directory /disk3/yarn/nm/usercache/mcaf/appcache/application_1585066027398_0003 - Permission denied Can't create directory /disk4/yarn/nm/usercache/mcaf/appcache/application_1585066027398_0003 - Permission denied Can't create directory /disk5/yarn/nm/usercache/mcaf/appcache/application_1585066027398_0003 - Permission denied Did not create any app directories     Find below directory structure.   HOSTNAME]$ sudo ls -lrt /disk2/yarn/nm/usercache/mcaf/appcache total 0 HOSTNAME]$ sudo ls -ld /disk2/yarn/nm/usercache/mcaf/appcache drwx--x--- 2 yarn yarn 4096 Mar 4 02:22 /disk2/yarn/nm/usercache/mcaf/appcache HOSTNAME]$ sudo ls -lrt /disk2/yarn/nm/usercache/mcaf total 24 drwx--x--- 493 yarn yarn 20480 Mar 4 01:18 filecache drwx--x--- 2 yarn yarn 4096 Mar 4 02:22 appcache HOSTNAME]$ sudo ls -ld /disk2/yarn/nm/usercache/mcaf drwxr-x--- 4 yarn yarn 4096 Feb 24 01:26 /disk2/yarn/nm/usercache/mcaf HOSTNAME]$ sudo ls -ld /disk2/yarn/nm/usercache/ drwxr-xr-x 3 yarn yarn 4096 Feb 24 01:26 /disk2/yarn/nm/usercache/ HOSTNAME]$ sudo ls -lrt /disk2/yarn/nm/usercache total 4 drwxr-x--- 4 yarn yarn 4096 Feb 24 01:26 mcaf   NOTE: I have modified those permissions in all the servers.   Best Regards, Vinod ... View more

Hello @Shelton ,   Thanks for your immediate response. Find below outputs,   HOSTNAME]$ ls /disk1/yarn/nm/usercache mcaf HOSTNAME]$ ls /disk1/yarn/nm/usercache/mcaf appcache filecache HOSTNAME]$ ls -lrt /disk1/yarn/nm/usercache/mcaf total 20 drwx--x--- 397 yarn yarn 16384 Mar 4 01:18 filecache drwx--x--- 2 yarn yarn 4096 Mar 4 02:22 appcache HOSTNAME]$ ls -lrt /disk1/yarn/nm/usercache total 4 drwxr-s--- 4 mcaf yarn 4096 Feb 24 01:26 mcaf   Q1, If we enable kerberos do we needs to modify permissions to the above directory? And mcaf having sudo access.   Q2, We are using two edgenodes. Can i use the above merged.keytab in another edgenode ? Or do i needs to generate them like what i did in current edgenode ?   Best Regards, Vinod   ... View more