Solution provided can be worked on new environment,  If its old environment, then issue can be addressed as below,    NN1 - Started - But its state always in staring - Leave as is and go to NN2 NN2 - Start NN2 - This start will fix this issue ... View more

@Sedat Kestepe no it is not related to mainboard changed ... View more

Thanks for your answer and also for the warning about the version in the stack. Current Spark2 version is 2.2.0. I am going to correct it on question. And also both answers are good news to me. Thanks again. ... View more

Hello @Aditya Sirna Thank you for your answer. I have added the parameter with a value of 0 but got an exception (HDP 2.6.3.0 on CentOS 7.2) 2018-03-20 21:09:48,207 ERROR namenode.FSNamesystem (FSNamesystem.java:<init>(913)) - FSNamesystem initialization failed. java.lang.IllegalArgumentException: Cannot set dfs.namenode.fs-limits.max-directory-items to a value less than 1 or greater than 6400000 Thus, I doubled the old value (4194304) and now it works. Will HDFS be removing the tmp dir? Is there any preset period of configuration for that? Otherwise may tmp dir exceed the new limit? Or may hdfs get OOM exception while cleaning it like i got trying to clean manually? You can check my other question if you have a comment on it. https://community.hortonworks.com/questions/179904/having-issue-with-tmp-directory-removal.html ... View more

@Geoffrey Shelton Okot Unfortunately, I couldn't start HDFS services this way, neither. Thank you very much though. ... View more

I am also getting a problem, i cannot save a notebook (HDP 2.6.5) in the zeppelin ui i am getting: "Couldn't checkpoint note revision: possibly storage doesn't support versioning. Please check the logs for more details." in the log i get: "WARN [2018-07-25 15:18:44,757] ({qtp1786364562-1678} FileSystemNotebookRepo.java[checkpoint]:159) - checkpoint is not implemented for HdfsNotebookRepo" (not Kerberized) can any one help? ... View more

Please refer https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.3/bk_hive-performance-tuning/content/ch_hive-perf-tuning-intro.html Above link have Prerequisite and steps for HiveServer2 Interactive ... View more

You are awesome enough to thank so much! 🙂 I was expecting just to see if the behaviour I see is normal but your explanation to me like teaching to fish instead of giving it. I have learned the procedure instead, how it worked. Thanks again! 😄 ... View more

Thank you 🙂 ... View more

Answer appeared on second comment. Thanks @Arpit Agarwal ! By the way, port number is 1022 On /etc/hadoop/conf/hdfs-site.xml file <property> <name>dfs.datanode.http.address</name> <value>0.0.0.0:1022</value> </property> Yes, my environment is Kerberos enabled. It was already represented on Namenode UI > Datanodes tab > "Http Address" column. ... View more