@Saravana V As we do not have the complete stacktrace of the error hence i am assuming that the last line of the error is : File "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/spark_service.py", line 44, in make_tarfile os.chmod(parent_dir, 0711) Which indicates that when ambari is trying to start the Spark2 history server then at the time when it is failing.. it is trying to change the directory "/tmp/spark2" permission to 0711 , So i will suggest you to first check if that directory exist on the Spark2 History server host? Please try the following two approaches to see if it works: 1. Try Creating it on your own like following: # mkdir /tmp/spark2 # chmod -R 711 /tmp/spark2 # ls -ld /tmp/spark2 drwx--x--x. 2 root root 43 Mar 28 23:15 /tmp/spark2 1. If the directory already exist there then try to remove it and then start the component. . Please let us know if you are running the ambari agent on that host as "Non Root" user by any chance? If yes then have you followed the steps mentioned in https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.1.5/bk_ambari-security/content/how_to_configure_an_ambari_agent_for_non-root.html ... View more

@Cathy Liu Do you have enough free memory on your sandbox/Virtual Box? # free -m . If not then you might want to stop some of the services that you are not currently using like Zeppelin, Oozie, HBase and then see if it works without hanging. ... View more

@Michael Bronson Looks like the problem is with your hostname. "master01.bx_hhtyr8" Can you please try a hostname which does not have Underscore? Please see the "Restrictions on valid hostnames" section from: https://en.wikipedia.org/wiki/Hostname link says While a hostname may not contain other characters, such as the underscore character (_), other DNS names may contain the underscore. . ... View more

@Saravana V Can you please elaborate more on which changes are not getting reflected? How are you verifying that the changes are not getting reflected? Do you see an icon in the ambari UI "Restart Required" (a small yellow refresh icon) on the components on which you made the configuration changes? Have you restart those components so that the config changes will be pushed to the host in which the components are running? ... View more