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datastax-enterpriseopscenter

DSE upgrade deleted datastax-agent conf folder

I'm running a 3-node cluster in AWS. Yesterday, I upgraded my cluster from DSE 4.7.3 to 4.8.0.

After the upgrade, the datastax-agent service is no longer registered and the /usr/share/datastax-agent/conf folder has been removed.

PRE-UPGRADE: $ ls -alr total 24836 drwxrwxr-x 3 cassandra cassandra 4096 Aug 10 14:57 tmp drwxrwxr-x 2 cassandra cassandra 4096 Aug 10 14:56 ssl drwxrwxr-x 2 cassandra cassandra 4096 Sep 28 15:14 doc -rw-r--r-- 1 cassandra cassandra 25402305 Jul 14 18:55 datastax-agent-5.2.0-standalone.jar drwxrwxr-x 2 cassandra cassandra 4096 Sep 28 18:23 conf drwxrwxr-x 3 cassandra cassandra 4096 Sep 28 18:13 bin drwxr-xr-x 118 root root 4096 Oct 2 18:02 .. drwxrwxr-x 7 cassandra cassandra 4096 Oct 7 19:03 .

POST-UPGRADE: $ ls -al total 24976 drwxr-xr-x 3 cassandra cassandra 4096 Oct 5 20:45 . drwxr-xr-x 114 root root 4096 Oct 5 18:23 .. drwxr-xr-x 3 cassandra cassandra 4096 Oct 5 20:45 bin -rw-r--r-- 1 cassandra cassandra 25562841 Sep 10 20:43 datastax-agent-5.2.1-standalone.jar

Also, /etc/init.d/datastax-agent file has been deleted. I don't know how I'm supposed to start/stop the service now.

Can I restore the files from the rollback directory? What effect will that have?

Solution

  • In this particular case what happened was that the dpkg install found a preexisting /etc/init.d/datastax-agent file and only put /etc/init.d/datastax-agent.fpk.bak into place. A "sudo dpkg -P datastax-agent" followed by a "sudo dpkg -i /usr/share/dse/datastax-agent/datastax-agent_5.2.1_all.deb" fixed the issue. We had to first kill the already running agent processes and then do a service restart.

    Will investigate how that could have happened... that's still a little bit of a mystery to me.