[BIGTOP-729] zookeeper initd script status doesn't work

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Fix Version/s: backlog
• Component/s: Init scripts
• Assignee: Roman Shaposhnik
• Reporter: Brian Sutherland
• Created: 05/Oct/12 16:42
• Updated: 30/Apr/13 04:26

Description

I have a situation where puppet is continually attempting to restart zookeeper. It appears as if /etc/init.d/zookeeper-server status returns the wrong answer in some cases. I can workaround this by setting the COLUMNS environment variable just before the ps in hadoop_is_process_alive().

What is actually setting (or unsetting) this is a mystery, but I don't think its right for the init script to break.

$ COLUMNS=80 ps -fp 2539 | grep 2539 | grep zookeeper >/dev/null ; echo $?
1
$ COLUMNS=1000 ps -fp 2539 | grep 2539 | grep zookeeper >/dev/null ; echo $?
0

It seems to me as if this method of using ps to check the daemon status is too fragile.