[ACCUMULO-3952] bin/accumulo should verify log4j.jar was found

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.7.0
• Fix Version/s: 1.6.4, 1.7.1, 1.8.0
• Component/s: scripts
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 31/Jul/15 17:54
• Updated: 05/Aug/15 16:39
• Resolved: 05/Aug/15 16:39

Description

Just spent a few hours trying to wrangle this one down. Ambari was failing to start all Accumulo components. After digging in, I realized that when Ambari was invoking accumulo, it was failing to find the log4j jar.

It turns out this was a deployment issue where the home directory for the accumulo user was never created and the find command failed:

find: cannot stat current directory: Permission denied

Sadly, I couldn't find this error until I manually edited the accumulo script to remove the 2>/dev/null redirect. We should have been able to realize that we never found the log4j jar and then clearly printed an error and exited instead of leading me on a goosechase by silently proceeding.

Same goes for the slf4j jars.