[ACCUMULO-875] add list compactions command to shell

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Assignee: Keith Turner
• Reporter: Keith Turner
• Created: 26/Nov/12 22:10
• Updated: 25/Jan/13 05:28
• Resolved: 18/Jan/13 22:40

Description

The shell currently has a list scans command which is very useful for debugging. Another command that would be useful is list compactions.

The things that would be useful to know about a running compaction are the following :

• Tablet server
• Age
• State (if showing queued compactions)
• Type (User, Chop, System, Idle)
• Tablet
• Iterator info (iterators could have changed since it started and there are per compaction iterators)
• Input files
• Output file
• Rate
• Key/values read so far (could do bytes also)
• Key/values written so far (could do bytes also)
• Locality group compacting

Could consider using JMX to collect this info from tablet servers. List scans currently uses a thrift call to get its info from tablet servers. Making the info available via JMX would enable other tools to use the information.