[BOOKKEEPER-962] Add more journal timing stats

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 4.5.0
• Assignee: Matteo Merli
• Reporter: Matteo Merli
• Created: 02/Nov/16 20:50
• Updated: 12/Nov/16 13:12
• Resolved: 12/Nov/16 02:38

Description

It is useful to know the sync latency on the journal to identify disk/filesystem
related latency spikes that will cause all the entries to queue up. In the same
line, it's useful to track the amount of time spent in the journal queue.

Issue Links

• links to: GitHub Pull Request #70