[OAK-5038] Extend PersistentCacheStats with async queue-related stats

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.10, 1.5.13, 1.6.0
• Component/s: cache, documentmk
• Assignee: Tomek Rękawek
• Reporter: Tomek Rękawek
• Created: 31/Oct/16 14:08
• Updated: 16/Feb/21 09:55
• Resolved: 02/Nov/16 12:39

Description

In order to measure how many put() operations are rejected after implementing OAK-4882 we need to gather three new stats:

• put entries rejected because they have been already read from the persistence cache,
• put entries rejected because they were not used,
• put entries rejected because the queue is full.

The new stats should be disabled by default and enabled by PersistentCacheStats.rejectedPut.

Issue Links

• is duplicated by: OAK-2686 Persistent cache: log activity and timing data, and possible optimizations