Nikita Amelchev created IGNITE-29277:
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Summary: Add a histogram of currently held explicit locks
Key: IGNITE-29277
URL: https://issues.apache.org/jira/browse/IGNITE-29277
Project: Ignite
Issue Type: Task
Reporter: Nikita Amelchev
Assignee: Nikita Amelchev
{{MaxExplicitLockHoldTime}} reports only the longest hold time among the
explicit locks currently held, and {{ExplicitLockHoldTimeHistogram}} accounts
for a lock only after it is released. So there is no way to see how many locks
are being held for too long right now: a single forgotten lock cannot be told
apart from a mass leak, and an alert cannot be set on the number of such locks.
A histogram of hold times of the currently held locks would show it, with the
threshold of a long-held lock configured as the histogram bound.
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