Details
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Task
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Resolution: Done
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Major - P3
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None
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None
Description
for rc6, add descriptions for currentOp/serverStatus output for lockStats;
acquireCount - Number of times the lock was acquired in the specified mode (regardless of whether the lock acquisition had to wait or not).
acquireWaitCount - Number of times the above lock acqusitions had to wait, because the lock was held in a conflicting mode. This value is always less than the acquireCount.
timeAcquiringMicros - Cummulative time lock aquisitions waited, because the lock was held in a conflicting mode (in microseconds). timeAcquiringMicros/acquireWaitCount gives an approximate average wait time for the particular lock mode.
deadlockCount - Number of times lock acquisitions encountered deadlock when they waited for a lock to be granted. This value should be very low.
Attachments
Issue Links
- documents
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SERVER-15614 Implement locking statistics in db.currentOp and db.serverStatus
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- Closed
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