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retry the lock operation only when someone else is holding the lock #102

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What this PR does / why we need it:

We were retrying the lock operation for 5 minutes on all the errors. Create()
ends up calling LeaseWithRetries() which has 30 retries with 2 sec sleep.
If kvdb is down, the 5 min wait was causing unnecessary delay. Now, we use
the 5 minutes timeout only when someone is holding the lock.

Which issue(s) this PR fixes (optional)
Closes #

Special notes for your reviewer:

We were retrying the lock operation for 5 minutes on all the errors. Create()
ends up calling LeaseWithRetries() which has 30 retries with 2 sec sleep.
If kvdb is down, the 5 min wait was causing unnecessary delay. Now, we use
the 5 minutes timeout only when someone is holding the lock.

Signed-off-by: Neelesh Thakur <[email protected]>
@pureneelesh pureneelesh requested a review from adityadani May 17, 2021 22:14
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