[IMPROVED] Do not hold filestore lock during remove that needs to do IO. #4123
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…nlock fs lock to avoid stalling other activity on other blocks. E.g removing and adding msgs at the same time. Signed-off-by: Derek Collison <derek@nats.io>
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When removing a msg and we need to load the msg block and incur IO, unlock fs lock to avoid stalling other activity on other blocks. E.g removing and adding msgs at the same time.
Signed-off-by: Derek Collison derek@nats.io