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[FIXED] Fixed deadlock when checkAndSync was being called as part of storing message #4411

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merged 3 commits into from Aug 21, 2023

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derekcollison
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We violated the locking pattern, so we now make sure we do this in a separate Go routine and put checks to only run it once.

Signed-off-by: Derek Collison derek@nats.io

…message.

We violated the locking pattern, so we now make sure we do this in a separate Go routine and put checks to only run it once.

Signed-off-by: Derek Collison <derek@nats.io>
Signed-off-by: Derek Collison <derek@nats.io>
@derekcollison derekcollison requested a review from a team as a code owner August 21, 2023 19:16
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@wallyqs wallyqs left a comment

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LGTM

if !jsa.sync.CompareAndSwap(false, true) {
return
}
defer jsa.sync.Store(true)
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Should the defer be back to false?

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Yes good catch, thanks! Will update.

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Fixed

Signed-off-by: Derek Collison <derek@nats.io>
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@neilalexander neilalexander left a comment

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LGTM!

@derekcollison derekcollison merged commit 6e3ae20 into main Aug 21, 2023
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@derekcollison derekcollison deleted the jsa-deadlock branch August 21, 2023 22:28
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3 participants