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Can't recover stream on restart with deleted msg error. #2900

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merged 2 commits into from Mar 4, 2022

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Fixed a bug that would not recover a stream properly after a non-clean shutdown with deleted messages.

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

/cc @nats-io/core

…th deleted messages.

Signed-off-by: Derek Collison <derek@nats.io>
…recovery.

Signed-off-by: Derek Collison <derek@nats.io>
Comment on lines +15253 to +15254
_, err = js.StreamInfo("T")
require_NoError(t, err)
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check for 99 messages and that js.GetMsg("T", 22) fails?

Am I right to assume that that upon recovery the missing fss file should exist again?

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We have hundreds of tests that already do this. I understand where you are coming from and actually started to write that and was like, the stream info message count deleted messages have tests everywhere for over a year. So I say no.

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Meaning I do not believe it buys us anything over the current tests that are in place.

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The bug was in rebuilding the fss state. That file does not actually exists during the server running, only on exit as a short cut on restart.

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Also just as an fyi, I always write the test to fail first and it did with "stream not found", which is what was reported, so as long as the fix had the stream being found I think we are good, IMO.

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lgtm

@derekcollison derekcollison merged commit adfcfdb into main Mar 4, 2022
@derekcollison derekcollison deleted the fss-recover-bug branch March 4, 2022 22:38
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3 participants