make locking more fine-grained on client close #14027
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sayden
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Oct 12, 2019
sayden
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Oct 12, 2019
sayden
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Oct 12, 2019
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@sayden fixed! |
fearful-symmetry
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urso
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Oct 15, 2019
| if err != nil { | ||
| return nil, errors.Wrap(err, "error loading pipeline") | ||
| } | ||
| pm.registerPipeline(pipeline, hashstring) |
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This pattern looks like a race, potentially creating zombie-pipelines. At least the if block should be protected and there should be another check (similar to double-checked locking pattern).
Does docker synchronize API calls on logging plugins? In this case we might be safe here.
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What happened to the notice file? Given the change itself I wonder why we need to update it in this PR. |
fearful-symmetry
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* make locking more fine-grained on client close
leweafan
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* make locking more fine-grained on client close
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This came out of a discussion with @urso -- Client and pipeline close operations on libbeat can block depending on
WaitCloseand other settings. We could potentially block other client start operations while the pipelines drained. This attempts to make the locking more fine-grained so we don't hold a mutex while queues drain.