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raft: panic: applied(25) is out of range [prevApplied(10), committed(10)] #1878

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tamird opened this issue Jul 31, 2015 · 5 comments
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raft: panic: applied(25) is out of range [prevApplied(10), committed(10)] #1878

tamird opened this issue Jul 31, 2015 · 5 comments
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@bdarnell
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C-bug Code not up to spec/doc, specs & docs deemed correct. Solution expected to change code/behavior. C-test-failure Broken test (automatically or manually discovered).

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@tamird
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tamird commented Jul 31, 2015

Happened on my multicpu branch.

https://circleci.com/gh/cockroachdb/cockroach/5249

https://circle-artifacts.com/gh/cockroachdb/cockroach/5249/artifacts/0/tmp/circle-artifacts.6Xbc003/test.log

TestRaftRemoveRace specifically triggers this.
@tamird tamird added C-bug Code not up to spec/doc, specs & docs deemed correct. Solution expected to change code/behavior. C-test-failure Broken test (automatically or manually discovered). multi-cpu labels Jul 31, 2015
@bdarnell
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Looks like a race between GC and other raft operations, as discussed in #768 and #1865.

@jess-edwards jess-edwards mentioned this issue Aug 18, 2015
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This was referenced Aug 26, 2015
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This was referenced Sep 4, 2015
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@tbg
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tbg commented Sep 15, 2015

one more for the inclined: https://circleci.com/gh/tschottdorf/cockroach/1347

@bdarnell bdarnell mentioned this issue Sep 16, 2015
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@mrtracy mrtracy mentioned this issue Sep 21, 2015
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This was referenced Oct 12, 2015
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@bdarnell
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I've reviewed all the linked logs and they all appear to be the same root cause, #768, which has been fixed by the combination of #2798 and #2823. Please open new issues if anything like this turns up again.

@tamird
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tamird commented Oct 14, 2015

After rebasing #1839, I still see a failure in TestRaftRemoveRace:

panic: [group 1] applied(54) is out of range [prevApplied(0), committed(0)]

https://circleci.com/gh/cockroachdb/cockroach/8440
https://circle-artifacts.com/gh/cockroachdb/cockroach/8440/artifacts/0/tmp/circle-artifacts.HHAR97f/test.log

@tamird tamird reopened this Oct 14, 2015
@bdarnell
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Let's make that a new issue then - even though the message is similar, the underlying cause looks different and it's not helpful to continue in this thread. Also, all the others in this thread had non-zero values for prevApplied and committed

@bdarnell bdarnell mentioned this issue Oct 14, 2015
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