[7.x] Add snapshot stress tests (#78596) #78611
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DaveCTurner
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@DaveCTurner I still have some open backports for the snapshot state machine, this one is probably blocked on those. Working through them today. I can merge this one afterwards! |
Adds `SnapshotStressTestsIT`, a test that performs a wide variety of concurrent snapshot-related operations to explore the corners of the snapshot state machine in a randomized fashion: - indexing docs, deleting and re-creating the indices - restarting nodes - removing and adding repositores - taking snapshots (sometimes partial), cloning them, and deleting them It ensures that these operations should succeed via a system of shared/exclusive locks. None of the operations block. If the necessary locks aren't all available then the operation just releases the ones it has acquired and tries again later. The test completes after completing a certain number of snapshots or after a certain time has elapsed.
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DaveCTurner
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Compile failures are the usual stuff, I force-pushed a fixed backport. It'll likely merge fine but may fail until everything else is backported so I'll leave this for you to merge when ready. |
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@original-brownbear is this still blocked on anything? |
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@DaveCTurner yea but it's on my list for today afternoon :) Sorry, busy times :( |
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@elasticmachine update branch |
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@DaveCTurner sorry for the delay here, this should be just to merge now. All backported at last :) |
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Great, I've done that |
DaveCTurner
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Oct 18, 2021
Fixes test failures introduced in #78611
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Backports the following commits to 7.x: