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kv/kvserver: TestTxnReadWithinUncertaintyIntervalAfterRangeMerge failed #143260

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cockroach-teamcity opened this issue Mar 21, 2025 · 1 comment · May be fixed by #143270
Closed

kv/kvserver: TestTxnReadWithinUncertaintyIntervalAfterRangeMerge failed #143260

cockroach-teamcity opened this issue Mar 21, 2025 · 1 comment · May be fixed by #143270
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branch-release-23.2.22-rc C-test-failure Broken test (automatically or manually discovered). O-robot Originated from a bot. T-kv KV Team X-unactionable This was closed because it was unactionable.
Milestone
23.2

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@cockroach-teamcity
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cockroach-teamcity commented Mar 21, 2025 •
edited by cockroach-jira-scripts
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kv/kvserver.TestTxnReadWithinUncertaintyIntervalAfterRangeMerge failed with artifacts on release-23.2.22-rc @ 4aa9e5385aec01f3ce06b12b37caee5a62ad43cd:

=== RUN   TestTxnReadWithinUncertaintyIntervalAfterRangeMerge
    test_log_scope.go:165: test logs captured to: /artifacts/tmp/_tmp/33e1d369c27b9c01b2b6009c561815a3/logTestTxnReadWithinUncertaintyIntervalAfterRangeMerge3725361250
    test_log_scope.go:76: use -show-logs to present logs inline
    client_replica_test.go:1055: -- test log scope end --
test logs left over in: /artifacts/tmp/_tmp/33e1d369c27b9c01b2b6009c561815a3/logTestTxnReadWithinUncertaintyIntervalAfterRangeMerge3725361250
--- FAIL: TestTxnReadWithinUncertaintyIntervalAfterRangeMerge (31.28s)
=== RUN   TestTxnReadWithinUncertaintyIntervalAfterRangeMerge/alignLeaseholders=true
    --- FAIL: TestTxnReadWithinUncertaintyIntervalAfterRangeMerge/alignLeaseholders=true (15.96s)
=== RUN   TestTxnReadWithinUncertaintyIntervalAfterRangeMerge/alignLeaseholders=true/alsoSplit=true
    client_replica_test.go:1037: 
        	Error Trace:	github.com/cockroachdb/cockroach/pkg/kv/kvserver_test/pkg/kv/kvserver/client_replica_test.go:1037
        	            				github.com/cockroachdb/cockroach/pkg/kv/kvserver_test/pkg/kv/kvserver/client_replica_test.go:1052
        	            				github.com/cockroachdb/cockroach/pkg/testutils/subtest.go:26
        	Error:      	Object expected to be of type *kvpb.ReadWithinUncertaintyIntervalError, but was <nil>
        	Test:       	TestTxnReadWithinUncertaintyIntervalAfterRangeMerge/alignLeaseholders=true/alsoSplit=true
        --- FAIL: TestTxnReadWithinUncertaintyIntervalAfterRangeMerge/alignLeaseholders=true/alsoSplit=true (7.93s)

Parameters:

  • TAGS=bazel,gss,deadlock
  • stress=true
Help

See also: How To Investigate a Go Test Failure (internal)

/cc @cockroachdb/kv

This test on roachdash | Improve this report!

Jira issue: CRDB-48728
@cockroach-teamcity cockroach-teamcity added branch-release-23.2.22-rc C-test-failure Broken test (automatically or manually discovered). O-robot Originated from a bot. release-blocker Indicates a release-blocker. Use with branch-release-2x.x label to denote which branch is blocked. T-kv KV Team labels Mar 21, 2025
@cockroach-teamcity cockroach-teamcity added this to the 23.2 milestone Mar 21, 2025
@tbg
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tbg commented Mar 21, 2025

This is definitely a tarpit test. It started having this rare failure mode soon after its introduction in June 2022 and nobody has ever made any progress on it (see the low comment counts and the X-stale label).

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It's a really complex test to wrap your mind around, and then apparently it's really hard to get a repro, too. Nobody is going to engage with that.

@tbg tbg mentioned this issue Mar 21, 2025
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@tbg tbg added X-unactionable This was closed because it was unactionable. and removed release-blocker Indicates a release-blocker. Use with branch-release-2x.x label to denote which branch is blocked. labels Mar 24, 2025
@tbg tbg closed this as completed Mar 24, 2025
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branch-release-23.2.22-rc C-test-failure Broken test (automatically or manually discovered). O-robot Originated from a bot. T-kv KV Team X-unactionable This was closed because it was unactionable.
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kvserver: better obs in TestTxnReadWithinUncertaintyIntervalAfterRangeMerge tbg/cockroach
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