roachtest: allocbench/nodes=7/cpu=8/kv/r=95/access=skew failed

[cockroach-teamcity]

roachtest.allocbench/nodes=7/cpu=8/kv/r=95/access=skew failed with artifacts on release-24.3.25-rc @ 6863d5ede7c3bafcdcc83c14e9f9b859b7b790ed:

(assertions.go:363).Fail: 
	Error Trace:	pkg/cmd/roachtest/tests/allocation_bench.go:384
	            				pkg/cmd/roachtest/tests/allocation_bench.go:334
	            				pkg/cmd/roachtest/tests/allocation_bench.go:263
	            				pkg/cmd/roachtest/test_runner.go:1277
	            				src/runtime/asm_amd64.s:1695
	Error:      	Received unexpected error:
	            	monitor failure: context canceled
	            	(1) attached stack trace
	            	  -- stack trace:
	            	  | main.(*monitorImpl).WaitE
	            	  | 	pkg/cmd/roachtest/monitor.go:137
	            	  | [...repeated from below...]
	            	Wraps: (2) monitor failure
	            	Wraps: (3) attached stack trace
	            	  -- stack trace:
	            	  | main.(*monitorImpl).wait
	            	  | 	pkg/cmd/roachtest/monitor.go:232
	            	  | main.(*monitorImpl).WaitE
	            	  | 	pkg/cmd/roachtest/monitor.go:137
	            	  | github.com/cockroachdb/cockroach/pkg/cmd/roachtest/tests.runAllocationBenchSample
	            	  | 	pkg/cmd/roachtest/tests/allocation_bench.go:383
	            	  | github.com/cockroachdb/cockroach/pkg/cmd/roachtest/tests.runAllocationBench
	            	  | 	pkg/cmd/roachtest/tests/allocation_bench.go:334
	            	  | github.com/cockroachdb/cockroach/pkg/cmd/roachtest/tests.registerAllocationBenchSpec.func1
	            	  | 	pkg/cmd/roachtest/tests/allocation_bench.go:263
	            	  | main.(*testRunner).runTest.func2
	            	  | 	pkg/cmd/roachtest/test_runner.go:1277
	            	  | runtime.goexit
	            	  | 	src/runtime/asm_amd64.s:1695
	            	Wraps: (4) context canceled
	            	  | EOF [owner=test-eng]
	            	    └─ Wraps: (5) EOF [owner=test-eng]
	            	      └─ Wraps: (6) EOF
	            	    └─ Wraps: (7) context canceled
	            	Error types: (1) *withstack.withStack (2) *errutil.withPrefix (3) *withstack.withStack (4) *join.joinError (5) registry.ErrorWithOwnership (6) *errors.errorString (7) *errors.errorString
	Test:       	allocbench/nodes=7/cpu=8/kv/r=95/access=skew
(require.go:1357).NoError: FailNow called
test artifacts and logs in: /artifacts/allocbench/nodes=7/cpu=8/kv/r=95/access=skew/run_1

Parameters:

• arch=amd64
• cloud=gce
• coverageBuild=false
• cpu=8
• encrypted=false
• fs=ext4
• localSSD=true
• runtimeAssertionsBuild=false
• ssd=0

Help

See: roachtest README

See: How To Investigate (internal)

See: Grafana

Same failure on other branches

• roachtest: allocbench/nodes=7/cpu=8/kv/r=95/access=skew failed #160180 roachtest: allocbench/nodes=7/cpu=8/kv/r=95/access=skew failed [C-test-failure O-roachtest O-robot T-kv branch-release-25.4]

/cc @cockroachdb/kv-triage

This test on roachdash | Improve this report!

Jira issue: CRDB-58349

[wenyihu6]

2026/01/03 08:34:39 monitor.go:203: Monitor event: n1: error: EOF

[wenyihu6]

Seems like a flake - n1 was up and running after that -

teamcity-20923788-1767421770-07-n8cpu8-0001> I260103 08:34:42.854233 15093 13@kv/kvserver/replica_raft.go:402 ⋮ [T1,Vsystem,n1,s1,r28/1:‹×›] 1872 proposing SIMPLE(r2) [(n2,s2):2LEARNER]: after=[(n1,s1):1 (n6,s6):6 (n3,s3):3 (n7,s7):4 (n4,s4):5] next=7