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backupccl: TestScheduleChainingLifecycle is flaky #88575

@nicktrav

Description

@nicktrav

Describe the problem

Observed in this CI run.

[TestScheduleChainingLifecycle/cluster] Failed
[23:58:19][TestScheduleChainingLifecycle/cluster] === RUN   TestScheduleChainingLifecycle/cluster
    schedule_pts_chaining_test.go:86: 
        	Error Trace:	/home/roach/.cache/bazel/_bazel_roach/c5a4e7d36696d9cd970af2045211a7df/sandbox/processwrapper-sandbox/6617/execroot/com_github_cockroachdb_cockroach/bazel-out/k8-fastbuild/bin/pkg/ccl/backupccl/backupccl_test_/backupccl_test.runfiles/com_github_cockroachdb_cockroach/pkg/ccl/backupccl/schedule_pts_chaining_test.go:86
        	            				/home/roach/.cache/bazel/_bazel_roach/c5a4e7d36696d9cd970af2045211a7df/sandbox/processwrapper-sandbox/6617/execroot/com_github_cockroachdb_cockroach/bazel-out/k8-fastbuild/bin/pkg/ccl/backupccl/backupccl_test_/backupccl_test.runfiles/com_github_cockroachdb_cockroach/pkg/ccl/backupccl/schedule_pts_chaining_test.go:178
        	Error:      	Not equal: 
        	            	expected: hlc.Timestamp{WallTime:1663890902552441000, Logical:0, Synthetic:false}
        	            	actual  : hlc.Timestamp{WallTime:1663890902571559000, Logical:0, Synthetic:false}
        	            	
        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,3 +1,3 @@
        	            	 (hlc.Timestamp) {
        	            	- WallTime: (int64) 1663890902552441000,
        	            	+ WallTime: (int64) 1663890902571559000,
        	            	  Logical: (int32) 0,
        	Test:       	TestScheduleChainingLifecycle/cluster
    --- FAIL: TestScheduleChainingLifecycle/cluster (1.00s)

To Reproduce

Attempted to repro locally via --stress, but couldn't observe a failure in a ~10 min run.

$ ./dev test ./pkg/ccl/backupccl --filter TestScheduleChainingLifecycle/cluster --stress

Jira issue: CRDB-19847

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A-disaster-recoveryA-jobsC-bugCode not up to spec/doc, specs & docs deemed correct. Solution expected to change code/behavior.T-jobs

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