LogsSuite.TestPruneLogsBySize intermittent failure count of pruned entries is not as expected

[Canonical Juju QA Bot]

02:25:38 FAIL: logs_test.go:226: LogsSuite.TestPruneLogsBySize
02:25:38
02:25:38 [LOG] 0:00.046 DEBUG juju.state mongodb initialised
02:25:38 [LOG] 0:00.047 INFO juju.state running state anonymously; using unique client id
02:25:38 [LOG] 0:00.047 INFO juju.state starting standard state workers
02:25:38 [LOG] 0:00.048 INFO juju.state creating cloud image metadata storage
02:25:38 [LOG] 0:00.048 INFO juju.state started state for model-15f2ada7-0441-4740-873d-808dd49836d2 successfully
02:25:38 [LOG] 0:00.049 DEBUG juju.state.presence using $bit operations with Mongo 3.2.15
02:25:38 [LOG] 0:00.051 INFO juju.state initializing controller model 15f2ada7-0441-4740-873d-808dd49836d2
02:25:38 [LOG] 0:00.332 INFO juju.state running state anonymously; using unique client id
02:25:38 [LOG] 0:00.332 INFO juju.state starting standard state workers
02:25:38 [LOG] 0:00.333 INFO juju.state creating cloud image metadata storage
02:25:38 [LOG] 0:00.333 INFO juju.state started state for model-4947d7af-69c3-4402-8a4e-5adc3655fee8 successfully
02:25:38 [LOG] 0:00.335 DEBUG juju.state.presence using $bit operations with Mongo 3.2.15
02:25:38 [LOG] 0:08.199 INFO juju.state running state anonymously; using unique client id
02:25:38 [LOG] 0:08.199 INFO juju.state starting standard state workers
02:25:38 [LOG] 0:08.199 INFO juju.state creating cloud image metadata storage
02:25:38 [LOG] 0:08.199 INFO juju.state started state for model-87ed6f10-10ed-4737-8869-af9fae9ce024 successfully
02:25:38 [LOG] 0:08.201 DEBUG juju.state.presence using $bit operations with Mongo 3.2.15
02:25:38 [LOG] 0:19.244 DEBUG test pruned 2469 logs for model 87ed6f10-10ed-4737-8869-af9fae9ce024
02:25:38 [LOG] 0:19.244 DEBUG test pruned 394 logs for model 4947d7af-69c3-4402-8a4e-5adc3655fee8
02:25:38 logs_test.go:254:
02:25:38 c.Check(msg, gc.Equals, "pruning complete after 0s, pruned 3243 entries from 2 models, logs db now 1 MB")
02:25:38 ... obtained string = "pruning complete after 0s, pruned 2863 entries from 2 models, logs db now 1 MB"
02:25:38 ... expected string = "pruning complete after 0s, pruned 3243 entries from 2 models, logs db now 1 MB"
02:25:38
02:25:38 [LOG] 0:19.261 DEBUG juju.state closed state without error
02:25:38 [LOG] 0:19.262 DEBUG juju.state closed state without error
02:25:38 [LOG] 0:19.270 DEBUG juju.state closed state without error

http://10.125.0.203:8080/job/RunUnittests-arm64/1073/console

[Anastasia (anastasia-macmood)]

Since this failure was reported, we have made a lot changes in the area, including removing this test in favor of a more efficient one.