Flaky Test: AllMetricsOneFunction

[easwars]

https://github.com/grpc/grpc-go/actions/runs/9981600990/job/27585576492?pr=7397

--- FAIL: Test (0.08s)
    --- FAIL: Test/AllMetricsOneFunction (0.02s)
        tlogger.go:116: INFO server.go:685 [core] [Server #13]Server created  (t=+581.784µs)
        tlogger.go:116: INFO clientconn.go:1683 [core] original dial target is: "whatever:///127.0.0.1:36449"  (t=+676.37µs)
        tlogger.go:116: INFO clientconn.go:310 [core] [Channel #15]Channel created  (t=+742.573µs)
        tlogger.go:116: INFO clientconn.go:192 [core] [Channel #15]parsed dial target is: resolver.Target{URL:url.URL{Scheme:"whatever", Opaque:"", User:(*url.Userinfo)(nil), Host:"", Path:"/127.0.0.1:36449", RawPath:"", OmitHost:false, ForceQuery:false, RawQuery:"", Fragment:"", RawFragment:""}}  (t=+843.[231](https://github.com/grpc/grpc-go/actions/runs/9981600990/job/27585576492?pr=7397#step:8:232)µs)
        tlogger.go:116: INFO clientconn.go:193 [core] [Channel #15]Channel authority set to "127.0.0.1:36449"  (t=+906.989µs)
        tlogger.go:116: INFO server.go:881 [core] [Server #13 ListenSocket #14]ListenSocket created  (t=+989.032µs)
        tlogger.go:116: INFO clientconn.go:310 [core] [Channel #15]Channel exiting idle mode  (t=+1.056518ms)
        tlogger.go:116: INFO resolver_wrapper.go:197 [core] [Channel #15]Resolver state updated: {
              "Addresses": [
                {
                  "Addr": "127.0.0.1:36449",
                  "ServerName": "",
                  "Attributes": null,
                  "BalancerAttributes": null,
                  "Metadata": null
                }
              ],
              "Endpoints": [
                {
                  "Addresses": [
                    {
                      "Addr": "127.0.0.1:36449",
                      "ServerName": "",
                      "Attributes": null,
                      "BalancerAttributes": null,
                      "Metadata": null
                    }
                  ],
                  "Attributes": null
                }
              ],
              "ServiceConfig": null,
              "Attributes": null
            } (resolver returned new addresses)  (t=+1.220113ms)
        tlogger.go:116: INFO balancer_wrapper.go:106 [core] [Channel #15]Channel switches to new LB policy "pick_first"  (t=+1.314068ms)
        tlogger.go:116: INFO clientconn.go:847 [core] [Channel #15 SubChannel #16]Subchannel created  (t=+1.391121ms)
        tlogger.go:116: INFO clientconn.go:540 [core] [Channel #15]Channel Connectivity change to CONNECTING  (t=+1.444821ms)
        tlogger.go:116: INFO clientconn.go:1207 [core] [Channel #15 SubChannel #16]Subchannel Connectivity change to CONNECTING  (t=+1.573861ms)
        tlogger.go:116: INFO clientconn.go:1325 [core] [Channel #15 SubChannel #16]Subchannel picks a new address "127.0.0.1:36449" to connect  (t=+1.668[247](https://github.com/grpc/grpc-go/actions/runs/9981600990/job/27585576492?pr=7397#step:8:248)ms)
        tlogger.go:116: INFO clientconn.go:1207 [core] [Channel #15 SubChannel #16]Subchannel Connectivity change to READY  (t=+2.189578ms)
        tlogger.go:116: INFO clientconn.go:540 [core] [Channel #15]Channel Connectivity change to READY  (t=+2.273043ms)
        testutils.go:62: [Metrics Data not equal: Histogram not equal: Histogram DataPoints not equal:
            missing expected values:
            metricdata.HistogramDataPoint[int64]{Attributes:attribute.Set{equivalent:attribute.Distinct{iface:[2]attribute.KeyValue{attribute.KeyValue{Key:"grpc.method", Value:attribute.Value{vtype:4, numeric:0x0, stringly:"grpc.testing.TestService/UnaryCall", slice:interface {}(nil)}}, attribute.KeyValue{Key:"grpc.status", Value:attribute.Value{vtype:4, numeric:0x0, stringly:"OK", slice:interface {}(nil)}}}}}, StartTime:time.Date(1, time.January, 1, 0, 0, 0, 0, time.UTC), Time:time.Date(1, time.January, 1, 0, 0, 0, 0, time.UTC), Count:0x1, Bounds:[]float64{0, 1024, 2048, 4096, 16384, 65536, [262](https://github.com/grpc/grpc-go/actions/runs/9981600990/job/27585576492?pr=7397#step:8:263)144, 1.048576e+06, 4.194304e+06, 1.6777216e+07, 6.7108864e+07, 2.68435456e+08, 1.073741824e+09, 4.294967296e+09}, BucketCounts:[]uint64{0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, Min:metricdata.Extrema[int64]{value:57, valid:true}, Max:metricdata.Extrema[int64]{value:57, valid:true}, Sum:57, Exemplars:[]metricdata.Exemplar[int64](nil)}
            ]
        tlogger.go:116: INFO clientconn.go:540 [core] [Channel #15]Channel Connectivity change to SHUTDOWN  (t=+19.182838ms)
        tlogger.go:116: INFO resolver_wrapper.go:100 [core] [Channel #15]Closing the name resolver  (t=+19.281922ms)
        tlogger.go:116: INFO balancer_wrapper.go:144 [core] [Channel #15]ccBalancerWrapper: closing  (t=+19.360909ms)
        tlogger.go:116: INFO clientconn.go:1207 [core] [Channel #15 SubChannel #16]Subchannel Connectivity change to SHUTDOWN  (t=+19.470213ms)
        tlogger.go:116: INFO clientconn.go:1556 [core] [Channel #15 SubChannel #16]Subchannel deleted  (t=+19.530595ms)
        tlogger.go:116: INFO clientconn.go:310 [core] [Channel #15]Channel deleted  (t=+19.709438ms)
        tlogger.go:116: INFO server.go:817 [core] [Server #13 ListenSocket #14]ListenSocket deleted  (t=+19.808393ms)
FAIL
FAIL	google.golang.org/grpc/stats/opentelemetry	0.173s

[zasweq]

Will run this on g3. Error message seems strange, will try and figure out what's happening.

[easwars]

https://github.com/grpc/grpc-go/actions/runs/11710477647/job/32616845920?pr=7814

[arjan-bal]

https://github.com/grpc/grpc-go/actions/runs/11812153731/job/32908404772

[easwars]

https://github.com/grpc/grpc-go/actions/runs/12306496136/job/34348329478?pr=7924