make testrace PKG=./util/metrics

[tbg]

race testing may occasionally fail, probably due to channels filling up.

E0929 15:39:02.424096 08458 metrics.go:566] a raw subscriber has allowed their channel to fill up. dropping their metrics on the floor rather than blocking.

E0929 15:39:02.424554 08458 metrics.go:566] a raw subscriber has allowed their channel to fill up. dropping their metrics on the floor rather than blocking.

E0929 15:39:02.424627 08458 metrics.go:569] this raw subscriber has caused dropped metrics at least 3 times in a row. closing the channel.

--- FAIL: TestUpdateSubscribers (0.00 seconds)

metrics_test.go:256: received no raw metrics from the MetricSystem after 2 milliseconds.

metrics_test.go:264: received no processed metrics from the MetricSystem after 2 milliseconds.

FAIL

FAIL github.com/cockroachdb/cockroach/util/metrics 0.045s

make: *** [testrace] Error 1

The command "make testrace" exited with 2.

Done. Your build exited with 1.

[tbg]

fixed by @spencerkimball in #95