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28923: release-2.1: changefeedccl,roachtest: more changefeed introspection for debugging r=mrtracy a=danhhz
Backport 1/1 commits from #28853.
/cc @cockroachdb/release
Closes#28922.
---
Fix up the roachtests to use the high-water timestamp in
crdb_internal.jobs, now that it exists. Also length the roachtest to get
a better sense of how variable the latencies are over a longer period.
Add a couple more metrics (changefeed.emit_nanos and changefeed.flushes)
that are helpful in debugging performance problems with the sink.
Timeseries storage is expensive, is this too many metrics?
Release note (enterprise change): Added additional monitoring metrics
for changefeeds.
Co-authored-by: Daniel Harrison <daniel.harrison@gmail.com>
SHA: https://github.com/cockroachdb/cockroach/commits/dab7a982c4aea0439df8cadaaa889c2e0db9609b
Parameters:
Failed test: https://teamcity.cockroachdb.com/viewLog.html?buildId=852802&tab=buildLog
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