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mvcc: use GaugeFunc metric to load db size when requested #8150

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merged 2 commits into from
Jun 22, 2017
Merged

mvcc: use GaugeFunc metric to load db size when requested #8150

merged 2 commits into from
Jun 22, 2017

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heyitsanthony
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Fixes #8146

gyuho
gyuho approved these changes Jun 21, 2017
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lgtm. thanks

@heyitsanthony heyitsanthony force-pushed the update-db-size-defrag branch 2 times, most recently from 9d3a8d3 to 90faf88 Compare June 22, 2017 05:32
@heyitsanthony heyitsanthony changed the title v3rpc: update mvcc db size stats after defrag mvcc: use GaugeFunc metric to load db size when requested Jun 22, 2017
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the v3rpc way was racey and sort of a hack (and failing CI); I changed the metric in mvcc so prometheus loads the size from the backend instead of expecting mvcc to set it /cc @gyuho

@heyitsanthony heyitsanthony force-pushed the update-db-size-defrag branch 2 times, most recently from 5eb8d2e to fecfd15 Compare June 22, 2017 05:57
@heyitsanthony
mvcc: use GaugeFunc metric to load db size when requested
522e75c 
Relying on mvcc to set the db size metric can cause it to
miss size changes when a txn commits after the last write
completes before a quiescent period. Instead, load the
db size on demand.

Fixes etcd-io#8146
@gyuho
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gyuho commented Jun 22, 2017

lgtm. CI failures are from grpc?

@heyitsanthony heyitsanthony merged commit 310a096 into etcd-io:master Jun 22, 2017
@heyitsanthony heyitsanthony deleted the update-db-size-defrag branch June 22, 2017 16:38
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