[+] add sent_lag and confirmed_flush_lsn_lag fields to replication metrics
#700
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bukem
changed the title
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Thanks. You need to update according files in the metric folder as well |
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updated the files in the metric folder |
pashagolub
changed the title
sent_lag and confirmed_flush_lsn_lag fields to replication metrics
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Do you think we need to update Grafana dashboards with these new fields? Or are they solely used with Prometheus? |
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@pashagolub not sure if the question is to me or to @kmoppel-cognite . In my opinion, it should be added to the "Replication lag" dashboard. |
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pg_stat_replication.sent_lag and pg_replication_slots.confirmed_flush_lsn
sent_lagmeasures the amount of WAL data that is pending replication to a specific standby and helps DBA and operators to identify potential performance bottlenecks and optimize the replication process to minimize lag.The
confirmed_flush_lsnof a replication slot indicates the last LSN that has been successfully written to the WAL on the primary server and subsequently replicated to the associated standby server. It can be used as a reference point to ensure replication consistency.