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stop logging errors on replicas, fixes #547 (#1048)

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Signed-off-by: Steffen Zieger <github@saz.sh>
This commit is contained in:
Steffen Zieger 2024-09-05 15:28:31 +02:00 committed by GitHub
parent 3c5ef40e2b
commit 98f75c7e7e
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1 changed files with 10 additions and 8 deletions
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18
cmd/postgres_exporter/queries.go
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@ -51,9 +51,9 @@ var queryOverrides = map[string][]OverrideQuery{
semver.MustParseRange(">=10.0.0"),
`
SELECT *,
(case pg_is_in_recovery() when 't' then null else pg_current_wal_lsn() end) AS pg_current_wal_lsn,
(case pg_is_in_recovery() when 't' then null else pg_wal_lsn_diff(pg_current_wal_lsn(), pg_lsn('0/0'))::float end) AS pg_current_wal_lsn_bytes,
(case pg_is_in_recovery() when 't' then null else pg_wal_lsn_diff(pg_current_wal_lsn(), replay_lsn)::float end) AS pg_wal_lsn_diff
(case pg_is_in_recovery() when 't' then pg_last_wal_receive_lsn() else pg_current_wal_lsn() end) AS pg_current_wal_lsn,
(case pg_is_in_recovery() when 't' then pg_wal_lsn_diff(pg_last_wal_receive_lsn(), pg_lsn('0/0'))::float else pg_wal_lsn_diff(pg_current_wal_lsn(), pg_lsn('0/0'))::float end) AS pg_current_wal_lsn_bytes,
(case pg_is_in_recovery() when 't' then pg_wal_lsn_diff(pg_last_wal_receive_lsn(), replay_lsn)::float else pg_wal_lsn_diff(pg_current_wal_lsn(), replay_lsn)::float end) AS pg_wal_lsn_diff
FROM pg_stat_replication
`,
},
@ -61,8 +61,8 @@ var queryOverrides = map[string][]OverrideQuery{
semver.MustParseRange(">=9.2.0 <10.0.0"),
`
SELECT *,
(case pg_is_in_recovery() when 't' then null else pg_current_xlog_location() end) AS pg_current_xlog_location,
(case pg_is_in_recovery() when 't' then null else pg_xlog_location_diff(pg_current_xlog_location(), replay_location)::float end) AS pg_xlog_location_diff
(case pg_is_in_recovery() when 't' then pg_last_xlog_receive_location() else pg_current_xlog_location() end) AS pg_current_xlog_location,
(case pg_is_in_recovery() when 't' then pg_xlog_location_diff(pg_last_xlog_receive_location(), replay_location)::float else pg_xlog_location_diff(pg_current_xlog_location(), replay_location)::float end) AS pg_xlog_location_diff
FROM pg_stat_replication
`,
},
@ -70,7 +70,7 @@ var queryOverrides = map[string][]OverrideQuery{
semver.MustParseRange("<9.2.0"),
`
SELECT *,
(case pg_is_in_recovery() when 't' then null else pg_current_xlog_location() end) AS pg_current_xlog_location
(case pg_is_in_recovery() when 't' then pg_last_xlog_receive_location() else pg_current_xlog_location() end) AS pg_current_xlog_location
FROM pg_stat_replication
`,
},
@ -80,14 +80,16 @@ var queryOverrides = map[string][]OverrideQuery{
{
semver.MustParseRange(">=9.4.0 <10.0.0"),
`
SELECT slot_name, database, active, pg_xlog_location_diff(pg_current_xlog_location(), restart_lsn)
SELECT slot_name, database, active,
(case pg_is_in_recovery() when 't' then pg_xlog_location_diff(pg_last_xlog_receive_location(), restart_lsn) else pg_xlog_location_diff(pg_current_xlog_location(), restart_lsn) end) as pg_xlog_location_diff
FROM pg_replication_slots
`,
},
{
semver.MustParseRange(">=10.0.0"),
`
SELECT slot_name, database, active, pg_wal_lsn_diff(pg_current_wal_lsn(), restart_lsn)
SELECT slot_name, database, active,
(case pg_is_in_recovery() when 't' then pg_wal_lsn_diff(pg_last_wal_receive_lsn(), restart_lsn) else pg_wal_lsn_diff(pg_current_wal_lsn(), restart_lsn) end) as pg_wal_lsn_diff
FROM pg_replication_slots
`,
},