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Handle situations where directories don't exist

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- The pgsql_tmp and archive_ready directories don't always exist.  Since
  PG <=9.4 doesn't have the "missing_ok" parameter, we have to work
  around the missing directories explicitly.
This commit is contained in:
James Campbell 2025-12-02 01:05:16 -05:00
parent 174cac4ca6
commit 590425fae7
Signed by: james
GPG Key ID: 2287C33A40DC906A
1 changed files with 37 additions and 12 deletions
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49
sample-config/pgmon-metrics.yml
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@ -120,13 +120,26 @@ metrics:
type: row
query:
120000: >
SELECT count(*) AS count, sum(size) AS size
SELECT count(*) AS count, coalesce(sum(size), 0) AS size
FROM pg_ls_tmpdir()
WHERE name LIKE 'pgsql_tmp%'
*: >
SELECT count(*) AS count, sum(size) AS size
FROM pg_ls_dir('base/pgsql_tmp/')
WHERE name LIKE 'pgsql_tmp%'
WHERE name LIKE 'pgsql_tmp%%'
90500: >
SELECT count(*) AS count, coalesce(sum((pg_stat_file(name)).size), 0) AS size
FROM pg_ls_dir('base/pgsql_tmp/', true, false) AS name
WHERE name LIKE 'pgsql_tmp%%'
0: >
SELECT
CASE WHEN (
SELECT count(*)
FROM pg_ls_dir('base') AS
base WHERE base = 'pgsql_tmp') = 0
THEN 0
ELSE (
SELECT count(*)
FROM pg_ls_dir('base/pgsql_tmp/') AS name
WHERE name LIKE 'pgsql_tmp%%')
END
ready_archive_files:
type: value
@ -134,15 +147,27 @@ metrics:
120000: >
SELECT count(*) AS count
FROM pg_ls_archive_statusdir()
WHERE name LIKE '%.ready'
WHERE name LIKE '%%.ready'
100000: >
SELECT count(*) AS count
FROM pg_ls_dir('pg_wal/pgsql_tmp/')
WHERE name LIKE '%.ready'
*: >
FROM pg_ls_dir('pg_wal/archive_status/', true, false) AS name
WHERE name LIKE '%%.ready'
90500: >
SELECT count(*) AS count
FROM pg_ls_dir('pg_xlog/pgsql_tmp/')
WHERE name LIKE '%.ready'
FROM pg_ls_dir('pg_xlog/archive_status/', true, false) AS name
WHERE name LIKE '%%.ready'
0: >
SELECT
CASE WHEN (
SELECT count(*)
FROM pg_ls_dir('pg_xlog/') AS f
WHERE f = 'archive_status') = 0
THEN 0
ELSE (
SELECT count(*) AS count
FROM pg_ls_dir('pg_xlog/archive_status/') AS name
WHERE name LIKE '%%.ready')
END
##