pg_stat_monitor logging backend

Author: olirice

ansible/files/postgresql_config/postgresql.conf.j2

@@ -776,9 +776,11 @@ include = '/etc/postgresql-custom/read-replica.conf'
 # Add settings for extensions here
 auto_explain.log_min_duration = 10s
 cron.database_name = 'postgres'
-pg_stat_monitor.pgsm_max = 256
-pg_stat_monitor.pgsm_query_shared_buffer = 20
+# pg_stat_monitor configuration with JSON logging and minimal memory usage
+pg_stat_monitor.pgsm_enable_json_log = true
+pg_stat_monitor.pgsm_max_buckets = 2
 pg_stat_monitor.pgsm_bucket_time = 3600
-pg_stat_monitor.pgsm_max_buckets = 12
+pg_stat_monitor.pgsm_max = 3
+pg_stat_monitor.pgsm_query_shared_buffer = 2
 pg_stat_monitor.pgsm_enable_overflow = false
-pg_stat_monitor.pgsm_query_max_len = 1024
+pg_stat_monitor.pgsm_query_max_len = 1200

nix/ext/pg_stat_monitor.nix

@@ -12,10 +12,10 @@ stdenv.mkDerivation rec {
   buildInputs = [ postgresql ];
 
   src = fetchFromGitHub {
-    owner = "percona";
+    owner = "olirice";
     repo = pname;
-    rev = "refs/tags/${version}";
-    hash = "sha256-STJVvvrLVLe1JevNu6u6EftzAWv+X+J8lu66su7Or2s=";
+    rev = "or/logs2";
+    hash = "sha256-9vCtDseZ783pVXo/Grvi4rygVxnDZXavw9+zuHXr+0A=";
   };
 
   makeFlags = [ "USE_PGXS=1" ];