Add posgresql_diagnostic/diagnositc.sql

posgresql_diagnostic/diagnositc.sql

@@ -0,0 +1,57 @@
+-- Текущие активные подключения
+SELECT 
+    pid,
+    datname,
+    usename,
+    application_name,
+    client_addr,
+    state,
+    query,
+    query_start,
+    state_change
+FROM pg_stat_activity 
+WHERE state = 'active'
+ORDER BY query_start;
+
+-- Количество подключений по клиентам
+SELECT 
+    client_addr,
+    application_name,
+    count(*) as connection_count,
+    max(state) as state
+FROM pg_stat_activity 
+GROUP BY client_addr, application_name
+ORDER BY connection_count DESC;
+
+-- Долго выполняющиеся запросы
+SELECT 
+    pid,
+    now() - query_start as duration,
+    query,
+    state
+FROM pg_stat_activity 
+WHERE state = 'active' 
+AND now() - query_start > interval '30 seconds'
+ORDER BY duration DESC;
+
+
+-- Лимиты подключений
+SHOW max_connections;
+SHOW superuser_reserved_connections;
+
+-- Таймауты
+SHOW idle_in_transaction_session_timeout;
+SHOW tcp_keepalives_idle;
+SHOW tcp_keepalives_interval;
+
+
+-- Проверим, что делает DBeaver
+SELECT 
+    pid,
+    query,
+    state,
+    now() - query_start as running_for
+FROM pg_stat_activity 
+WHERE application_name LIKE '%DBeaver%'
+AND state = 'active';
+