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YanhaoYang/postgresql-connections.md

Created December 18, 2013 09:36
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PostgreSLQ connections
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postgresql-connections.md

  • Show active connections

    • SELECT * FROM pg_stat_activity;
    • ps aux | grep postgres | wc -l (roughly, when you cannot connect to it)

  • Show @max_connections@

    • In psql: SHOW max_connections; (SHOW ALL;)
    • SQL: SELECT * FROM pg_settings WHERE name = 'max_connections';
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