{
  "slug": "postgres-check-lock-waits",
  "title": "Check PostgreSQL Lock Waits",
  "fixture": "containers/db-first-response-lab",
  "command_count": 2,
  "container_tool": "docker",
  "image": "localhost/linuxoneliners-lab:latest",
  "exit_code": 0,
  "elapsed_ms": 182,
  "stdout": "::fixture-ready::\n$ psql -X -c \"select pid, wait_event_type, wait_event, state, left(query, 80) as query from pg_stat_activity where wait_event_type is not null order by pid;\"\n pid | wait_event_type |  wait_event  | state  |              query\n-----+-----------------+--------------+--------+----------------------------------\n 518 | Lock            | relation     | active | alter table orders add column\n 522 | IO              | DataFileRead | active | select * from reports\n(2 rows)\n::exit-code::0\n$ psql -X -c \"select wait_event_type, count(*) from pg_stat_activity where wait_event_type is not null group by wait_event_type;\"\n wait_event_type | count\n-----------------+-------\n Lock            |     1\n IO              |     1\n(2 rows)\n::exit-code::0\n",
  "stderr": "",
  "ok": true,
  "security": {
    "network": "none",
    "capabilities": "dropped",
    "no_new_privileges": true,
    "memory": "256m",
    "cpus": "1",
    "pids_limit": 128,
    "tmpfs": [
      "/tmp",
      "/var"
    ]
  }
}