Vertica Analytics Platform Version 10.1.x Documentation

DUMP_LOCKTABLE

Returns information about deadlocked clients and the resources they are waiting for.

Syntax

DUMP_LOCKTABLE()

Privileges

None

Notes

Use DUMP_LOCKTABLE if Vertica becomes unresponsive:

  1. Open an additional vsql connection.
  2. Execute the query:

    => SELECT DUMP_LOCKTABLE();

    The output is written to vsql. See Monitoring the Log Files.

You can also see who is connected using the following command:

=> SELECT * FROM SESSIONS;

Close all sessions using the following command:

=> SELECT CLOSE_ALL_SESSIONS();

Close a single session using the following command:

=> SELECT CLOSE_SESSION('session_id');

You get the session_id value from the V_MONITOR.SESSIONS system table.