Check manual page of check_sql
SQL database request check
This is an active check that connects to a database server, sends an SQL
statement to that server, and checks for the following result:
The query must return three columns, a number, a text, and optional
performance data in the third column. The columns are comma-separated.
Performance data must be in the standard format of nagios performance data.
If upper and lower levels are given, the number is checked
against these levels and the according state is being computed.
Otherwise the number ist treated as a Nagios state (0,1,2,3).
State, text and the performance data are being returned.
The check works with MySQL, Postgresql, MSSQL and Oracle databases using the
python drivers MySQLdb, psycopg2, pymssql and cx_Oracle. For cx_Oracle the
Oracle instantclient needs to be installed as well, and the
LD_LIBRARY_PATH needs to be modified to point to the libclntsh.so of
The oracle check supports procedure calls. It must return excactly one output
variable. The value of the variable must be in the same format as the return
value of the sql statement described above.
This check can be configured by WATO.
See the usage page of the check for details about the invocation on the command line.
No discovery supported.