Administrative API Reference

sqlepstp - Stop Database Manager

Stops the current database manager instance. Unless explicitly stopped, the database manager continues to be active. This API does not stop the database manager instance if any applications are connected to databases. If there are no database connections, but there are instance attachments, it forces the instance attachments and stops the database manager. This API also deactivates any outstanding database activations before stopping the database manager.

This API can also be used to drop a node from the db2nodes.cfg file (MPP systems only).

This API is not valid on a client.

Scope

In a multi-node environment, this API affects all nodes that are listed in the $HOME/sqllib/db2nodes.cfg file, unless the nodenum parameter is used (see SQLEDBSTOPOPT).

Authorization

One of the following:

sysadm
sysctrl
sysmaint

Note: On OS/2, no authorization is required if the ss_logon database manager configuration parameter is set to 0.

Required Connection

None

Version

sqlenv.h

C API Syntax

/* File: sqlenv.h */ /* API: Stop Database Manager */ /* ... */ SQL_API_RC SQL_API_FN sqlepstp ( struct sqledbstopopt * pStopOptions, struct sqlca * pSqlca); /* ... */

Generic API Syntax

/* File: sqlenv.h */ /* API: Stop Database Manager */ /* ... */ SQL_API_RC SQL_API_FN sqlgpstp ( struct sqledbstopopt * pStopOptions, struct sqlca * pSqlca); /* ... */

API Parameters

pStopOptions: A pointer to the sqledbstopopt structure. This structure contains the stop options. The pointer can be null. For more information about this structure, see SQLEDBSTOPOPT.
pSqlca: Output. A pointer to the sqlca structure. For more information about this structure, see SQLCA.

REXX API Syntax

This API can be called from REXX through the SQLDB2 interface. See How the API Descriptions are Organized, or the Application Development Guide. For a description of the syntax, see the Command Reference.

Sample Programs

C: \sqllib\samples\c\dbstop.c
COBOL: \sqllib\samples\cobol\dbstop.cbl
FORTRAN: \sqllib\samples\fortran\dbstop.f
REXX: \sqllib\samples\rexx\dbstop.cmd

Usage Notes

It is not necessary to call this API on a client node. It is provided for compatibility with older clients, but it has no effect on the database manager.

Once started, the database manager instance runs until the user stops it, even if all application programs that were using it have ended.

If the database manager cannot be stopped because application programs are still connected to databases, use sqlefrce - Force Application to disconnect all users first, or call the sqlepstp API again with the FORCE option.

The following information currently applies to multiple node environments only:

If no parameters are specified, the database manager is stopped on each node listed in the node configuration file. The db2diag.log file may contain messages to indicate that other nodes are shutting down.
Any nodes added to the MPP system since the previous call to sqlepstp will be updated in the db2nodes.cfg file.
On UNIX platforms, this API supports the SIGALRM signal, which is issued if the value specified for the start_stop_time database manager configuration parameter is reached. If this signal occurs, all in-progress stops are interrupted, and message SQL6037N is returned from each interrupted node to the $HOME/sqllib/log/db2stop. timestamp.log error log file. Nodes that are already stopped are not affected.
The db2cshrc file is not supported and cannot be specified as the value for the PROFILE parameter.

sqledrpn - Drop Node Verify

sqlefrce - Force Application

sqlepstart - Start Database Manager.

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