Displays information about active database users, the monitor
log file specification, the number of monitor buffers available,
and if after-image journal (AIJ) backup operations have been
suspended. It allows you to see the user activity of specified
databases on a specific node, and identifies the various nodes in
the VMScluster where the database is currently open and available
for use. In addition, if you are using Oracle Rdb for OpenVMS
Alpha, this command indicates whether or not system space global
sections are enabled.
If you are interested in information on users for a cluster, use
the RMU Dump command with the Users qualifier.
1 – Description
The RMU Show Users command displays information about all active
database users or users of a particular database, the file
specification for the monitor log file, the number of monitor
buffers available, and if AIJ backup operations have been
suspended.
This command also displays global buffer information for the node
on which the RMU Show Users command is issued and displays global
buffer information for the specified database only if global
buffers are enabled for that database.
2 – Format
(B)0[m RMU/Show Users [root-file-spec]
[4mCommand[m [4mQualifier[m x [4mDefault[m
x
/Output[=file-name] x /Output = SYS$OUTPUT
3 – Parameters
3.1 – root-file-spec
The root file specification of the database for which you want
information. This parameter is optional. If you specify it, only
users of that database are shown. Otherwise, all users of all
active databases on your current node are shown.
4 – Command Qualifiers
4.1 – Output
Output[=file-name]
Specifies the name of the file where output will be sent. The
default is SYS$OUTPUT. The default output file extension is .lis,
if you specify a file name.
5 – Usage Notes
o To use the RMU Show Users command for a specified database,
you must have the RMU$SHOW, RMU$BACKUP, or RMU$OPEN privilege
in the root file access control list (ACL) of the database, or
the OpenVMS WORLD privilege.
To use the RMU Show Users command without specifying a
database, you must have the RMU$SHOW, RMU$BACKUP, or RMU$OPEN
privilege in the root file ACL of the database or databases,
and the OpenVMS WORLD privilege.
o When the database monitor is completely idle, identified in
the output of the RMU Show Users command by the "no databases
accessed on this node" message, the number of available
monitor messages should be 1 less than the maximum. During
periods of monitor activity, it is normal for the number
of available monitor buffers to be less than the maximum,
depending on how much work remains for the monitor to process.
6 – Examples
Example 1
The following command lists current users information in the file
DBUSE.LIS:
$ RMU/SHOW USERS/OUTPUT=DBUSE
Example 2
The following example shows all active users:
$ RMU/SHOW USER
Oracle Rdb V7.0-64 on node NODEA 27-JUN-2002 16:25:49.64
- monitor started 26-JUN-2002 06:33:07.33 (uptime 1 09:52:42)
- monitor log filename is "$DISK1:[LOGS]MON701_NODEA.LOG;12"
database DISK2:[TEST]M_TESTDB.RDB;3
- first opened 26-JUN-2002 23:24:41.55 (elapsed 0 17:01:08)
* database is opened by an operator
* After-image backup operations temporarily suspended from this node
- current after-image journal file is DISK3:[TEST1]TEST3.AIJ;2
- AIJ Log Server is active
- 1 active database user
- database also open on these nodes:
NODEB
- 23225948:1 - RDM_4 - non-utility server, USER1 - active user
- image DISK4:[SYS1.SYSCOMMON.][SYSEXE]RDMALS701.EXE;567