jlogmonitor
The jlogmonitor command can be used to monitor potential problems with the jlogdup process. It will report errors when specific
trigger events occur. jlogmonitor can be run in the foreground
but will usually be run as a background process (using the standard –Jb option).
SYNTAX
jlogmonitor {-h|?} {-ccmd} {-Cnn} {-Dnn} {-E} {-Inn) {-Snn}
SYNTAX ELEMENTS
| Option |
Description |
| -ccmd |
The command cmd is executed when an error occurs. |
| -Cnn |
If the file system utilization of the journal log exceeds nn%
full then an error message is displayed. The error message is repeated for
every 1% increase in file system utilization. |
| -Dnn |
If no records are processed by a jlogdup process (or if there is no
jlogdup process active), then after nn minutes of inactivity an error
message is displayed. The error message is repeated every nn minutes
the jlogdup process(es) are inactive. |
| -E |
If the jlogdup program reports an error, this option
causes jlogmonitor to also display an error. The actual nature of the error
can only be viewed by either looking at the screen where the jlogdup process
is active, or by listing the jlogdup error message file (assuming the
–eERRFILE option was used). |
| -h |
display help |
| -lnn |
The status of the journaler can be ACTIVE , INACTIVE or
SUSPENDED. Should the status of the journaler be set to either INACTIVE or
SUSPENDED (with jlogadmin) for more than nn minutes,
then an error message will be displayed. The error message will be repeated
every nn minutes that the journaler is not active |
| -Snn |
This option is used to determine if any updates are being
applied to the journal logs. If there are no updates applied to the current
journal log set for nn
minutes then an error message is displayed. The error message is repeated
for every nn
minutes that the system is inactive. |
NOTES
At least one of the options, -C, -D, -E, -I or -S, must be specified.
EXAMPLE
jlogmonitor –c"MESSAGE * %"
The command "MESSAGE * %" is executed for every message sent to the screen by
jlogdup. The use of % is specially interpreted by the jlogmonitor
program and will be replaced with the error message.
Transaction Journaling
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