Forum OpenACS Q&A: Fixing Up Monitoring:

Right now the manual interface for watchdog is broken on all of my acs5 servers because AOLserver claims that it can't find the file when it tries to exec the script, but info exists $command returns 1.

here is the snippet from the error log:

Notice: command: /export/staging/mdb/packages/monitoring/bin/aolserver-errors.pl
[29/Oct/2004:14:37:26][28860.3056282544][-conn:staging-mdb::1] Error: Watchdog(wd_errors): couldn't execute "/export/staging/mdb/packages/monitoring/bin/aolserver-errors.pl": no such file or directory
    while executing
"exec $command $options [ns_info log]"

and here is the relevant source code snippet:

        set command [ad_parameter -package_id [monitoring_pkg_id] WatchDogParser monitoring $default_command]
	ns_log notice command: $command
        if { ![file exists $command] } {
            ns_log Error "Watchdog($proc_name): Can't find WatchDogParser: $command doesn't exist" 
        } else {
            # This has been changed from the previous version's concat
            # because it did not work.  Some quick testing
            # did not reveal an elegant solution, so we're going back
            # to the old less-elegant-but-functional solution

            if { [catch { set result [exec $command $options [ns_info log]] } err_msg] } {
                global errorInfo
                ns_log Error "Watchdog($proc_name): $errorInfo"
                return ""
            } else {
                return $result
            }
            
        }

notice that it only attempts to exec the command after it finds the script.

I am currently stumped and would love a suggestion.

oh, here are the permissions on the file in question:

[carl 14:49:28 /export/staging/mdb/packages/monitoring/bin]$ ls -las
total 20
   4 drwxrwxr-x    3 carl     users        4096 Oct 27 12:49 .
   4 drwxrwxr-x    7 carl     users        4096 Oct 27 12:49 ..
   8 -rwxrwxrwx    1 carl     users        6009 Apr  1  2003 aolserver-errors.pl
   4 drwxrwxrwx    2 carl     users        4096 Oct 27 12:49 CVS
[carl 14:49:29 /export/staging/mdb/packages/monitoring/bin]$ 

Thank You,

Carl C-M

You're still using the aolserver-errors.pl Perl script for Watchdog? Why? I thought I contributed a Tcl proc version of that years ago. Hm, yes, I did, and at least on the Head, proc wd_errors defaults to -external_parser_p 0, which calls the wd_aolserver_errors Tcl proc rather than exec'ing aolserver-errors.pl.

Are you using the Perl script version purposely, or by accident? If by accident, I recommend trying the Tcl version instead.