Prior to Solaris 10, one could easily enough display the contents of the struct queue array qt (see cron.c) using mdb; that shows, for each queue (all 26 possible, not just the standard a b c), the values in queuedefs(4), plus the number of jobs currently running in that queue.
But from Solaris 10 on, something must be different about the way cron is linked; mdb can no longer see that symbol. (unless there's some trick I'm missing) With Solaris >= 10, it might be nicer if there were dtrace probes to retrieve that info... something like a proper interface, as it were. And a few more probes (job start, job end (with return code), errors affecting job scheduling, etc) perhaps might be nice too, enough to effectively monitor cron's behavior. Oh, and one other suggested probe: a way to get cron's idea of the timezone it is running in (although pargs could retrieve its TZ value, it would be better of all the interesting stuff could be done one way). Anyone looking into adding probes to cron yet? -- This message posted from opensolaris.org _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
