> 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)
I'm not sure what you and I are doing differently, but I can see that symbol: > qt::nm Value Size Type Bind Other Shndx Name 0x0806dc48|0x000001a0|OBJT |LOCL |0x0 |23 |cron`qt > 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? That would be a great RFE to submit on bugs.opensolaris.org. Nice idea. Adam -- Adam Leventhal, Fishworks http://blogs.sun.com/ahl _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
