detect a script crash
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From: Ashley Sheridan on 2 Jul 2010 06:51 Hi all, Bit of a curve ball here (at least I couldn't find anything on Google yet) but I need a way to be able to detect if a particular php script crashes and generate some form of report from it. Here is the system setup: CentOS system, with the PHP scripts running as CLI called from a bash script as part of a daemon. The setup is already all in-place for an existing system, I've just been asked to implement a crash detection system. I know I can monitor the error logs with tail() to detect errors, but that is likely not going to be the main issue which needs tracking. I've found a bit of documentation online for pcntl_signal() which I believe should do the trick, but I can't seem to find just a plain old list of signal monikers and their meanings. Does anyone have any light to shed on this? Also, any other input/suggestions would be more than welcome. Thanks, Ash http://www.ashleysheridan.co.uk
From: Ashley Sheridan on 2 Jul 2010 08:29
On Fri, 2010-07-02 at 11:51 +0100, Ashley Sheridan wrote: > Hi all, > > Bit of a curve ball here (at least I couldn't find anything on Google > yet) but I need a way to be able to detect if a particular php script > crashes and generate some form of report from it. > > Here is the system setup: > > CentOS system, with the PHP scripts running as CLI called from a bash > script as part of a daemon. The setup is already all in-place for an > existing system, I've just been asked to implement a crash detection > system. > > I know I can monitor the error logs with tail() to detect errors, but > that is likely not going to be the main issue which needs tracking. > > I've found a bit of documentation online for pcntl_signal() which I > believe should do the trick, but I can't seem to find just a plain old > list of signal monikers and their meanings. Does anyone have any light > to shed on this? > > Also, any other input/suggestions would be more than welcome. > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > I think I've managed to answer my own question now. I found a list of system codes at http://www.php.net/manual/en/pcntl.constants.php but with no accompanying descriptions of what each one means (and quite frankly they all look foreign to me for what they're worth!) However, Wikipedia to the rescue, http://en.wikipedia.org/wiki/SIGILL (and all the other signal pages it has - links at the bottom of that one) it has a good list of the codes used by Unix systems and even the Linux only ones which are just synonyms for the Unix ones. Hopefully, that's useful to someone else who had a similar problem! Thanks, Ash http://www.ashleysheridan.co.uk |