[Seaside] Seaside image health check

Philippe Marschall philippe.marschall at gmail.com
Thu Dec 22 15:39:56 UTC 2011

2011/12/22 Paul DeBruicker <pdebruic at gmail.com>:
> I have a Pharo 1.3-13315/Seaside headless image on 64bit linux that
> sometimes stops responding to HTTP requests and acts like its in an infinite
> loop. If I connect to that image with the RFB after a couple minutes I can
> enter my password and it drops out of the infinite loop and resumes
> answering HTTP requests as if nothing was wrong.  The hang happens
> irregularly and I haven't yet been able to get access to a debugger when it
> is hanging.  CPUWatcher doesn't catch it either.
> I'm thinking to use the Scheduler package + ZnClient to send a request from
> that image to itself requesting a page, and if it times out, to write the
> ProcessBrowser + CPU usage data to a log file.
> Is there an established/better/other way to attempt to diagnose these
> intermittent hangs?

If the RFB fixes it it's may be the opposite of an infinite loop.
Nothing happening because of a Socket/Semaphore/ProcessScheduler
issue. The next time it happens can you check the CPU load with top to
make sure?


More information about the seaside mailing list