================ DeadlockDebugger ================ *$Id: README.txt,v 1.1 2005/02/23 15:35:21 fguillaume Exp $* This product adds a hook so that a deadlocked Zope process can be debugged, by dumping a traceback of all running python processes. The dump is sent to the event log (at the DEBUG level) and returned to the browser (even though the Zope is deadlocked and doesn't answer any other requests!). DeadlockDebugger can of course also be used in non-deadlock situations, when a Zope process is taking a long time and you wish to know what code is being executed. Configuration ------------- You must edit your zope.conf file and add product configuration: <product-config deadlockdebugger> dump_url /manage_debug_threads secret mysecretkey </product-config> secret is optional. Usage ----- The standard way to call it is to go to the URL:: http://yourzopesite:8080/manage_debug_threads?yoursecret This will return a dump, and also send this dump to the event log. A secret is needed because Zope doesn't do any access control on the URL (it is intercepted too early), and the thread traceback dump may return sensitive information about the requests being executed. If you know your Zope will only be accessed by authorized persons anyway, you can set secret to the empty string, and just call:: http://yourzopesite:8080/manage_debug_threads In any case you should filter out 'manage_debug_threads' in your front-end proxy. Credits ------- This product is sponsored by Nuxeo <http://nuxeo.com>. Please contact Florent Guillaume <email@example.com> for problems. You can use the firstname.lastname@example.org mailing-list to discuss this product.
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