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The following page has been changed by MarcMongenet: http://wiki.apache.org/httpd/ModuleLife ------------------------------------------------------------------------------ APR_LOCK_DEFAULT, pconf); }}} - == Locking through graceful restart == + == Race conditions during graceful restart == - During a graceful restart, old children are still serving old requests while new children are serving new requests. If the same lock must be used by old and new children, then the lock name must be the same and cannot be generated with tmpnam() or similar functions. + During a graceful restart, old children are still serving old requests while new children are serving new requests. If the same lock must be used by old and new children, then the lock name must be the same and cannot be generated with tmpnam() or similar functions in the post_config hook. == Preventing module unloading == To prevent module unloading, there is a ''sick and twisted hack'' (wrowe dixit): "the evil method is to use apr_dso_load() against the process pool to load it 'permanently'".
