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Diffstat (limited to 'docs/configuration-directives/WSGISocketPrefix.rst')
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diff --git a/docs/configuration-directives/WSGISocketPrefix.rst b/docs/configuration-directives/WSGISocketPrefix.rst new file mode 100644 index 0000000..dfcd707 --- /dev/null +++ b/docs/configuration-directives/WSGISocketPrefix.rst @@ -0,0 +1,43 @@ +================ +WSGISocketPrefix +================ + +:Description: Configure directory to use for daemon sockets. +:Syntax: ``WSGISocketPrefix`` *prefix* +:Context: server config + +Defines the directory and name prefix to be used for the UNIX domain +sockets used by mod_wsgi to communicate between the Apache child processes +and the daemon processes. + +If the directive is not defined, the sockets and any related mutex lock +files will be placed in the standard Apache runtime directory. This is the +same directory that the Apache log files would normally be placed. + +For some Linux distributions, restrictive permissions are placed on the +standard Apache runtime directory such that the directory is not readable +to others. This can cause problems with mod_wsgi because the user that the +Apache child processes run as will subsequently not have the required +permissions to access the directory to be able to connect to the sockets. + +When this occurs, a '503 Service Temporarily Unavailable' error response +would be received by the client. To resolve the problem, the +WSGISocketPrefix directive should be defined to point at an alternate +location. The value may be a location relative to the Apache root directory, +or an absolute path. + +On systems which restrict access to the standard Apache runtime directory, +they normally provide an alternate directory for placing sockets and lock +files used by Apache modules. This directory is usually called 'run' and +to make use of this directory the WSGISocketPrefix directive would be set +as follows:: + + WSGISocketPrefix run/wsgi + +Note, do not put the sockets in the system temporary working directory. +That is, do not go making the prefix '/tmp/wsgi'. The directory should be +one that is only writable by 'root' user, or if not starting Apache as +'root', the user that Apache is started as. + +Note that the WSGISocketPrefix directive and corresponding features are not +available on Windows or when running Apache 1.3. |