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Diffstat (limited to 'mod_glusterfs/apache/1.3/src/README.txt')
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diff --git a/mod_glusterfs/apache/1.3/src/README.txt b/mod_glusterfs/apache/1.3/src/README.txt deleted file mode 100644 index 378a51d79ae..00000000000 --- a/mod_glusterfs/apache/1.3/src/README.txt +++ /dev/null @@ -1,107 +0,0 @@ -What is mod_glusterfs? -====================== -* mod_glusterfs is a module for apache written for efficient serving of files from glusterfs. - mod_glusterfs interfaces with glusterfs using apis provided by libglusterfsclient. - -* this README speaks about installation of apache-1.3.x, where x is any minor version. - -Prerequisites for mod_glusterfs -=============================== -Though mod_glusterfs has been written as a module, with an intent of making no changes to the way apache has -been built, currently following points have to be taken care of: - -* module "so" has to be enabled, for apache to support modules. -* since glusterfs is compiled with _FILE_OFFSET_BITS=64 and __USE_FILE_OFFSET64 flags, mod_glusterfs and apache - in turn have to be compiled with the above two flags. - - $ tar xzvf apache-1.3.9.tar.gz - $ cd apache-1.3.9/ - $ # add -D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64 to EXTRA_CFLAGS in src/Configuration. - $ ./configure --prefix=/usr --enable-module=so - $ cd src - $ ./Configure - $ cd ../ - $ make install - $ httpd -l | grep -i mod_so - mod_so.c - -* if multiple apache installations are present, make sure to pass --with-apxs=/path/to/apxs/of/proper/version to configure script while building glusterfs. - -Build/Install mod_glusterfs -=========================== -* mod_glusterfs is provided with glusterfs--mainline--3.0 and all releases from the same branch. - -* building glusterfs also builds mod_glusterfs. But 'make install' of glusterfs installs mod_glusterfs.so to - glusterfs install directory instead of the apache modules directory. - -* 'make install' of glusterfs will print a message similar to the one given below, which is self explanatory. - Make sure to use apxs of proper apache version in case of multiple apache installations. This will copy - mod_glusterfs.so to modules directory of proper apache version and modify the appropriate httpd.conf to enable - mod_glusterfs. - -********************************************************************************************** -* TO INSTALL MODGLUSTERFS, PLEASE USE, -* apxs -n mod_glusterfs -ia /usr/lib/glusterfs/1.4.0pre2/apache-1.3/mod_glusterfs.so -********************************************************************************************** - -Configuration -============= -* Following configuration has to be added to httpd.conf. - - <Location "/glusterfs"> - GlusterfsLogfile "/var/log/glusterfs/glusterfs.log" - GlusterfsLoglevel "warning" - GlusterfsVolumeSpecfile "/etc/glusterfs/glusterfs-client.spec" - GlusterfsCacheTimeout "600" - GlusterfsXattrFileSize "65536" - SetHandler "glusterfs-handler" - </Location> - -* GlusterfsVolumeSpecfile (COMPULSORY) - Path to the the glusterfs volume specification file. - -* GlusterfsLogfile (COMPULSORY) - Path to the glusterfs logfile. - -* GlusterfsLoglevel (OPTIONAL, default = warning) - Severity of messages that are to be logged. Allowed values are critical, error, warning, debug, none - in the decreasing order of severity. - -* GlusterfsCacheTimeOut (OPTIONAL, default = 0) - Timeout values for glusterfs stat and lookup cache. - -* GlusterfsXattrFileSize (OPTIONAL, default = 0) - Files with sizes upto and including this value are fetched through the extended attribute interface of - glusterfs rather than the usual open-read-close set of operations. For files of small sizes, it is recommended - to use extended attribute interface. - -* With the above configuration all the requests to httpd of the form www.example.org/glusterfs/path/to/file are - served from glusterfs. - -Miscellaneous points -==================== -* httpd by default runs with username "nobody" and group "nogroup". Permissions of logfile and specfile have to - be set suitably. - -* Since mod_glusterfs runs with permissions of nobody.nogroup, glusterfs has to use only login based - authentication. See docs/authentication.txt for more details. - -* To copy the data served by httpd into glusterfs mountpoint, glusterfs can be started with the - volume-specification file provided to mod_glusterfs. Any tool like cp can then be used. - -* To run in gdb, apache has to be compiled with -lpthread, since libglusterfsclient is multithreaded. - If not on Linux gdb runs into errors like: - "Error while reading shared library symbols: - Cannot find new threads: generic error" - -* when used with ib-verbs transport, ib_verbs initialization fails. - reason for this is that apache runs as non-privileged user and the amount of memory that can be - locked by default is not sufficient for ib-verbs. to fix this, as root run, - - # ulimit -l unlimited - - and then start apache. - -TODO -==== -* directory listing for the directories accessed through mod_glusterfs. |