Large File Support For Apache 2.0 Agent

Large file support is added for the Apache 2.0 agent. Support for the large file option is specifically needed because the latest versions of the Solaris 10 OS, both SPARC and x86 platforms, include a pre-installed Apache server with large file support enabled.

With update 2.2-02, two shared objects are included with the Apache agent:

• libamapc2.largefile.so - The Apache server was built with the large file option enabled.

• libamapc2.so - The Apache server was built with the large file option not enabled.

Non-large file support is the default. For an Apache 2.0 server with the large file option enabled, you might need to backup libamacp2.so and then copy libamapc2.largefile.so to the location of libamapac2.so.

To check for the large file option, use apxs -q CFLAGS. If the large file option is enabled, the command shows -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64. The agent's large file supported library is built using these compiler flags.

Important: If third-party components such as php or mod_perl are deployed on an Apache server that is built with the large file option set, these components also need to be compiled with the large file options set. Generally, use the Apache server header files during the compilation of these third-party components. Header files that are generated by Apache after enabling the large file support need to be used in these compilations.