I am using AWS but i dont know how to check CoreDumpDirectory exist or not. if not how to create this and which path?? I am trying this but not got any solution How to get a core dump from apache when segfaulting
As ever the documentation comes to the rescue CoreDumpDirecrory is an Apache httpd configuration directive which is set within your httpd configuration files . If you have not configured CoreDumpDirectory then the documentation says it will default to the location of ServerRoot (the details of which can also be found in the documentation).
All I had to do to find this information was enter CoreDumpDirecrory into google search, follow the first link and read the documentation. You should try it.