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> Hi all,
>
> Ack!
>
> This is apache 2.2.25 compiled from source but on a CentOS 6.5 system.
> Notably, I included all modules in the build.
You might want to start to build with a minimal set of modules, to exclude any of them from being the cause. Why did you compile with all modules to start with?
>
> I was trying to add a subdomain, ran into memory allocation problems
> and so tweaked the settings accordingly. Here are the current settings
> and I have no idea how sensible they are:
>
> <IfModule prefork.c>
> StartServers 4
> MinSpareServers 4
> MaxSpareServers 64
> ServerLimit 512
> MaxClients 512
> MaxRequestsPerChild 512
> </IfModule>
> <IfModule worker.c>
> StartServers 4
> MaxClients 512
> MinSpareThreads 32
> MaxSpareThreads 64
> ThreadsPerChild 16
> MaxRequestsPerChild 0
> </IfModule>
This depends on which MPM you are currently running, see your httpd -V output for this information. Obviously the specific settings will be different in each usecase, depending on load and resources available.
>
> Now it won't start at all and writes nothing to the error log. So I
> managed to get strace going on it. These are the last few lines of the
> output:
>
> open("/etc/localtime", O_RDONLY) = 82
> fstat(82, {st_mode=S_IFREG|0644, st_size=2819, ...}) = 0
> fstat(82, {st_mode=S_IFREG|0644, st_size=2819, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x7fce20292000
> read(82,
> "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0\0\0\0"...,
> 4096) = 2819
> lseek(82, -1802, SEEK_CUR) = 1017
> read(82,
> "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\5\0\0\0\5\0\0\0\0"...,
> 4096) = 1802
> close(82) = 0
> munmap(0x7fce20292000, 4096) = 0
> write(43, "[Thu Jan 16 19:49:38 2014] [erro"..., 98) = 98
> exit_group(1)
The last write call shows that its logging an error to the errorlog, are you sure you have looked at the right errorlog? You might want to try to 'strace -s 4096 ...' so the entire message is captured in the trace.
>
> As you might imagine, I'm in a bit of a panic. What's going wrong?
>
> Thanks!
> - --
> David Benfell
> see https://parts-unknown.org/node/2 if you don't understand the
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With kind regards,
Mathijs Schmittmann
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