Re: [users@httpd] Apache won't start, strace output enclosed
- Original Message -
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA512
>
> 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:
>
>
> StartServers 4
> MinSpareServers4
> MaxSpareServers 64
> ServerLimit 512
> MaxClients512
> MaxRequestsPerChild 512
>
>
> StartServers 4
> MaxClients 512
> MinSpareThreads 32
> MaxSpareThreads 64
> ThreadsPerChild 16
> MaxRequestsPerChild 0
>
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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>
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With kind regards,
Mathijs Schmittmann
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[users@httpd] Apache won't start, strace output enclosed
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
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.
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:
StartServers 4
MinSpareServers4
MaxSpareServers 64
ServerLimit 512
MaxClients512
MaxRequestsPerChild 512
StartServers 4
MaxClients 512
MinSpareThreads 32
MaxSpareThreads 64
ThreadsPerChild 16
MaxRequestsPerChild 0
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)
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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[users@httpd] Disable session expiry refreshing per request?
Hi, I've just started using Apache sessions in 2.4.7, in combination with mod_auth_form. It is working great. It is fronting a web app running under SCGI and that part is working fine as well. On a page that is protected by authentication I have ajax calls to urls that are also under authentication. The page refreshes the data periodically (via a timer that reruns the ajax, rerenders the display). An untended side effect is that the session never expires, since the ajax calls cause the session expiration to be refreshed. I need the ajax calls to use the session for authentication, but not refresh the expiration time (well, I may need to provide an option to let the user keep the session alive, but by default I think it should eventually expire.) What I would like to do is supply, say, an http header that would inhibit the refreshing of the expiration time. I did not find such in the documentation, or the question posted on the list. My question is -- is there such an option that I may have missed, or has any one accomplished this behavior through some other means? I can work around it by using a separate timer on the page that will automatically log the user out after a certain amount of time, but would rather also have a method that works with the native httpd session. Thanks, Erik.
