Will fastsocket work with other kernel?

[igroykt]

Will fastsocket work if i'm using 2.6.32-504 kernel? Or it will work only with patched kernel (with included kernel)?

[gfreewind]

Yes. The fastsocket is based on 2.6.32

[igroykt]

thank for answer but it didnt work with 2.6.32-504 kernel (LD_LOAD=/lib64/libfsocket.so nginx and nothing happens). with included kernel it seems like work fine but how can i check if nginx started with libfsocket?

ps -ef|grep nginx root 3098 1 0 14:17 ? 00:00:00 nginx: master process nginx nginx 3099 3098 0 14:17 ? 00:00:00 nginx: worker process nginx 3100 3098 0 14:17 ? 00:00:00 nginx: worker process nginx 3101 3098 0 14:17 ? 00:00:00 nginx: cache manager process root 7001 4155 0 14:43 pts/0 00:00:00 grep nginx pmap 3098|grep .so 00007f0ed2edb000 48K r-x-- /lib64/libnss_files-2.12.so 00007f0ed2ee7000 2048K ----- /lib64/libnss_files-2.12.so 00007f0ed30e7000 4K r---- /lib64/libnss_files-2.12.so 00007f0ed30e8000 4K rw--- /lib64/libnss_files-2.12.so 00007f0ed30e9000 8K r-x-- /lib64/libfreebl3.so 00007f0ed30eb000 2044K ----- /lib64/libfreebl3.so 00007f0ed32ea000 4K r---- /lib64/libfreebl3.so 00007f0ed32eb000 4K rw--- /lib64/libfreebl3.so 00007f0ed32ec000 1576K r-x-- /lib64/libc-2.12.so 00007f0ed3476000 2048K ----- /lib64/libc-2.12.so 00007f0ed3676000 16K r---- /lib64/libc-2.12.so 00007f0ed367a000 4K rw--- /lib64/libc-2.12.so 00007f0ed3680000 84K r-x-- /lib64/libz.so.1.2.3 00007f0ed3695000 2044K ----- /lib64/libz.so.1.2.3 00007f0ed3894000 4K r---- /lib64/libz.so.1.2.3 00007f0ed3895000 4K rw--- /lib64/libz.so.1.2.3 00007f0ed3896000 8K r-x-- /lib64/libdl-2.12.so 00007f0ed3898000 2048K ----- /lib64/libdl-2.12.so 00007f0ed3a98000 4K r---- /lib64/libdl-2.12.so 00007f0ed3a99000 4K rw--- /lib64/libdl-2.12.so 00007f0ed3a9a000 176K r-x-- /lib64/libpcre.so.0.0.1 00007f0ed3ac6000 2048K ----- /lib64/libpcre.so.0.0.1 00007f0ed3cc6000 4K rw--- /lib64/libpcre.so.0.0.1 00007f0ed3cc7000 28K r-x-- /lib64/libcrypt-2.12.so 00007f0ed3cce000 2048K ----- /lib64/libcrypt-2.12.so 00007f0ed3ece000 4K r---- /lib64/libcrypt-2.12.so 00007f0ed3ecf000 4K rw--- /lib64/libcrypt-2.12.so 00007f0ed3efe000 92K r-x-- /lib64/libpthread-2.12.so 00007f0ed3f15000 2048K ----- /lib64/libpthread-2.12.so 00007f0ed4115000 4K r---- /lib64/libpthread-2.12.so 00007f0ed4116000 4K rw--- /lib64/libpthread-2.12.so 00007f0ed411b000 128K r-x-- /lib64/ld-2.12.so 00007f0ed433a000 4K r---- /lib64/ld-2.12.so 00007f0ed433b000 4K rw--- /lib64/ld-2.12.so

[gfreewind]

You typo wrong word. It is "LD_PRELOAD", not "LD_LOAD"

[igroykt]

@gfreewind oh my mistake. now nginx wont start with LD_PRELOAD.

LD_PRELOAD=/lib64/libfsocket.so nginx ps -ef|grep nginx root 12250 12221 0 22:12 pts/0 00:00:00 grep nginx uname -a 2.6.32-431.29.2.el6.FASTSOCKET #2 SMP Sun Nov 8 01:27:25 YAKT 2015 x86_64 x86_64 x86_64 GNU/Linux

and there is no error messages in error.log or syslog.

ups! it work now. thank for help.

00007f46de6c9000 8K r-x-- /lib64/libfsocket.so 00007f46de6cb000 2044K ----- /lib64/libfsocket.so 00007f46de8ca000 4K rw--- /lib64/libfsocket.so

[gfreewind]

NP. Be free to raise the question.

[igroykt]

@gfreewind apache not working with fsocket? i see in child processes here is how i modified init script:

httpd=${HTTPD-LD_PRELOAD=/lib64/libfsocket.so /usr/sbin/httpd}

and here is how it starts:

start() { echo -n $"Starting $prog: " LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS RETVAL=$? echo [ $RETVAL = 0 ] && touch ${lockfile} return $RETVAL }

and after restart of httpd i saw 502 error until nginx restart. some kind of cache?

[gfreewind]

It could support apache. Which cache?

[igroykt]

@gfreewind hmmm...will take a look at strace output later. nginx gives error 502 until i restarted him (tried to restart apache 3 times before restarting nginx). may be it related with that:

Mysql2::Error: MySQL server has gone away: SHOW FULL FIELDS FROM settings Completed 500 Internal Server Error in 17ms (ActiveRecord: 0.4ms) ActiveRecord::StatementInvalid (Mysql2::Error: MySQL server has gone away: SHOW FULL FIELDS FROM settings): app/models/setting.rb:186:in check_cache' app/controllers/application_controller.rb:102:inuser_setup'

seems like temporary problem at startup. mysql show this error within 2-3 minutes after start.

[igroykt]

i can't debug httpd. parent process doesn't show any errors and childs die too often.

[gfreewind]

Why you couldn't debug it ? you could try the gdb and let it trace the child process

[igroykt]

@gfreewind because gdb says that i need some debug packages for some php modules but i can't find them in repositories. Will try later on naked httpd under VM.