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Can't stop php process on fcgi mode and php process continue to grow

Hi all,

I can't stop php process on Sun one web 6.1 SP6 which running php as fcgi mode when restart or stop web server or start web server.

I have done the followings:

1. Install Sun one web server 6.1 sp6

2. Install Fcgi library

3. turn on fcgi mode

Service type="magnus-internal/fastcgi"

fn="responder-fastcgi"

app-path="/i03_01/SUNWwbsvr616/cgi-bin/php"

max-procs="30"

app-env="PHP_FCGI_CHILDREN=20"

app-env="PHP_FCGI_MAX_REQUEST=1000"

restart-interval="60"

app-env="PHPRC=/i03_01/SUNWwbsvr616/https-www/config"

4. Start web server (many php process created. e.g.

nobody 3045 3034 0 14:33:50 ? 0:00 /i03_01/SUNWwbsvr616/cgi-bin/php

nobody 3034 3033 1 14:33:47 ? 0:00 /i03_01/SUNWwbsvr616/cgi-bin/php

nobody 3053 3034 0 14:33:51 ? 0:00 /i03_01/SUNWwbsvr616/cgi-bin/php

nobody 3035 3034 0 14:33:48 ? 0:00 /i03_01/SUNWwbsvr616/cgi-bin/php

)

5. restart web server at 00:02 every day (by /<server-root>/<instance>/restart. (number of php process is growing. from 2x --> 4x, 4x -->6x, ..etc.)

6. try to stop web server (by /<server-root>/<instance>/stop) (php process still present)

Question:

1. how to stop the php process (can't remove the php process by "kill" command)?

2. why the php process continue to grow?

3. how to prevent the growing of php process?

Thanks.

[1469 byte] By [polyuitjerrya] at [2007-11-26 14:11:34]

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# 1

When the web server is stopped, plugin will try to terminate these PHP processes.

When you stop the webserver, do you still see "Fastcgistub" process ?

Can you post the Fastcgistub.log file messages ? This log will be under <webserver-temp-dir>

Is there any core dump (usually under <webserver-instance-dir>/config directory) ?

Seema.Aa at 2007-7-8 1:59:43 >

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# 2

I'm not having a problem with PHP termination. I'm running with PHP 5.4 and Web Server 7 preview 3 (using the bundled FastCGI library):

obj.conf:

Service fn=responder-fastcgi

app-path="/export/WS7/third-party/php/php_fcgi"

req-retry=5

type="*magnus-internal/fastcgi*"

app-env="PHPRC=/export/WS7/https-www.dzm.com/config"

app-env="PHP_FCGI_CHILDREN=5"

app-env="PHP_FCGI_MAX_REQUEST=200"

min-procs=1

restart-interval=10

bucket="php-bucket"

rlimit_cpu=60

php.ini:

session.bug_compat_42 = Off

session.bug_compat_warn = Off

magic_quotes_gpc = Off

memory_limit = 128M

post_max_size = 128M

upload_max_filesize = 128M

fastcgi.logging = true

zend_extension = /export/WS7/third-party/php_accel/php_accelerator_1.3.3r2.so

log_errors = on

error_log = /export/WS7/https-www/logs/php_errors

error_reporting = E_ALL & ~E_NOTICE

max_execution_time = 30

When I stop WS7 the PHP processes go away. When I start WS7 and get my first request for a PHP page the processes appear. I can kill the running processes (ps -A | grep php | awk '{print $1}' | xargs kill -9) and new ones are created.

You said that you're unable to kill the processes with a kill signal. This seems to indicate that they're stuck in a blocking call of some sort and are unable to accept new signals until the blocking call is completed. Have you tried using any debugging tools against the PHP processes to see what they're blocked on? Also - using WS7 perfdump will report the URI of the running threads. This can be handy to see which PHP app (or apps) the threads are getting stalled in.

JoeMcCabea at 2007-7-8 1:59:43 >

# 3

Hi all,

Here is the configuration for fastcgi:

Service type="magnus-internal/fastcgi"

fn="responder-fastcgi"

app-path="/i03_01/SUNWwbsvr616/cgi-bin/php"

max-procs="30"

app-env="PHP_FCGI_CHILDREN=20"

app-env="PHP_FCGI_MAX_REQUEST=1000"

restart-interval="60"

app-env="PHPRC=/i03_01/SUNWwbsvr616/https-www/config"

</Object>

Because my web server always to be accessed at any time and daily restart at 00:02 (by /<server-root>/<instance>/restart. not stop and then start).

When the webserver restart, i think the fastcgistub tries to terminate the those php processes. But the php processes are occupied. As a result, the number of php processes are grown from 21 to 42 (because PHP_FCGI_CHILDREN=20). Also, the number of FastCGIstub process increases from 1 to 2.

Any ways to prvent those such problem?

polyuitjerrya at 2007-7-8 1:59:43 >

# 4

- just wondering, why do you have to restart the instances every night ? what issue causes you to do this. - you will need to find out what is really going wrong. so, the best case would be to enable fastcgi logging in the php.ini file - as Joe has mentioned int he above post

chilidevelopera at 2007-7-8 1:59:43 >

# 5

Hi all,

The following is the Fastcgistub.log:

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 22744

clean stub

stopping child exit handler

stopping monitoring

terminating child - 22744

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 23859

clean stub

stopping child exit handler

stopping monitoring

terminating child - 23859

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 24858

clean stub

stopping child exit handler

stopping monitoring

terminating child - 24858

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 23185

removing the child 23185

created child - 27405

clean stub

stopping child exit handler

stopping monitoring

terminating child - 27405

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 4655

clean stub

stopping child exit handler

stopping monitoring

terminating child - 4655

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 4949

removing the child 4949

created child - 11441

removing the child 11441

created child - 16575

removing the child 16575

created child - 22806

removing the child 22806

created child - 28148

removing the child 28148

created child - 4444

removing the child 4444

created child - 8523

removing the child 8523

created child - 14046

removing the child 14046

created child - 18356

removing the child 18356

created child - 23362

removing the child 23362

created child - 27170

removing the child 27170

created child - 1881

removing the child 1881

created child - 5588

removing the child 5588

created child - 10625

removing the child 10625

created child - 14291

removing the child 14291

created child - 19113

clean stub

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

stub bind error

created child - 22030

stub bind error

server bind error

/i03_01/SUNWwbsvr616/cgi-bin/php bound to /tmp/https-www-5202fd18/php_21975 is already running

server bind error

created child - 22051

/i03_01/SUNWwbsvr616/cgi-bin/php bound to /tmp/https-www-5202fd18/php_21975 is already running

removing the child 22030

created child - 26779

removing the child 22051

created child - 26800

removing the child 26779

created child - 389

removing the child 26800

created child - 412

removing the child 389

created child - 12850

removing the child 412

created child - 12873

removing the child 12850

created child - 16180

removing the child 12873

created child - 16201

removing the child 16180

created child - 20722

removing the child 16201

created child - 20743

removing the child 20722

created child - 24265

removing the child 20743

created child - 24286

removing the child 24265

created child - 28963

removing the child 24286

created child - 28987

removing the child 28963

created child - 3379

removing the child 28987

created child - 3402

removing the child 3379

created child - 9240

removing the child 3402

created child - 9267

removing the child 9240

created child - 14279

removing the child 9267

created child - 14307

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 16425

removing the child 14279

created child - 20175

removing the child 14307

created child - 20202

removing the child 16425

created child - 22904

removing the child 20175

created child - 25006

removing the child 20202

created child - 25035

removing the child 22904

created child - 27000

removing the child 25006

created child - 23

removing the child 25035

created child - 52

removing the child 27000

created child - 1855

clean stub

stopping child exit handler

stopping monitoring

terminating child - 1855

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 2268

/i03_01/SUNWwbsvr616/cgi-bin/php bound to /tmp/https-www-5202fd18/php_2249 is already running

clean stub

stopping child exit handler

stopping monitoring

terminating child - 2268

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

<<<<<< ERROR LOG >>>>>>

Fastcgistub - version (1)

created child - 2525

stub bind error

server bind error

created child - 2548

/i03_01/SUNWwbsvr616/cgi-bin/php bound to /tmp/https-www-5202fd18/php_2468 is already running

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Can't stop php process on fcgi mode and php process continue to grow