#47 /functions/scripts/pingCheck.php > web gui freezes (v0.9)

[Volkan]

Hi if i start the /functions/scripts/pingCheck.php the gui becomes a loading state and freezes and nothing more happens.

The top command Show no Special things on the machine himself (?)

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32 root 20 0 0 0 0 S 0.3 0.0 0:02.94 kworker/1:1
7769 master 20 0 94848 1936 1012 S 0.3 0.2 0:00.01 sshd
7868 master 20 0 20652 1580 1112 R 0.3 0.2 0:00.09 top
1 root 20 0 26936 2756 1412 S 0.0 0.3 0:01.31 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
7 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuob/0
10 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuob/1
11 root 20 0 0 0 0 S 0.0 0.0 0:01.44 rcu_sched
12 root 20 0 0 0 0 S 0.0 0.0 0:01.68 rcuos/0
13 root 20 0 0 0 0 S 0.0 0.0 0:01.31 rcuos/1
14 root rt 0 0 0 0 S 0.0 0.0 0:00.90 watchdog/0
15 root rt 0 0 0 0 S 0.0 0.0 0:00.78 watchdog/1
16 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/1
17 root 20 0 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/1
19 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:0H
20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper
21 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs

Thats my config-scan.php

/

* Config file for network scanning paths etc

*/

//general configs
$scanMaxHosts = 16; // maximum number of scans per once
$scanDNSresolve = true; // try to resolve DNS name
$scanIPv6 = false; // not yet

//configs
$MAX_THREADS = 128; // set max concurrent threads

// ping path
$pathPing = "/bin/ping";

// nmap path
$pathNmap = "/usr/local/bin/nmap";

?>

Any idea or help?

thx
Volkan

[Volkan]

Ok, after a while i got this message:

Warning: Threading is not supported!

?

[Anonymous]

i got this message (Warning: Threading is not supported! ) too!!

what to do?

[Miha Petkovsek]

Hi, means that threading is not supported in your php installation, you need to configure it with pcntl php extension (php-cli).

Threading means it executes parallel pings (128 in your case), if threading is not possible it executes each ping, waits for response, than next ping etc. and it takes ages.

So just recompile php with pcntl extension and you will be fine.

brm

[Volkan]

Thank you miha, but i have no clue how to complile it and integrate/activate with the existiting ubuntu/php5 without installing all new... :(

Any tutorial/help for me?

thank you very much.
Volkan

[Miha Petkovsek]

Hi, have checked some online and it seems it is not that simple on ubuntu. Here is a link that might help you:
http://www.lahory.com/howto-enable-pcntl-in-ubuntu-php-installations/
also check php.ini for disabled functions, if there is some pcntl* inside...

If I'll have time I will install ubuntu on virtual machine and check what can be done.

brm

[Graham Oz]

I am having trouble with this script too. I did work without Threading (pcntl), but after installing pcntl it is having problems and just seems to hang. No web page displayed.
I have started to add some diagnostics to the php so I will give some more feedback on the progress.

BTW - thanks for your work Miha this is a great system.
Thanks,
Graham

[Miha Petkovsek]

Hi, what happens in this case:
- set Check hosts status to any subnet (at least 1)
- manually run cron script that checks IP address statuses: php /var/www/phpipam/functions/scripts/pingCheck.php

[Graham Oz]

Hi
I have been adding some diagnostics - for my case. There appears to be a problem in Thread.php. I have reached the point where I think it is the pcntl_signal function in the Start method. It appears the stop apache processing. Bear with me I am home and don't have the code in front of me.
But the sequence is like -
Start processing address list
If threading available - yes
Fork the process - success
Parent process had child PID
This happens a number of times
Later (asynchronous) first child process starts
Attempts to add signal using pcntl_signal()
Child process halts
Parent process halts too.

I hope this makes sense.

Graham

---

On 17 Dec 2013, at 6:38 pm, "Miha Petkovsek" myha@users.sf.net wrote:

Hi, what happens in this case:
- set Check hosts status to any subnet (at least 1)
- manually run cron script that checks IP address statuses: php /var/www/phpipam/functions/scripts/pingCheck.php

[support-requests:#47] /functions/scripts/pingCheck.php > web gui freezes (v0.9)

Status: open
Created: Thu Nov 14, 2013 10:16 AM UTC by Volkan
Last Updated: Mon Dec 16, 2013 11:13 PM UTC
Owner: nobody

Hi if i start the /functions/scripts/pingCheck.php the gui becomes a loading state and freezes and nothing more happens.

The top command Show no Special things on the machine himself (?)

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32 root 20 0 0 0 0 S 0.3 0.0 0:02.94 kworker/1:1
7769 master 20 0 94848 1936 1012 S 0.3 0.2 0:00.01 sshd
7868 master 20 0 20652 1580 1112 R 0.3 0.2 0:00.09 top
1 root 20 0 26936 2756 1412 S 0.0 0.3 0:01.31 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
7 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuob/0
10 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuob/1
11 root 20 0 0 0 0 S 0.0 0.0 0:01.44 rcu_sched
12 root 20 0 0 0 0 S 0.0 0.0 0:01.68 rcuos/0
13 root 20 0 0 0 0 S 0.0 0.0 0:01.31 rcuos/1
14 root rt 0 0 0 0 S 0.0 0.0 0:00.90 watchdog/0
15 root rt 0 0 0 0 S 0.0 0.0 0:00.78 watchdog/1
16 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/1
17 root 20 0 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/1
19 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:0H
20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper
21 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs

Thats my config-scan.php

/

• Config file for network scanning paths etc

*/
//general configs
$scanMaxHosts = 16; // maximum number of scans per once
$scanDNSresolve = true; // try to resolve DNS name
$scanIPv6 = false; // not yet

//configs
$MAX_THREADS = 128; // set max concurrent threads

// ping path
$pathPing = "/bin/ping";

// nmap path
$pathNmap = "/usr/local/bin/nmap";

?>

Any idea or help?

thx
Volkan

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[Anonymous]

[Graham Oz]

Hi,

Can these post be edited after submitting?
Graham

[Graham Oz]

Also my issues are with v0.9.
I am still trying to work it out.

Graham

[Graham Oz]

Hi,
I feel like a goose.
As shown by Miha above, pingCheck.php must be run from the command line, or cron job.
php /var/www/phpipam/functions/scripts/pingCheck.php

It cannot be run in a web browser as - http://xxx.xx.xx.xx/phpipam/functions/scripts/pingCheck.php

Thanks,
Graham

[Anonymous]