Yes, Deepak
the parent and child process are derived from same Base class.
i defined a function name main in base class with empty implememationa and
same got implemented for both parent and child in their own module.
Below is a skeleton of code. the parent process is spawned while
bootstrapping the httpd and then child process is spawned from parent. I
am using fork to spawn the process
package Test::Base;
#common functionalities will define here
#abstract main method. should implement in derived modules
sub main {}
}
1;
--------------------------------------------
package Test::Parent;
use base qw(Test::Base);
#specific functionality for Parent
#task of main to spawn and monitor the child process
sub main {
#spawn child process if its not spawned already
#check the spawned child process status. start the child process which
are not alive
}
1;
-----------------------------------------------------------------------------
package Test::Child;
use base qw(Test::Base);
#specific functionality of child process
sub main {
#check and execute the tasks of child continuously
#use ally its never ending loop to check and execute the tsak
#even if its come out , i will exit the child process using CORE::exit()
}
1;
On Fri, Sep 29, 2023 at 6:24 PM Deepak Goel <deic...@gmail.com> wrote:
> Obviously there is a common function which is being called by your server,
> client threads.
>
> You will have to share your code for us to find out what's going on.
>
> On Fri, 29 Sept 2023, 17:08 Sreenivasulu Alapaka, <
> sreenivasulu.alapaka...@gmail.com> wrote:
>
>> Hi Deepak,
>>
>>
>> *Client Monitor Workers is application specific log. This message will
>> be logged by the parent process in my application but not the child
>> process. In the issue state, I am seeing the *
>> *Client Monitor Workers in both parent and child logs as the child is
>> executing the tasks of the parent instead of its own. How can we
>> debug this?*
>>
>> On Fri, Sep 29, 2023 at 4:44 PM Deepak Goel <deic...@gmail.com> wrote:
>>
>>>
>>>
>>> On Fri, Sep 29, 2023 at 4:35 PM Sreenivasulu Alapaka <
>>> sreenivasulu.alapaka...@gmail.com> wrote:
>>>
>>>> Hi Deepak,
>>>>
>>>> Please find the logs below.
>>>> Parent task is to monitor the workers(childs) and then
>>>> remove/start additional workers based on the load.
>>>> its performing its task.
>>>> Parent process logs
>>>> =================
>>>> Wed Sep 27 20:36:36 2023: Started (PID: 3032)
>>>> Fri Sep 29 16:12:07 2023: Removing some Client Monitor Workers
>>>>
>>>
>>> I am not sure what is *Client Monitor Workers. *It might not be the
>>> same as *Client Workers.*
>>>
>>>
>>>> Fri Sep 29 16:12:18 2023: restarting Client Monitor Worker...
>>>> Fri Sep 29 16:12:33 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:12:54 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:13:06 2023: restarting Client Monitor Worker...
>>>> Fri Sep 29 16:13:22 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:13:36 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:13:54 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:14:09 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:14:23 2023: restarting Client Monitor Worker...
>>>> Fri Sep 29 16:14:39 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:14:54 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:15:08 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:15:27 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:15:42 2023: Starting additional Client Monitor Workers
>>>>
>>>> After spawning the child process , it works for some time properly and
>>>> then starts performing tasks of the parent.
>>>> Child process logs
>>>> ==================
>>>> Wed Sep 27 20:36:43 2023: Started (PID: 5321)
>>>> Wed Sep 27 20:41:16 2023: Synchronizing containment
>>>> Wed Sep 27 20:41:16 2023: Synchronizing containment
>>>> Wed Sep 27 20:41:17 2023: Sync complete; beginning audit
>>>> Wed Sep 27 20:41:19 2023: Audit finished.
>>>> Wed Sep 27 21:16:23 2023: Audit finished.
>>>> Wed Sep 27 21:16:23 2023: nothing to do
>>>> Wed Sep 27 21:43:39 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:43:54 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:44:09 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:44:24 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:44:39 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:44:54 2023: Removing some Client Monitor Workers
>>>> Wed Sep 27 21:45:09 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:13:29 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:13:44 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:13:58 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:14:17 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:14:32 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:14:51 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:15:06 2023: restarting Client Monitor Worker...
>>>> Fri Sep 29 16:15:22 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:15:36 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:16:00 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:16:10 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:16:30 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:16:45 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:17:06 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:17:20 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:17:40 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:17:55 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:18:09 2023: Starting additional Client Monitor Workers
>>>> Fri Sep 29 16:18:28 2023: Removing some Client Monitor Workers
>>>> Fri Sep 29 16:18:43 2023: Starting additional Client Monitor Workers
>>>>
>>>> Child process worked perfectly till Wed Sep 27 21:16:23 2023: and after
>>>> that I didn't see any logs. Suddenly it started dumping the parent process
>>>> logs from Wed Sep 27 21:43:39 2023. It's not recovering , it's required to
>>>> kill the child process then Parent process will spawn another child process
>>>> to do the task and the newly spawned child will work for some time and
>>>> again enter into the issue state.
>>>>
>>>> On Fri, Sep 29, 2023 at 4:17 PM Deepak Goel <deic...@gmail.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Fri, Sep 29, 2023 at 4:15 PM Sreenivasulu Alapaka <
>>>>> sreenivasulu.alapaka...@gmail.com> wrote:
>>>>>
>>>>>> Hi Deepak,
>>>>>>
>>>>>> I have specific logs for parent and child process and am
>>>>>> able to see the logs of parent process dumped in child process log with
>>>>>> child process id.
>>>>>>
>>>>>>
>>>>> Please share the log files..
>>>>>
>>>>>
>>>>>> On Fri, Sep 29, 2023 at 3:58 PM Deepak Goel <deic...@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Sep 29, 2023 at 3:52 PM Sreenivasulu Alapaka <
>>>>>>> sreenivasulu.alapaka...@gmail.com> wrote:
>>>>>>>
>>>>>>>> Hi Team,
>>>>>>>>
>>>>>>>> I am using httpd and mod_perl libraries to spawn the
>>>>>>>> process to execute the tasks. httpd will spawn a process which is
>>>>>>>> parent
>>>>>>>> and it will spawn the other child process to perform the tasks.
>>>>>>>> The parent process job is to monitor the child process
>>>>>>>> and the child process has to perform the functionality taks. All of
>>>>>>>> sudden
>>>>>>>> one of the child process is executing the tasks of the parent instead
>>>>>>>> of
>>>>>>>> the child process tasks.
>>>>>>>>
>>>>>>>> How did you infer that the child process is executing the parent
>>>>>>> task?
>>>>>>>
>>>>>>>
>>>>>>>> I am using RHEL8 environment and these below are
>>>>>>>> library versions.
>>>>>>>> Same piece of code worked in Cent 7.
>>>>>>>>
>>>>>>>> httpd: 2.4.6
>>>>>>>> mod_perl: 2.0.10
>>>>>>>>
>>>>>>>> Could you please help here, how to debug the issue?
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Thanks & Regards
>>>>>>>> *Sreenivasulu Alapaka*
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Deepak
>>>>>>> "The greatness of a nation can be judged by the way its animals are
>>>>>>> treated - Mahatma Gandhi"
>>>>>>>
>>>>>>> +91 73500 12833
>>>>>>> deic...@gmail.com
>>>>>>>
>>>>>>> Facebook: https://www.facebook.com/deicool
>>>>>>> LinkedIn: www.linkedin.com/in/deicool
>>>>>>>
>>>>>>> "Plant a Tree, Go Green"
>>>>>>>
>>>>>>> Make In India : http://www.makeinindia.com/home
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thanks & Regards
>>>>>> *Sreenivasulu Alapaka*
>>>>>>
>>>>>
>>>>
>>>> --
>>>> Thanks & Regards
>>>> *Sreenivasulu Alapaka*
>>>>
>>>
>>
>> --
>> Thanks & Regards
>> *Sreenivasulu Alapaka*
>>
>
--
Thanks & Regards
*Sreenivasulu Alapaka*
