Mailing List Archive

On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
sreenivasulu.alapaka504@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
deicool@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

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.

On Fri, Sep 29, 2023 at 3:58?PM Deepak Goel <deicool@gmail.com> wrote:

>
>
> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
> sreenivasulu.alapaka504@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
> deicool@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*

On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>
>>
>>
>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>> sreenivasulu.alapaka504@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
>> deicool@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*
>

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
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 <deicool@gmail.com> wrote:

>
>
> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>
>>>
>>>
>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>> sreenivasulu.alapaka504@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
>>> deicool@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*

On Fri, Sep 29, 2023 at 4:35?PM Sreenivasulu Alapaka <
sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>
>>
>>
>> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>>> sreenivasulu.alapaka504@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
>>>> deicool@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*
>

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 <deicool@gmail.com> wrote:

>
>
> On Fri, Sep 29, 2023 at 4:35?PM Sreenivasulu Alapaka <
> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>
>>>
>>>
>>> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
>>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>>>> sreenivasulu.alapaka504@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
>>>>> deicool@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*

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.alapaka504@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 <deicool@gmail.com> wrote:
>
>>
>>
>> On Fri, Sep 29, 2023 at 4:35?PM Sreenivasulu Alapaka <
>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
>>>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>>>>> sreenivasulu.alapaka504@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
>>>>>> deicool@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*
>

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 <deicool@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.alapaka504@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 <deicool@gmail.com> wrote:
>>
>>>
>>>
>>> On Fri, Sep 29, 2023 at 4:35?PM Sreenivasulu Alapaka <
>>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
>>>>> sreenivasulu.alapaka504@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 <deicool@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>>>>>> sreenivasulu.alapaka504@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
>>>>>>> deicool@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*

It might be interesting to know how "fork" works...

On Fri, 29 Sept 2023, 19:56 Sreenivasulu Alapaka, <
sreenivasulu.alapaka504@gmail.com> wrote:

> 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 <deicool@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.alapaka504@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 <deicool@gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On Fri, Sep 29, 2023 at 4:35?PM Sreenivasulu Alapaka <
>>>> sreenivasulu.alapaka504@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 <deicool@gmail.com> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Sep 29, 2023 at 4:15?PM Sreenivasulu Alapaka <
>>>>>> sreenivasulu.alapaka504@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 <deicool@gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Sep 29, 2023 at 3:52?PM Sreenivasulu Alapaka <
>>>>>>>> sreenivasulu.alapaka504@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
>>>>>>>> deicool@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*
>

It’s not the point of this distribution list to discuss Perl, but fork will
return the process id for both processes. A simple pattern for the source
code looks like:

pid = fork();
if (pid==0){print "do the child things";}
else {print "do parent things"}

You want to aim your script semantics according to the pid. This is because
the source code is executed by both processes.