Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes
------------------------------

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Hello Gabriel,
Yes, that documentation help me to understand. 
Thanks.
Best regards,
Joao Pedro Alexandre

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Original Message:
Sent: Fri April 01, 2022 03:20 AM
From: Gabriel Aberasturi
Subject: worm manager vs alert manager

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Hi Joao Pedro, if you need some more information, here's potentially some more documentation I received from a WAS developer:

"Work Managers do not have alert threads and alert managers.  The documentation of the setting is here:
https://www.ibm.com/docs/en/was/8.5.5?topic=beans-configuring-work-managers

To summarize, a WorkManager uses its main thread pool to run Work.  It uses a separate thread pool to run Alarms."

Hope this helps as well.

Sergio.

------------------------------
Sergio Costa
Software Development Manager
IBM
Durham NC
9194549089
------------------------------

Original Message:
Sent: Fri April 01, 2022 06:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello Gabriel,
Yes, that documentation help me to understand. 
Thanks.
Best regards,
Joao Pedro Alexandre

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Fri April 01, 2022 03:20 AM
From: Gabriel Aberasturi
Subject: worm manager vs alert manager

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

I will check that documentation to clarify some of the doubts.
Thanks, Sergio.

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Original Message:
Sent: Tue April 05, 2022 05:16 PM
From: Sergio Costa
Subject: worm manager vs alert manager

Hi Joao Pedro, if you need some more information, here's potentially some more documentation I received from a WAS developer:

"Work Managers do not have alert threads and alert managers.  The documentation of the setting is here:
https://www.ibm.com/docs/en/was/8.5.5?topic=beans-configuring-work-managers

To summarize, a WorkManager uses its main thread pool to run Work.  It uses a separate thread pool to run Alarms."

Hope this helps as well.

Sergio.

------------------------------
Sergio Costa
Software Development Manager
IBM
Durham NC
9194549089

Original Message:
Sent: Fri April 01, 2022 06:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello Gabriel,
Yes, that documentation help me to understand. 
Thanks.
Best regards,
Joao Pedro Alexandre

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Fri April 01, 2022 03:20 AM
From: Gabriel Aberasturi
Subject: worm manager vs alert manager

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

I was reading all the documentation that was suggested and the conclusion that I reached is that I am in the hands of the developer, I have to speak with him and try to understand how he programmed this work that is initiated in the workmanager thread pool. How does it start? What schedules the work? Is it some message that arrives at some queue? Is it some subscription on a Topic? Or some other Event from an event listener?
An alarm is associated with a work manager that is associated with some asynchronous scope, the alarm runs java code at a given time interval, but again what it does and if it is even used by the developer I can only know talking with him to tell me what is the architecture of this application and what do what.
I am monitoring the work manager thread pools and got to a conclusion that in one of them I need to increase the max threads setting. Since I still do not know what starts the work or even if the alamManager is being used, I do not know if I need to monitor the Alarms. I did not find alarm thread pools in the Thread Pools PMI, so Is suppose they are not used. I am an infrastructure administrator, and my concern here is to create the necessary alarmistic to help us to define a baseline and identify problems when some metrics reach some values that are not 'normal' compared to the baseline we defined.

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

Original Message:
Sent: Wed April 06, 2022 05:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

I will check that documentation to clarify some of the doubts.
Thanks, Sergio.

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Tue April 05, 2022 05:16 PM
From: Sergio Costa
Subject: worm manager vs alert manager

Hi Joao Pedro, if you need some more information, here's potentially some more documentation I received from a WAS developer:

"Work Managers do not have alert threads and alert managers.  The documentation of the setting is here:
https://www.ibm.com/docs/en/was/8.5.5?topic=beans-configuring-work-managers

To summarize, a WorkManager uses its main thread pool to run Work.  It uses a separate thread pool to run Alarms."

Hope this helps as well.

Sergio.

------------------------------
Sergio Costa
Software Development Manager
IBM
Durham NC
9194549089

Original Message:
Sent: Fri April 01, 2022 06:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello Gabriel,
Yes, that documentation help me to understand. 
Thanks.
Best regards,
Joao Pedro Alexandre

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Fri April 01, 2022 03:20 AM
From: Gabriel Aberasturi
Subject: worm manager vs alert manager

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------

It sounds good. Let us know if we can be of further help after you talk to the developer(s).  Good luck!

Sergio.

------------------------------
Sergio Costa
Software Development Manager
IBM
Durham NC
9194549089
------------------------------

Original Message:
Sent: Wed April 06, 2022 06:17 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

I was reading all the documentation that was suggested and the conclusion that I reached is that I am in the hands of the developer, I have to speak with him and try to understand how he programmed this work that is initiated in the workmanager thread pool. How does it start? What schedules the work? Is it some message that arrives at some queue? Is it some subscription on a Topic? Or some other Event from an event listener?
An alarm is associated with a work manager that is associated with some asynchronous scope, the alarm runs java code at a given time interval, but again what it does and if it is even used by the developer I can only know talking with him to tell me what is the architecture of this application and what do what.
I am monitoring the work manager thread pools and got to a conclusion that in one of them I need to increase the max threads setting. Since I still do not know what starts the work or even if the alamManager is being used, I do not know if I need to monitor the Alarms. I did not find alarm thread pools in the Thread Pools PMI, so Is suppose they are not used. I am an infrastructure administrator, and my concern here is to create the necessary alarmistic to help us to define a baseline and identify problems when some metrics reach some values that are not 'normal' compared to the baseline we defined.

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Wed April 06, 2022 05:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

I will check that documentation to clarify some of the doubts.
Thanks, Sergio.

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Tue April 05, 2022 05:16 PM
From: Sergio Costa
Subject: worm manager vs alert manager

Hi Joao Pedro, if you need some more information, here's potentially some more documentation I received from a WAS developer:

"Work Managers do not have alert threads and alert managers.  The documentation of the setting is here:
https://www.ibm.com/docs/en/was/8.5.5?topic=beans-configuring-work-managers

To summarize, a WorkManager uses its main thread pool to run Work.  It uses a separate thread pool to run Alarms."

Hope this helps as well.

Sergio.

------------------------------
Sergio Costa
Software Development Manager
IBM
Durham NC
9194549089

Original Message:
Sent: Fri April 01, 2022 06:02 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello Gabriel,
Yes, that documentation help me to understand. 
Thanks.
Best regards,
Joao Pedro Alexandre

------------------------------
JOAO PEDRO ALEXANDRE

Original Message:
Sent: Fri April 01, 2022 03:20 AM
From: Gabriel Aberasturi
Subject: worm manager vs alert manager

Hello Joao,

Some information in WAS 8.5

- https://www.ibm.com/docs/en/was/8.5.5?topic=applications-developing-asynchronous-beans

When you are relating the work managers with the alert managers, do you mean this?

https://www.ibm.com/docs/en/was/8.5.5?topic=scopes-developing-asynchronous

In was 9.5 seems diferent

https://www.ibm.com/docs/en/was/9.0.5?topic=environment-administering-concurrency

https://www.ibm.com/docs/en/was/9.0.5?topic=applications-developing-concurrency

Hope this helps.

regards,

------------------------------
Gabriel Aberasturi
Versia tecnologias emergentes

Original Message:
Sent: Thu March 31, 2022 06:24 AM
From: JOAO PEDRO ALEXANDRE
Subject: worm manager vs alert manager

Hello,
I am a WAS Administrator and recently a developer asked me to define work managers.
I was reading about async beans and work managers and alert managers, but I can not find a place that explains me well what is the real relationship between the 'number of Alert threads' in the work manager configuration and the work that is really started.
I understood that it is these alert threads that wake up the thread in the work manager thread pool and makes it initiate the work. Is it right?
And if so, what starts the alert? I suppose it is controlled somehow by some application module since there are no schedulers defined in this server. I saw also some time manager definitions, but not sure they are related with this work managers.
Can anyone help me understand this better?

------------------------------
JOAO PEDRO ALEXANDRE
------------------------------