add separate runtime participant in transaction manager

[Ketan Pawar]

Hi,

As I know, if we do any change in deploy/*.xml,  those descriptor xml file gets reloaded at runtime.

Consider we have one transaction manager with 2 participants. And we created new participant with separate jars. If we copied the new participant jar at deploy/lib directory and did changes in respective xml descriptor for addition of this new participant, We received the exceptions that particular class is not found and descriptor doesn't get deployed.

Is it like that we cannot add new separate participant in xml descriptor?
If we add, is it mandatory to restart the Q2?


Thanks,
Ketan

[chhil]

We as a rule don't allow hot deployment of transaction managers. We ask clients to stop q2 make changes and then restart. It's more manageable compared to behavioral changes that can impact active participants. 

If you are really looking for hot deployment of classes you should look at something like jrebel. 

-chhil 

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[Andy Orrock]

Emphatically seconded -- on-the-fly TM updates are a bad practice.

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Andy

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[Alejandro Revilla]

Do you get to see a message new classloader [xxxxxxx] has been created in the q2.log ?

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@apr

[Ketan Pawar]

Hi Alejandro,

There is no such message in q2.log



Thanks,
Ketan

[Alejandro Revilla]

Can you try "touching" the `deploy/lib` directory?

Q2 monitors its timestamp in order to know when it has to create a new dynamic classloader.

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