Re: James 3.8, JPA Keeps Crashing // ActiveMQ Issue

Or having a folder for upgrade instructions, with a subfolder for each 
product and an upgrade instructions file in each. There might be some 
duplicated entries but at least it would be more straight forward for a 
user to know what upgrades he needs to do for the particular version of 
James he is using?

On 4/7/26 16:01, Quan tran hong wrote:
> Hi Rene,
>
> Talking about upgrading instruction docs improvement:
>
>> Regarding the migration from 3.8 to 3.9, here there is a file for
> upgrade instructions in general:
> https://github.com/apache/james-project/blob/master/upgrade-instructions.md#390-version
> I must admit people need to figure out which upgrade concerns which
> product, if concerned or not, it's not really practical sorry. We got
> room for improvement here I think too.
>
> Maybe we could think about a matrix table in upgrade-instructions.md:
> - row(s): list of changes
> - column(s): App variants (Distributed, JPA, Postgres...)
>
> The value would be a boolean: effected by the change or not.
>
> Quan
>
> On Tue, Apr 7, 2026 at 3:47 PM Rene Cordier <[email protected]> wrote:
>
>> Hi Gilberto,
>>
>> I ain't much of a JPA expert but I will try to answer to the best of my
>> capabilities, hoping it helps you.
>>
>> I think the EmbeddedActiveMq class creates a default activemq broker
>> with default storage settings, which must be around 20mb. The attachment
>> of your user seems slitghly bigger than this limit, filling up the
>> queue. James keeps crashing then I guess as the message keeps staying in
>> the queue.
>>
>> Is the faulty email important to keep or not? If not can try to clear
>> away the queue. The data of activemq should be inside the container at
>> /var/store/activemq.
>>
>> I think you can try to clean what's in
>> /var/store/activemq/brokers/KahaDB/* (cf
>>
>> https://github.com/apache/james-project/blob/3.8.x/server/queue/queue-activemq/src/main/java/org/apache/james/queue/activemq/EmbeddedActiveMQ.java
>> )
>>
>> I guess you could back up the data as well, from /var/store/activemq,
>> and reinject the data in an external volume with more space that you can
>> mount then in /var/store/activemq ?
>>
>> There is unfortunately no configuration for ActiveMQ storage space. The
>> configuration file would be activemq.properties, but I think it is just
>> about some metrics configuration so far. But maybe that could be a nice
>> contribution to propose?
>>
>> Regarding the migration from 3.8 to 3.9, here there is a file for
>> upgrade instructions in general:
>>
>> https://github.com/apache/james-project/blob/master/upgrade-instructions.md#390-version
>>
>> I must admit people need to figure out which upgrade concerns which
>> product, if concerned or not, it's not really practical sorry. We got
>> room for improvement here I think too.
>>
>> Let me know if this helps you.
>>
>> Good luck :)
>>
>> Rene.
>>
>> On 4/3/26 08:05, Gilberto Espinoza wrote:
>>> Hi Apache James Brain Trust,
>>>
>>> I am having issues with my James server. I am running James 3.8, JPA in a
>>> Docker Container. A user was attempting to email a large video file and
>>> that seems to have crashed the server. I get this message in the log
>> file:
>>> [WARN ] o.a.a.b.r.Queue - Usage(Main:store:queue://spool:store)
>>> percentUsage=100%, usage=20779975, limit=20765548,
>>> percentUsageMinDelta=1%;Parent:Usage(Main:store) percentUsage=100%,
>>> usage=20779975, limit=20765548, percentUsageMinDelta=1%: Persistent store
>>> is Full, 100% of 20765548. Stopping producer
>>> (ID:7a04cd6de807-43041-1775136440917-5:2:1:1) to prevent flooding
>>> queue://spool.
>>>
>>> I am struggling to figure out how to resolve this issue (I found this
>> link,
>>> but I am unable to figure where the ActiveMQ files are located) (
>>>
>> https://knowledge.informatica.com/s/article/Persistent-store-is-Full-100-of-Stopping-producer-ID-to-prevent-flooding-error-in-DataExchange-logs?language=en_US
>>> ).
>>>
>>> I would appreciate your help in resolving this issue (restarting the
>> server
>>> has not helped). How do you stop the "producer"?
>>>
>>> Also, where can I find the configuration file for ActiveMQ?
>>>
>>> I would also like to know how to back up the database files, if that is
>>> possible?
>>>
>>> Is there any documentation on how to migrate from 3.8 to 3.9?
>>>
>>> I look forward to any feedback.
>>>
>>> Best regards,
>>>
>>> Gil Espinoza
>>>
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