Re: ActiveMQ locking mechanism and data on unique database data sources

2021-08-09 Thread Vince Cox
Tim, Are you aware of ActiveMQ moving towards using a bulkhead pattern? Thank you. Vince On 7/28/21, 10:53 AM, "Vince Cox" wrote: Tim, Since they have experienced such an issue with leader election, they are requesting implementing a bulk head pattern to increase the resiliency of

Re: ActiveMQ locking mechanism and data on unique database data sources

2021-07-28 Thread Vince Cox
Tim, Since they have experienced such an issue with leader election, they are requesting implementing a bulk head pattern to increase the resiliency of ActiveMQ Vince On 7/12/21, 10:27 AM, "Vince Cox" wrote: Tim, I understand your point of view completely. I have a customer that ru

Re: ActiveMQ locking mechanism and data on unique database data sources

2021-07-16 Thread Tim Bain
Vince, Both the jdbcPersistenceAdapter and the leaseDatabaseLocker appear to accept a dataSource parameter. I wasn't clear from your original question whether you were using two different dataSource objects (each one pointing to a different Oracle database). Your first sentence sounded like you we

Re: ActiveMQ locking mechanism and data on unique database data sources

2021-07-13 Thread Tim Bain
Vince, Thanks for explaining the use case. I'm surprised to hear that moderate load is enough to make the lock table inaccessible, and it makes me question whether they have Oracle properly configured and on adequately sized hardware, but that's a separate question, for them to resolve if they cho

Re: ActiveMQ locking mechanism and data on unique database data sources

2021-07-12 Thread Vince Cox
Tim, I understand your point of view completely. I have a customer that runs Oracle. When they have moderate traffic they experience a failover event between the Master/Slave. And it appears to come from an inability to access the lock in time causing the slave to take over. When they first cam

Re: ActiveMQ locking mechanism and data on unique database data sources

2021-07-12 Thread Tim Bain
To confirm, are you saying that you're trying to use one Oracle database for message storage and a different Oracle database for locking? If so, would you mind explaining why you're not just using a single database for both purposes? I have no idea if the configuration I think you're describing is