Matt, Glad you brought that up. I did a small test, and I was able to migrate from 5.5.1 to 6.1.7 from simply copying the kahadb directory over. The 6.1.7 broker does report the “KahaDB is version 3”, but the broker is able to read it. It appears that it upgrades the kahadb directory after you restart because the broker then reports: “KahaDB is version 7”. Everything seems to work from the small test that I did.
Regards, William Crowell From: Matt Pavlovich <mattr...@apache.org> Date: Tuesday, July 22, 2025 at 7:53 PM To: users@activemq.apache.org <users@activemq.apache.org> Subject: Re: abortSlowConsumerStrategy pre-ActiveMQ Classic 5.9 You can generally upgrade KahaDB to newer versions. For v5.5.x -> v5.19.0 you should test ahead of time to confirm. > On Jul 22, 2025, at 4:00 PM, William Crowell <wcrow...@perforce.com.INVALID> > wrote: > > Matt, > > Is the KahaDB version different between 5.5.1 and 5.19.0? I would think so. > That would be one issue. > > Thanks, > > William Crowell > > From: Matt Pavlovich <mattr...@apache.org> > Date: Tuesday, July 22, 2025 at 4:59 PM > To: users@activemq.apache.org <users@activemq.apache.org> > Subject: Re: abortSlowConsumerStrategy pre-ActiveMQ Classic 5.9 > There are a _ton_ of changes up to v5.9.x. I think it would be more work > than upgrading to get that feature back ported. > > What is preventing an upgrade? The broker supports multiple openwire versions > pretty well, should be able to update the broker without forcing clients to > upgrade. > > Matt Pavlovich > >> On Jul 22, 2025, at 8:47 AM, William Crowell <wcrow...@perforce.com.INVALID> >> wrote: >> >> Good morning, >> >> I have a situation where I am stuck running ActiveMQ Classic 5.5.1 (which is >> almost 14 years old). Is there any mechanism pre-ActiveMQ Classic 5.9 that >> would provide functionality similar to abortSlowConsumerStrategy for queues? >> >> https://github.com/apache/activemq/blob/main/activemq-broker/src/main/java/org/apache/activemq/broker/region/policy/AbortSlowConsumerStrategy.java >> >> The only link I was able to come up with is: >> >> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Factivemq.apache.org%2Fcomponents%2Fclassic%2Fdocumentation%2Fslow-consumer-handling&data=05%7C02%7CWCrowell%40perforce.com%7C55055e292f0c42293af208ddc97ae401%7C95b666d19a7549ab95a38969fbcdc08c%7C0%7C0%7C638888251832838321%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=ckGkAndDy0DQwflAF7cALx%2Bo9ScUHwiPPa7LgFQKMGQ%3D&reserved=0<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Factivemq.apache.org%2Fcomponents%2Fclassic%2Fdocumentation%2Fslow-consumer-handling&data=05%7C02%7CWCrowell%40perforce.com%7C55055e292f0c42293af208ddc97ae401%7C95b666d19a7549ab95a38969fbcdc08c%7C0%7C0%7C638888251832874586%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=j%2BOkmtOFuNWk8aS9nbz1TNOIZVetxGkWklFzQ28%2BsRA%3D&reserved=0><https://activemq.apache.org/components/classic/documentation/slow-consumer-handling> >> >> Regards, >> >> William Crowell >> >> >> This e-mail may contain information that is privileged or confidential. 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