[Artemis] - Can last value queue be sent to multiple consumers?

Hi, I'm currently using activemq and now looking into Artemis. One of the interest features I see is the is the last-value queue option. However what I want to use it for is for regularly updating data and not so regular updating data where the last value is always the only interesting value, but

Re: [Artemis] - Can last value queue be sent to multiple consumers?

last-value queues which represent all your workstations. How > you access those will depend on what protocol/API you decide to use. > > > Justin > > On Fri, Aug 11, 2017 at 5:13 AM, Lionel van den Berg <lion...@gmail.com> > wrote: > > > Hi, > > > &

Log files not being cleaned up

Hi all, ActiveMQ 5.14.4 running on Suse enterprise 11 sp4 I'm having trouble with the log files (like db-1.log) not being cleaned up and after about 6 weeks of running ActiveMQ shuts down because there are too many files in the directory (I think it was 3000), it cannot be restarted we think due

Re: Log files not being cleaned up

idea. Is there some system in place that would allow me to be alerted of issues that could be catastrophic before they happen? On 21 October 2017 at 14:08, Tim Bain <tb...@alumni.duke.edu> wrote: > Responses inline. > > On Fri, Oct 20, 2017 at 5:46 AM, Lionel van den Berg <lion...@

Re: [Artemis] - Can last value queue be sent to multiple consumers?

com> wrote: > A multicast address is something you configure on the ActiveMQ Artemis > broker. See more details in the documentation [1]. > > > Justin > > [1] http://activemq.apache.org/artemis/docs/latest/address-model.html > > On Sat, Aug 12, 2017 at 5:36 PM, Lione

Re: Out of memory exception

use JConsole or > JVisualVM to get an understanding of how much heap is actually used and how > much time is being spent GCing. > > Also, can you more clearly describe what you mean by "unresponsive"? > > Tim > > On Fri, Apr 6, 2018, 12:22 AM Lionel van den Berg <li

Re: Out of memory exception

Huh? On Wed, 16 May 2018 at 10:19 pm, Twers1991 wrote: > Its fixed, it doesnt appear such a issues, they work pretty well on it! > > > > -- > Sent from: > http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html >

Re: [Artemis, AMQP] last-value queue question: nondestructive consumers

This is an interesting thread to me. We are trialling right now using retroactive on the AMQ 5.14.x in a k,v type way. I had thought to try with Artemis in the future using LVQ + multiplexing (I think it was). On Tue, 1 May 2018 at 3:27 pm, michael.andre.pearce < michael.andre.pea...@me.com>

Re: Log files not being cleaned up

;tb...@alumni.duke.edu> wrote: > Have you run the troubleshooting procedures in > http://activemq.apache.org/why-do-kahadb-log-files- > remain-after-cleanup.html? > What did they indicate? > > On Sep 12, 2017 8:27 PM, "Lionel van den Berg" <lion...@gmail.com> wrot

Security

What is recommended to use with ActiveMQ (5.14/5.15) for security? We've started dabling with the authentication, which seems fine, but we would also like to consider encryption. Will we lose the ability to use XML filters if encrypted? Thanks Lionel.

Re: Number of topics?

g should a piece of > string be?" The answer is - it depends. Without a lot more context it > will be difficult, if not impossible, to provide much help. > > First point of context is...Which broker are you using? > > > Justin > > On Thu, Jun 21, 2018 at 8:37 AM

Number of topics?

Hi, What do you think a reasonable number of topics is? At the moment we have maybe 3-4 thousand and use about 1gb of memory. However, I can see it would be an advantage to scale up as we define our topic paths using asset names in the nodes. Some assets can be temporary. We currently have

Message appears to be sent but not received

Another kind of vague one. We have found from our application logs at site that some messages that we are sending appear to be sent OK on one end but are never received by the subscriber. This seems to coincide with topics where the traffic volume is low, does anyone have any pointers on where to

Out of memory exception

Hi, We're still investigating, turning up logging etc. but we've come across two issues: 1. At our site deployment with default memory usage (1gb) AMQ threw an out of memory exception. We couldn't determine exactly why, whether it was cumulative memory use of a peak memory use. We have around 50

Re: Message appears to be sent but not received

the messages in question were sent? > > Also, do the subscribers in question use any selectors? > > Tim > > On Fri, Apr 6, 2018, 12:26 AM Lionel van den Berg <lion...@gmail.com> > wrote: > > > Another kind of vague one. We have found from our application logs at &

Re: Message appears to be sent but not received

ying? > > Tim > > On Fri, Apr 6, 2018 at 7:11 AM, Lionel van den Berg <lion...@gmail.com> > wrote: > > > Non-durable an using the same connection as other topics that are still > > working. No filters. > > > > > > On Fri, 6 Apr 2018 at 11:03 pm

Re: Message appears to be sent but not received

> Though of course if there's a bug, all bets are off. > > On Apr 8, 2018 5:53 AM, "Lionel van den Berg" <lion...@gmail.com> wrote: > > I’m going to try to get someone to try your suggestions at site tomorrow. > > Regarding your question, yes, the subscriber is a

Re: Message appears to be sent but not received

ver a couple of messages out of a huge number, that wasn't going to be > a lot of fun to track down. So I'm glad you figured it out, for both our > sakes. > > Tim > > On Sun, Apr 8, 2018, 6:58 PM Lionel van den Berg <lion...@gmail.com> > wrote: > >> Good news, it’s o

Another memory blow out

Hi all, We had another site issue of memory blow out today in our operations system. AMQ had been running for a month and had been stable at 1GB of memory use. Then at 3am approximately it started rising by about 50mb every 5 minutes until we had to restart it 4 hours later to prevent an