Re: 500ooo+ queues?

OK, I stand (well, sit) corrected. :) Thanks, Aaron On Sat, Nov 21, 2009 at 1:34 AM, Rob Davies wrote: > Hi Aaron, > > we've spent a lot time addressing file handles/startup time - ActiveMQ > scales well in 5.3 > > cheers, > > Rob > On 20 Nov 2009, at 11

Re: 500ooo+ queues?

It was my experience that ActiveMQ does not handle that well (destinations are not particularly "lightweight") and you'd do better to have a smaller number of destinations with selectors. RAM is not the main/only issue -- file handles and startup time also caused problems. Thanks, Aaron On W

Re: Performance of high number of topics or selectors

andle high number of selectors or topics. Thanks, Aaron On Mon, Apr 27, 2009 at 11:04 PM, Aaron Mulder wrote: > Let's say I have 100,000 stock tickers (or whatever) I want to track, > each with a separate client. > > There seem to be two approaches -- putting them all in one t

Performance of high number of topics or selectors

Let's say I have 100,000 stock tickers (or whatever) I want to track, each with a separate client. There seem to be two approaches -- putting them all in one topic and having each of the clients use a selector (ticker equivalent in a header property), or putting messages for each header on it's ow

Avoiding Payload Serialization

If I have a Java object that I want to use as a message payload, with the vm:// transport and no persistence, is there a way to avoid having it serialized? I saw a note in the code that JMS requires serialization for ObjectMessage and a setting to avoid that, but it didn't really work. When I tri

Persistence DDL

I seem to remember a page on the ActiveMQ site that discussed the specific tables/columns used or needed in a database used as a JDBC persistent store. But I can't find it now. Can someone point me to it? Thanks, Aaron

Re: Store and forward not working?

I don't see anything obviously wrong with the config files. I normally give each networkConnector a unique name attribute, but I don't think that would cause it to not work. I don't typically use the Web console, though (I think issues like the negative message count are known) -- to test it "the

Re: Store and forward not working?

Could you post the config files for both servers just for a sanity check? Thanks, Aaron On Mon, Oct 13, 2008 at 4:15 PM, jpoloney <[EMAIL PROTECTED]> wrote: > > Yes, I can telnet into the IP addresses from both machines. So, queue1 can > telnet into queue2 and queue2 and telnet into queue1.

Re: systemUsage configuration

Are you validating the XML just to make sure it's not a syntax error? I get stuff onto disk with a configuration like this (and a producer sending 1 MB messages): ... ... Thanks, Aaron On Tue, Jul 15, 2008 at

Re: systemUsage configuration

I am by no means an authority on this, but I'm not sure the store usage or temp usage settings are actually used for anything. I believe you want your memory usage setting to be high enough to hold all the traffic you expect to be in memory at once. I think this is e.g. non-persistent messages th

Re: ActiveMQ & Camel

To be a little more specific, in ActiveMQ > 5.1.0, you can set a username and password on the Camel ActiveMQComponent that's described on the page James pointed to. In ActiveMQ <= 5.1.0, you need to configure the ActiveMQConnectionFactory as one bean and set the username and password on that one,

Re: Client/Server version (in)compatibility

I believe I was told there was some kind of multi-step upgrade path from old 4.x releases to new 4.x releases (if you want to upgrade the server and multiple clients with minimal down time), but as far as I know the folks who worked that process out haven't gone to 5.x. I can try to get more detai

Re: First ActiveMQ/jms project

When you say "JMS binding component", do you mean you want to use JMS from ServiceMix or Camel, or are you just trying to use a regular Java client to talk to ActiveMQ? Thanks, Aaron On Mon, Jun 2, 2008 at 12:04 PM, floulou <[EMAIL PROTECTED]> wrote: > > Hi, > I want to do my first applica

Re: Error in Eclispe XML Editor when 'amq' namespace used

You can change the file to use the URLs with versions in the name. I find that my IDE doesn't work with the versionless URLs either (though it seems that Spring and XBean are OK with it). http://activemq.apache.org/schema/core/activemq-core-5.1.0.xsd http://activemq.apache.org/camel/schema/spring

Re: Master/Slave Problem with v5.1.0

ection. Thanks, Aaron > On Fri, May 16, 2008 at 7:05 PM, Aaron Mulder > <[EMAIL PROTECTED]> wrote: >> I've set up a master/slave cluster, and I'm running a test that >> launches threads for 20 producers and 20 consumers and they read/write >> persi

Master/Slave Problem with v5.1.0

I've set up a master/slave cluster, and I'm running a test that launches threads for 20 producers and 20 consumers and they read/write persistent messages of 10kB to a queue. The consumers are using sync receive() calls at the moment. When I start the test, I immediately get lots of exceptions fr

Re: ClassCastException with VirtualTopic on 5.1

I did not see this problem with the admittedly inefficient test class attached (which is only the consumer part). Thanks, Aaron On Fri, May 16, 2008 at 6:17 PM, jydev <[EMAIL PROTECTED]> wrote: > > Hello, > > Getting the following error with VirtualTopic on 5.1, when there are more > than

Re: Building a distribution

But really, doesn't the build build a build without you needing to use the release process?!? Thanks, Aaron On Fri, May 16, 2008 at 12:34 PM, Aaron Mulder <[EMAIL PROTECTED]> wrote: > Move your eclipse files away for long enough to do the build? > > Thanks, >

Re: Building a distribution

Move your eclipse files away for long enough to do the build? Thanks, Aaron On Fri, May 16, 2008 at 12:10 PM, Filip Hanik - Dev Lists <[EMAIL PROTECTED]> wrote: > can I build a distribution without having to upload or do any SVN actions, > > I'm reading > http://activemq.apache.org/releas

Re: Security problem with 5.1.0

15, 2008 at 8:49 PM, Aaron Mulder > <[EMAIL PROTECTED]> wrote: >> This may not be as bad as the subject sounds, but... >> >> I enabled security by dumping all 3 of the default files from >> http://activemq.apache.org/security.html in activemq-5.1.

Re: Memory settings in 5.1

, Aaron On Fri, May 16, 2008 at 8:57 AM, Aaron Mulder <[EMAIL PROTECTED]> wrote: > So here's what I've observed attempting to send 1 MB messages to a queue: > > With the default settings (5 MB limit per queue, 20 MB memoryUsage > limit), it slows the producer after

Memory settings in 5.1

So here's what I've observed attempting to send 1 MB messages to a queue: With the default settings (5 MB limit per queue, 20 MB memoryUsage limit), it slows the producer after 4 messages. If I bump the memoryUsage to 200MB, no change (seems limited by the queue limit). If I then set the queue lim

Security problem with 5.1.0

This may not be as bad as the subject sounds, but... I enabled security by dumping all 3 of the default files from http://activemq.apache.org/security.html in activemq-5.1.0/conf and then putting this in the broker config:

Re: ActiveMQ5.1 probable release date

Answer: "when it's ready." :) Best Guess: There's a vote on a release candidate underway now. If all goes well, should be a few days, but if showstopper issues come up, perhaps more on the order of a week. Thanks, Aaron On Wed, Apr 23, 2008 at 10:44 AM, activemqnewbie <[EMAIL PROTECTED

Re: Retroactive consumer...yes, no, maybe so?

t; Andrew > > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Aaron > Mulder > Sent: Tuesday, March 18, 2008 10:07 AM > To: users@activemq.apache.org > > > Subject: Re: Retroactive consumer...yes, no, maybe so

Re: Retroactive consumer...yes, no, maybe so?

Do you want to post your example that's *not* working? I last used retroactive consumers probably 18 months ago, and they worked fine at that time. I was doing a network of brokers with fail-over, and if I took one broker down and caused a consumer to fail over, it missed messages during the fail