<< 12-May-2008 : hausbot on #activemq at codehaus [download] [back] >>
 
 
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14:23

<jstrachan>

chirino_m: btw noticed the maven site is being deployed to activemq.apache.org/activemq-5.2-SNAPSHOT/ or something - was pondering about putting em in a directory kinda like activemq*/versions/* instead - then having maven link to the latest version

14:40

<chirino_m>

the site is?

14:40

<chirino_m>

had not noticed that.

14:47

<jstrachan>

yeah - did a mvn site:deploy the other day

16:17

<jstrachan>

http://www.nobugs.org/blog/archives/2008/05/11/squawk-simple-queues-using-awk/

16:28

<chirino_m>

lol

16:29

<chirino_m>

wow.

20:30

<TomJ>

Guys, would you recommend ActiveMQ 5.1 or ActiveMQ FUSE 5.0.0.13 at the moment for a high performance, high load install? I dont have support yet, am due to purchase some soon, hence have been using FUSE - I but I hear 5.1 solves a lot of stability/memory leak type problems, which I have experienced myself, so am unsure which to go for

20:30

<chirino_m>

TomJ: so .13 is about == to 5.1

20:31

<TomJ>

ah ok, so the 5.1 fixes are backported?

20:31

<chirino_m>

yes.

20:31

<TomJ>

thanks very much

20:31

<chirino_m>

basically we have been fixing bugs in apache trunk and doing periodic patch releases of the 5.0.0.x stuff.

20:32

<chirino_m>

which is why we are all the way up to .13 already.

20:32

<chirino_m>

now that 5.1 is out.. we will be putting out a 5.1.0.x shorty

20:33

<TomJ>

Ok good to know, thanks very much

20:48

<TomJ>

one more question - is it generally advisable to run AMQ with the systemUsage section of config enabled, or not? I have got out of memory when using it

20:48

<TomJ>

I set e.g. memoryUsage="1024mb" tempusage="1024mb"

20:48

<TomJ>

maybe I am setting the values higher than the total maximum heap (2gb)

20:48

<TomJ>

but I am not sure if I even need to bother with systemUsage or if it just handles it ok by itself

20:54

<chirino_m>

TomJ: should be ok

20:55

<chirino_m>

but by default most JVMs use 64 meg max heaps

20:55

<TomJ>

I have -Xmx2048M

20:55

<chirino_m>

yeah

20:55

<chirino_m>

that should be fine then.

20:55

<chirino_m>

would be interesting to see why you are running out of heap then

20:56

<TomJ>

yeah. but do I generally need to specify systemUsage, or does it normally figure it out on its own ok?

20:57

<chirino_m>

a systemUsage is in use at all times. the default values are conservative.

20:57

<chirino_m>

like 20 meg mem usage

20:57

<chirino_m>

increasing it should just help with performance a little

20:59

<TomJ>

interesting, because JConsole seems to indicate it's using up the 2gb, even with systemUsage disabled

21:00

<TomJ>

so do the sum of memoryUsage, storeUsage and tempUsage need to be no bigger than -Xmx ?

21:00

<chirino_m>

only memoryUsage should affect memory usage.

21:00

<chirino_m>

the others a controlling disk usage.

21:02

<TomJ>

ah I see ok, thanks. one final thing - what is percentUsageMinDelta for? the docs just indicate that it controls whether a usageListener event is fired, but I am not really sure what that means

21:07

<TomJ>

dont know if you saw this, chirino_m: ah I see ok, thanks. one final thing - what is percentUsageMinDelta for? the docs just indicate that it controls whether a usageListener event is fired, but I am not really sure what that means

21:08

<chirino_m>

TomJ: don't set it.

21:08

<chirino_m>

advanced tunning option

21:08

<chirino_m>

that might not give much return

21:09

<TomJ>

ok, I'll remove it - thanks

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