Heavy Disk Write?

[mkeenan <ke...@p2sol.com>]

I am using ActiveMQ 5.2 (also tried 5.3) on Windows XP with the default
out-of-the-box configuration.

I have a small test program with one producer and one consumer.  The
producer puts 500 text messages on a queue with a tiny payload (~32 bytes). 
The consumer (a message listener) reads the message and increments a
counter.

All three processes are running locally.

Regardless of persistence setting, the hard disk is hammered non-stop with
read/write requests while the test is running.  I am using Process Monitor
from the sysinternals suite and it shows that ActiveMQ is constantly reading
and writing under the data\journal and data\kr-store folders.

Is this normal?

I noticed it because I recently got a new machine (with dual 15k SAS drives
in a RAID stripe) and they go NUTS when I'm running a local broker and
executing these tests.
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Re: Heavy Disk Write?

[mkeenan <ke...@p2sol.com>]

mkeenan wrote:
> 
> Regardless of persistence setting, the hard disk is hammered non-stop with
> read/write requests while the 

Apologies for responding to myself.

I am using NMS 1.1 with Spring.NET 1.2.1 and it looks like I did not
understand the behavior of the default message handlers (in Spring).
Although the messages were NON-PERSISTENT at the first queue in my chain,
after that point they were PERSISTENT, which explains the disk IO usage.

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