Are you setting the delivery mode on the publisher to be non-persistent?
Joe http://www.ttmsolutions.com nkleinsch wrote: > > Adding some of the things I've tried in case they'd be of help to other > people in the future. > > - Disabled producer flow control > (http://activemq.apache.org/producer-flow-control.html) - Did nothing for > client throughput > > - Switched pendingSubscriberPolicy to a VM cursor > (http://activemq.apache.org/message-cursors.html) - Did nothing for client > throughput > > - Tried changing the prefetch limit > (http://activemq.apache.org/what-is-the-prefetch-limit-for.html) - Did > nothing for client throughput. Given that the default was the max value > for nonpersistent topics, I didn't think this would do anything, but tried > it just in case. > > - Set Async Sends on the producer > (http://activemq.apache.org/async-sends.html) - Did nothing for client > throughput. This was also the default, but checked it to make sure. > > Is there anything else I haven't tried here that could help improve > performance? I've read through all the FAQs and performance documents and > am running out of ideas. > > - Nick > > > nkleinsch wrote: >> >> Hi all, >> >> I'm having throughput issues on ActiveMQ 5.2 and was hoping for some tips >> to improve performance. We're sending out messages on a topic at an >> average rate of around 150/sec. The messages are object messages that >> vary in size, but range up to 5 kilobytes. We're using a network of >> brokers between two sites, with all the producers in one site and the >> consumers in the other. We're seeing memory fill up on the producing site >> broker and the "messages received" falling behind "messages sent", >> implying that we're not able to send them over to the receiving side >> broker quickly enough. These messages don't need guaranteed delivery, so >> we're not using transactions or durable subscriptions. >> >> I set up a test between the two sites using the ActiveMQ Performance >> Module. I'm using a stock ActiveMQ 5.2 and the ActiveMQ Performance >> Module from the latest SVN. I'm running ActiveMQ on a server in site 1. >> If I run the producer and consumer on another server in site 1, I get a >> system average throughput of 5184. If I run the same test, except with >> the client on a similarly configured server in site 2, I get a throughput >> of 112. >> >> The transfer rate between the two servers is upwards of 3 MB/s, so I >> assume it isn't a bandwidth limitation. The latency between the two sites >> (measured using ping) is 90ms. Why would latency have such a large effect >> on my message throughput rate? Are there any settings I could change that >> would help my performance? >> >> Thanks, >> Nick Kleinschmidt >> > > -- View this message in context: http://www.nabble.com/Latency-causing-throughput-problems-in-ActiveMQ-5.2-tp25777286p25791255.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
