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From Jim Lloyd <>
Subject Compression on network connections
Date Mon, 05 Apr 2010 20:48:10 GMT
I'm in the process of building a network of brokers in which some of the
links are geographically distributed. These links will use the SSL transport
for reasons of security, but we also want to use compression to minimize
bandwidth usage over the WAN links. I've searched the available
documentation and so far haven't found a definitive source that tells
whether the SSL Transport uses rfc3749 compression or not. Can anyone here
give me a definitive answer? If it is supported, which configuration options
are required?

It also appears that there is an option to use message level compression. If
compression is available on the SSL transport stream, I expect we would want
to ensure that message compression is turned off to allow the transport
level compression to have more context. The only documentation I have found
for this was for ActiveMQ 3, which implies that doMessageCompression
is trueby default. Is that still the default with ActiveMQ 5?

Jim Lloyd
Silver Tail Systems

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