Ken Giusti created DISPATCH-2007:
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Summary: Need better allocation of sessions across inter-router
links
Key: DISPATCH-2007
URL: https://issues.apache.org/jira/browse/DISPATCH-2007
Project: Qpid Dispatch
Issue Type: Improvement
Components: Router Node
Affects Versions: 1.15.0
Reporter: Ken Giusti
Fix For: 1.16.0
Inter-router connections establish several links for passing traffic between
routers. Session allocation across the links is currently:
* one session dedicated to both router control links
* one session for EACH priority link pair (in/out) - 10 sessions total
* one session used by all link route links
* one session used by all streaming link
There is an issue with sharing the session in the case of streaming & link
routes. Due to the way session flow control works all links on the session
share bandwidth. This means one slow link can force flow control on all of its
peer links on the session.
Proton allows for at most 32K sessions per connection. We should make an
attempt to use dedicated sessions for link route and streaming links, sharing
only when the number of link route + streaming links exceeds the proton limit.
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