Ted Ross created DISPATCH-1532:
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Summary: Reimplement mobile-sync as a core module
Key: DISPATCH-1532
URL: https://issues.apache.org/jira/browse/DISPATCH-1532
Project: Qpid Dispatch
Issue Type: Improvement
Components: Routing Engine
Reporter: Ted Ross
Assignee: Ted Ross
Fix For: 1.11.0
The code in Qpid Dispatch Router currently does mobile address synchronization
between routers in the Python router module. This has a couple of drawbacks in
cases where there are large numbers of addresses:
* The address strings are stored twice: once in the main address lookup hash
table and again in the Python mobile address module.
* Address lookup on the Python side is inefficient and has been a bottleneck
(improved recently by a patch from Gordon Sim).
* Python processing is single threaded. A large mobile address update can
cause delays in processing management requests and link-state topology
maintenance.
The python router module was intended to be an on-the-side control-plane moduel
that was not in the critical path for any performance-related activities. With
large numbers of addresses in a network, synchronizing address locations
becomes performance-related.
To address these issues, mobile address synchronization can be moved into a
core module where it can use and share the same address table that is used by
the router core for make high speed routing decisions. In the process, it will
leave the python modules alone to process management requests and topology
maintenance uninterrupted.
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