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Posted to dev@qpid.apache.org by "michael goulish (JIRA)" <ji...@apache.org> on 2017/11/09 20:24:00 UTC
[jira] [Created] (DISPATCH-873) new routes calculated wrongly after
connector deletion
michael goulish created DISPATCH-873:
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Summary: new routes calculated wrongly after connector deletion
Key: DISPATCH-873
URL: https://issues.apache.org/jira/browse/DISPATCH-873
Project: Qpid Dispatch
Issue Type: Bug
Components: Routing Engine
Affects Versions: 1.0.0
Reporter: michael goulish
Priority: Blocker
Fix For: 1.0.0
I have a 3-mesh network with nodes A, B, C.
B-->A cost is 10
C-->A cost is 10
B-->C cost is 100.
Initial route from B to C is calculated correctly as B,A,C : cost == 20.
But after I used qdmanage to delete the connector from B to A, I get no further messages delivered from B to C.
Using qdstat to look at routing table, it looks wrong:
Both B and C think they can only get to each other by going through A. But there is now no route that way, because B-->A has been deleted. They should be using the direct connection B-->C. Yet they both calculate the cost correctly as 100.
===========================================================
A
===========================================================
Routers in the Network
router-id next-hop link ver cost neighbors valid-origins
A (self) - 1 ['C'] []
B C - 1 110 ['A', 'C'] []
C - 1 1 10 ['A', 'B'] ['B']
===========================================================
B
===========================================================
Routers in the Network
router-id next-hop link ver cost neighbors valid-origins
B (self) - 1 ['C'] []
C A - 1 100 [] []
===========================================================
C
===========================================================
Routers in the Network
router-id next-hop link ver cost neighbors valid-origins
A - 0 1 10 ['C'] []
B A - 1 100 ['A', 'C'] ['A']
C (self) - 1 ['A', 'B'] []
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