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Posted to dev@qpid.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2018/12/04 17:10:00 UTC
[jira] [Commented] (DISPATCH-1198) An early query of
'org.apache.qpid.dispatch.router.node' can crash the router
[ https://issues.apache.org/jira/browse/DISPATCH-1198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16709000#comment-16709000 ]
ASF subversion and git services commented on DISPATCH-1198:
-----------------------------------------------------------
Commit 3b0bad1438167494ee88b1c8b755d1935fe5b51f in qpid-dispatch's branch refs/heads/master from [~tross@redhat.com]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-dispatch.git;h=3b0bad1 ]
DISPATCH-1198 - Ensure router addresses always use CLOSEST, even if first seen from a client.
> An early query of 'org.apache.qpid.dispatch.router.node' can crash the router
> -----------------------------------------------------------------------------
>
> Key: DISPATCH-1198
> URL: https://issues.apache.org/jira/browse/DISPATCH-1198
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.4.1
> Reporter: Ken Giusti
> Assignee: Ted Ross
> Priority: Major
> Fix For: 1.5.0
>
>
> During a debug session I modified the test script system_test.py in the following way (don't ask why - it's irrelevant):
> diff --git a/tests/system_test.py b/tests/system_test.py
> index d268671b..c007b3d3 100755
> --- a/tests/system_test.py
> +++ b/tests/system_test.py
> @@ -486,7 +486,8 @@ class Qdrouterd(Process):
>
> def is_router_connected(self, router_id, **retry_kwargs):
> try:
> - self.management.read(identity="router.node/%s" % router_id)
> + self.management.query(type='org.apache.qpid.dispatch.router.node')
> + #self.management.read(identity="router.node/%s" % router_id)
> # TODO aconway 2015-01-29: The above check should be enough, we
> # should not advertise a remote router in managment till it is fully
> # connected. However we still get a race where the router is not
> This change resulted in an assert being hit in the forwarder (note: build with -DCMAKE_BUILD_TYPE=Debug) when running the system_tests_two_routers test (possibly others).
> Analysis:
> The query is causing a qdr_address_t entry for amqp:/_topo/0/<router>/qdrouterd to be added to the routing table with treatment QD_TREATMENT_ANYCAST_BALANCED. Control messages must not use this treatment and the assert tests for it.
> Hypothesis:
> The query causes the 'R<router>' to be looked up before the other router has been established. This causes a new address entry with the default treatment to be created.
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