Bug 883548 - Qpid HA's '--ha-public-url' option duplicates the '--known-hosts-url' option but cannot be disabled
Qpid HA's '--ha-public-url' option duplicates the '--known-hosts-url' option ...
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: qpid-cpp (Show other bugs)
Unspecified Unspecified
medium Severity unspecified
: 2.3
: ---
Assigned To: Alan Conway
MRG Quality Engineering
: Improvement, OtherQA
Depends On:
Blocks: 698367
  Show dependency treegraph
Reported: 2012-12-04 15:49 EST by Jason Dillaman
Modified: 2013-03-19 12:38 EDT (History)
3 users (show)

See Also:
Fixed In Version: qpid-cpp-0.18-14
Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-03-19 12:38:45 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Jason Dillaman 2012-12-04 15:49:02 EST
Description of problem:
Qpid HA's '--ha-public-url' option will replace the known broker URL list that is exchanged with all clients / federated peers.  This is the same behavior that '--known-hosts-url' provides with the exception that it cannot be disabled by specifying 'none' as the URL.  

As a result, if you federate two brokers over a NATed link, the NAT URL will be replaced by a potentially non-routable '--ha-public-url', which will prevent recovery of the link.  

Version-Release number of selected component (if applicable):
Qpid 0.18

How reproducible:

Steps to Reproduce:
1. Federate two HA brokers over a NATed IP address -- ensure that the brokers can only connect over the NATed IP address
2. Interrupt the link
Actual results:
The destination broker will attempt to re-connect to the published '--ha-public-url' host instead of the original NAT URL.  

Expected results:
The destination broker will attempt to re-connect to the original NAT address if you can disable the '--ha-public-url' option / replace it w/ '--known-hosts-url=none'

Additional info:
Comment 1 Alan Conway 2012-12-14 09:49:47 EST
Fixed on branch 0.18-mrg-aconway-bz883548-2


Reverts the previous commit and simplifies the semantics of setting --ha-public-url and --ha-brokers-url. There is no longer any over-riding or implicit updating of values. That means you must set --ha-public-url as well as --ha-brokers-url, it will not be defaulted. Likewise if you *dont* set ha-public-url, it will remain empty, which is the use case in this bug. The defaulting was adding complexity without adding much value.

Note You need to log in before you can comment on or make changes to this bug.