Bug 896576 - New init.d ucarp script wrong setting advskew=1 to all nodes if no MASTER variable set.
Summary: New init.d ucarp script wrong setting advskew=1 to all nodes if no MASTER var...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: ucarp
Version: el6
Hardware: All
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Gwyn Ciesla
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-01-17 14:57 UTC by Daniel Santos
Modified: 2013-02-09 01:44 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-09 01:43:42 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Daniel Santos 2013-01-17 14:57:21 UTC
Description of problem:

There's a bug in the new released init.d script. At the line 65, everybody who doesn't set the MASTER variable in config files, will get an advskew=1 even if already set OPTIONS="-k xxx".

[ "${MASTER:-NULL}" == "${SOURCE_ADDRESS}" ] || OPTIONS="${OPTIONS} --advskew=1"

Version-Release number of selected component (if applicable):
1.5.2-6

How reproducible:

node priorities are not respected, --preempt is ignored and both nodes becomes master.

Steps to Reproduce:
1. Do NOT set MASTER variable on node ucarp configs, but set OPTIONS="-k xxx --preempt" as usual.
2. Restart ucarp on both nodes.
  
Actual results:
Node priorities (-k) are not respected, --preempt is ignored and both nodes becomes master.

Expected results:
Node priorities (-k) are respected, --preempt is applied and only the node with lowest -k value becomes master.

Additional info:

IMHO, MASTER variable is a redundant option that causes confusion and conflicts with previous configs that already uses OPTIONS="-k xxx"

Moreover, for environments (like mine) that uses more than 2 nodes with ucarp, this init.d script MASTER variable is useless as I can't set a proper priority to the nodes.

Comment 1 Gwyn Ciesla 2013-01-23 15:10:49 UTC
So I should I simply drop that line, or is there a specifica change that should be made?

Comment 2 Daniel Santos 2013-01-23 16:56:53 UTC
No specific changes required. Just drop that line and you are done. BTW, in what scenario it would be useful to use this MASTER variable?

Comment 3 Gwyn Ciesla 2013-01-23 19:02:03 UTC
I'm not sure.  I'll drop that line and push an update.  Thanks!

Comment 4 Fedora Update System 2013-01-23 19:30:51 UTC
ucarp-1.5.2-7.el6 has been submitted as an update for Fedora EPEL 6.
https://admin.fedoraproject.org/updates/ucarp-1.5.2-7.el6

Comment 5 Fedora Update System 2013-01-23 19:31:02 UTC
ucarp-1.5.2-7.el5 has been submitted as an update for Fedora EPEL 5.
https://admin.fedoraproject.org/updates/ucarp-1.5.2-7.el5

Comment 6 Fedora Update System 2013-01-23 22:03:29 UTC
Package ucarp-1.5.2-7.el6:
* should fix your issue,
* was pushed to the Fedora EPEL 6 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=epel-testing ucarp-1.5.2-7.el6'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-EPEL-2013-0188/ucarp-1.5.2-7.el6
then log in and leave karma (feedback).

Comment 7 Fedora Update System 2013-02-09 01:43:44 UTC
ucarp-1.5.2-7.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2013-02-09 01:44:19 UTC
ucarp-1.5.2-7.el5 has been pushed to the Fedora EPEL 5 stable repository.  If problems still persist, please make note of it in this bug report.


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