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Bug 157248 - RGManager uses start ordering for stop operations
RGManager uses start ordering for stop operations
Product: Red Hat Cluster Suite
Classification: Retired
Component: rgmanager (Show other bugs)
All Linux
high Severity medium
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Assigned To: Lon Hohberger
Cluster QE
: Regression
Depends On:
  Show dependency treegraph
Reported: 2005-05-09 15:52 EDT by Eric Kerin
Modified: 2009-04-16 15:51 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2005-07-12 11:38:01 EDT
Type: ---
Regression: ---
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RHEL 7.3 requirements from Atomic Host:
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Description Eric Kerin 2005-05-09 15:52:58 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050417 Fedora/1.7.7-1.3.1

Description of problem:
In rgmanager checked out from the RHEL4 branch, A Service's children are not stopped in the stop order specified in the service.sh meta-data section.  They are actually stopped in the order of the start property, rather than the stop property.  It occures this way in both  clurgmgrd, and rg_test.

Relevant parts of cluster config file:
                <service name="postgresql"/>
                <group name="postgresql" domain="mainfailover"/>
                <ip address="" monitor_link="yes"/>
                <fs fstype="ext3" name="Postgresql Drive" mountpoint="/var/lib/pgsql" device="/dev/SharedGroup00/PostgresVol00" o
                <script name="Postgresql Service" file="/etc/init.d/postgresql"/>

        <service ref="postgresql">
                <group name="postgresql"/>
                <ip ref=""/>
                <script ref="Postgresql Service"/>
                <fs ref="Postgresql Drive"/>

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

How reproducible:

Steps to Reproduce:
1. Configure a cluster service with a service, and a filesystem that is used by the service
2. Start the service with clusvcadm -e <service>
3. attempt to stop the service with clusvcadm -s <service>

Actual Results:  The services failed to stop, and the service went into failed, and a manual stop was required.  checking /var/log/messages will show that it tried to stop the filesystem before stopping the service.

Expected Results:  The service is stopped, then the filesystem is stopped. Cluster resources in the stopped state.

Additional info:

This patch fixed it for me, it may not take every stop situation into account.  But does cause resource moves to work correctly, as well as clusvcadm -s requests to not require manual intervention.

Index: restree.c
RCS file: /cvs/cluster/cluster/rgmanager/src/daemons/restree.c,v
retrieving revision
diff -u -r1.10.2.3 restree.c
--- restree.c   5 May 2005 20:41:08 -0000
+++ restree.c   9 May 2005 19:37:42 -0000
@@ -675,7 +675,11 @@
                for (x = 0; rule->rr_childtypes &&
                     rule->rr_childtypes[x].rc_name; x++) {

-                       lev = rule->rr_childtypes[x].rc_startlevel;
+                       if(op == RS_STOP)
+                               lev = rule->rr_childtypes[x].rc_stoplevel;
+                       else
+                               lev = rule->rr_childtypes[x].rc_startlevel;
                        if (!lev || lev != l)
Comment 1 Lon Hohberger 2005-05-09 16:14:32 EDT
That patch is correct.
Comment 2 Lon Hohberger 2005-05-09 16:24:42 EDT
Patches in head and RHEL4 branch
Comment 3 Lon Hohberger 2005-05-09 16:41:09 EDT
BTW, you'll generally want "clusvcadm -d" rather than "clusvcadm -s".  Stopping
is temporary; services in the "stopped" state are evaluated by rgmanager after
cluster membership changes to see if they should be started.

A stopped service will be started again; a disabled service won't.

(Just FYI)
Comment 5 Eric Kerin 2005-05-09 17:01:26 EDT
Good to know.  

I've synced my local copy with the patches you put in CVS, since I missed the
second place that it reads the start/stop ordering.

Also, while trying to configure my cluster I noticed a few cluster.conf examples
in the source tree that are out of date.  Would you rather patches go to you,
bugzilla or the linux-cluster mailing list?
Comment 6 Lon Hohberger 2005-05-09 18:07:33 EDT
For the example stuff, linux-cluster and CC me.

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