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Alfredo,<br>
Thanks! That was very helpful, although I have a couple more
questions for the list. What I am trying to do seems well suited for
the existing "depend" and "depend-mode" capability. Essentially, I'm
trying to use this to "group" services. So, assume I have 3 services:
A, B, and C (in my case, A is an IP service, B and C both have an fs
and a script resource). I want B and C to depend on A such that B and
C will only start on the node where A is running. I assume I can do
this by:<br>
<br>
<tt> <service autostart="1" name="B" recovery="relocate"
depend="service:A" depend-mode="hard"><br>
<fs ... /><br>
<script .../><br>
</service><br>
<br>
<service autostart="1" name="C" depend="service:A"
depend-mode="hard"><br>
<fs .../><br>
<script .../><br>
</service><br>
<br>
<service autostart="1" name="A" recovery="relocate"><br>
<ip ref="xxx.xxx.xxx.xxx"/><br>
</service></tt><br>
<br>
Unfortunately, this didn't work as expected. If I start A on node 1,
services B and C seem perfectly happy to run on any other node. If a
coerce everybody on the same node, and relocate (or disable A),
services B and C continue on blissfully ignoring the status of A. Do I
need to write and event handler for this situation (which seems much
simpler than the follow-service script)?<br>
<br>
Again, thanks in advance!<br>
<br>
-- scooter<br>
<br>
Moralejo, Alfredo wrote:
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<div class="Section1">
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Take a look
into<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><a
moz-do-not-send="true"
href="https://inquiries.redhat.com/go/redhat/ReferenceArchitectureSAPClusterSuite">https://inquiries.redhat.com/go/redhat/ReferenceArchitectureSAPClusterSuite</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Deploying
Highly Available SAP Servers
using Red Hat Cluster Suite<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Gives some
example about dependencies on
services etc..<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">A very good
document<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<div>
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color="black" face="Times New Roman" size="3"><span
style="font-size: 12pt; color: windowtext;" lang="ES">
<hr tabindex="-1" align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal"><b><font color="black" face="Tahoma" size="2"><span
style="font-size: 10pt; font-family: Tahoma; color: windowtext; font-weight: bold;"
lang="ES">From:</span></font></b><font color="black" face="Tahoma"
size="2"><span
style="font-size: 10pt; font-family: Tahoma; color: windowtext;"
lang="ES"> <a class="moz-txt-link-abbreviated" href="mailto:linux-cluster-bounces@redhat.com">linux-cluster-bounces@redhat.com</a>
[<a class="moz-txt-link-freetext" href="mailto:linux-cluster-bounces@redhat.com">mailto:linux-cluster-bounces@redhat.com</a>] <b><span
style="font-weight: bold;">On
Behalf Of </span></b>Scooter Morris<br>
<b><span style="font-weight: bold;">Sent:</span></b> Thursday, July
23, 2009
11:08 PM<br>
<b><span style="font-weight: bold;">To:</span></b> <st1:PersonName
w:st="on">linux clustering</st1:PersonName><br>
<b><span style="font-weight: bold;">Subject:</span></b>
[Linux-cluster]
Dependencies in resources</span></font><font color="black"><span
style="color: windowtext;" lang="ES"><o:p></o:p></span></font></p>
</div>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin-bottom: 12pt;"><font color="black"
face="Times New Roman" size="3"><span style="font-size: 12pt;">Hi all,<br>
I saw in a message on the net about a <b><span
style="font-weight: bold;">depends="service:xxxx" </span></b>option
for
services in cluster.conf for 5.3beta. Did this single-level dependency
support make it into the 5.3 release? It would be really, really
useful
if it did! If not, can anyone suggest a way that I can have a multiple
services depend on a single IP?<br>
<br>
Thanks in advance!<br>
<br>
-- scooter<o:p></o:p></span></font></p>
</div>
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