[Linux-cluster] Indenting resources inside a service in rh el 4.8

[Gordan Bobic]

Are you sure you mean indenting rather than nesting?
Indentation is ignored in any XML structure. There is no difference in 
meaning between:

<foo />
<bar />

and

<foo />
	<bar />

But this would signify a dependency (bar depends on foo):
<foo>
	<bar />
</foo>


Gordan

Gianluca Cecchi wrote:
> Probably I was not completely correct in my assumptions.
> 
> The indenting configuration should assure that the inner resource is
> started after the outer one. Is this true for rh el 4?
> Instead, to have the behaviour regarding resource restatrt and not
> whole service restart, in rh el 5.x you should write something like
> this:
> 
>                         <fs ref="extstoragefs" __independent_subtree="1">
>                                 <script
> ref="myscript"__independent_subtree="1" />
>                         </fs>
>                                 <ip ref="10.4.5.6"/>
>                                 <script ref="mydb"/>
> 
> But this seems not to work in rh el 4. Is this supposed to work?
> Thanks
> Gainluca
> 
> 
> On Tue, Oct 12, 2010 at 3:40 PM, Gianluca Cecchi
> <gianluca.cecchi at gmail.com> wrote:
>> Hello,
>> in RH EL 5.4 (and 5.5) it is possible to indent resources inside a
>> service definition (service = test_service), so that, having this:
>>
>>                        <fs ref="extstoragefs">
>>                                <script ref="myscript"/>
>>                        </fs>
>>                                <ip ref="10.4.5.6"/>
>>                                <script ref="mydb"/>
>>
>>
>> Where resources are like these ones:
>>                <resources>
>>                        <fs device="/dev/md0" force_fsck="0"
>> force_unmount="1" fsid="12263" fstype="ext3" mountpoint="/app"
>> name="extstoragefs" options="" self_fence="1"/>
>>                        <ip address="10.4.5.6" monitor_link="0"/>
>>                        <script file="/opt/myapp/init.d/myscript.sh"
>> name="myscript"/>
>>                        <script file="/etc/init.d/mysql" name="mydb"/>
>>                </resources>
>>
>> Suppose I have a failure in myscript app (I kill the app) I have a
>> restart in place of the resource itslef.
>> Instead it seems that in latest RHEL 4.8+updates I have a complet
>> service restart.
>> Is this the supposed behaviour so that there is different
>> functionality between RH EL 4.x and 5.x?
>> I suppose so, as I don't see any particular xml formatting
>> informations in cluster admin manual for rh el 4.x.... but I would
>> like to have a confirmation.
>> Any way to have similar parent-childs configuration in RH EL 4?
>>
>> In logs, after kiil -9 of the process involved in myscript application I have:
>>
>> Oct 12 15:07:14 nodeb clurgmgrd: [27555]: <err> script:myscript:
>> status of /opt/myapp/init.d/myscript.sh failed (returned 3)
>> Oct 12 15:07:14 nodeb clurgmgrd[27555]: <notice> status on script
>> "myscript" returned 1 (generic error)
>> Oct 12 15:07:14 nodeb clurgmgrd[27555]: <notice> Stopping service test_service
>> Oct 12 15:07:16 nodeb lsb_log_message:  succeeded
>> Oct 12 15:07:26 nodeb clurgmgrd[27555]: <notice> Service test_service
>> is recovering
>> Oct 12 15:07:26 nodeb clurgmgrd[27555]: <notice> Recovering failed
>> service test_service
>> Oct 12 15:07:26 nodeb kernel: kjournald starting.  Commit interval 5 seconds
>> Oct 12 15:07:26 nodeb kernel: EXT3-fs warning: maximal mount count
>> reached, running e2fsck is recommended
>> Oct 12 15:07:26 nodeb kernel: EXT3 FS on md0, internal journal
>> Oct 12 15:07:26 nodeb kernel: EXT3-fs: mounted filesystem with ordered
>> data mode.
>> Oct 12 15:07:31 nodeb lsb_log_message:  succeeded
>> Oct 12 15:07:31 nodeb clurgmgrd[27555]: <notice> Service test_service started
>>
>> Thanks in advance, Gianluca
>>
> 
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