Hi ,
(pacemaker 1.1.2.7 on el6)
on serveral HA clusters, I have 60 resources to configure and for
each one I have to configure group etc.
And as it take a lot of time to be configured, I'm trying to simulate
similar
configuration with Dummy resources .
Basically, for each group, I do (example is for 12th group):
Configuring r12-1-resname
Configuring r12-2-resname
Configuring group r12
Configuring delete target-role of both primitives
Deleted r12-1-resname option:
id=r12-1-resname-meta_attributes-target-role name=target-role
Deleted r12-2-resname option:
id=r12-2-resname-meta_attributes-target-role name=target-role
Configuring add two locations for group
And so I script a loop for 60 groups with successive crm commands, and
execute the script.
When it works (see at the end of email some errors) , and the loop ended
successfully,
I measure the time of each group configuration and it takes between
around 5s for
the first group, and around 45s for the 60th last one, which seems to
be a huge offset.
In fact, each time a new group is configured, it takes more and more
seconds.
So at the end , when it works until the end of loop, it takes between 22
and 30mn
to all configure, which is quite long.
Note that, to be sure, I also measure the time by using crm <
all-configure-commands
with all the configure commands for the 60 groups in the file
"all-configure-commands"
and it takes quite the same time : 21mn.
Any idea to lessen the time it takes to configure is welcome ...
By the way, I tried your command Dejan :
time cat config-show-full | crm -F configure load replace -
And it takes only 5s to set all the configuration with the 60 groups !!!
So it is really really efficient !!! But it has the cons that I have to
manage directly
all the xml records, without your crm interface ... so later, if you
make any change
in the xml records format or options or etc. , I'll have to carrefully
keep on eye
on any change and report it in the way I build the file to give to crm
-F configure load replace
so I'm not really for this solution ... except if there is no other way
to reduce configuration time.
Note also that during the execution, I'm facing random different problems
which stops the configuration loop, such as :
WARNING: CIB changed in the meantime: won't touch it!
(This one stop the configuration loop)
or
Call cib_replace failed (-43): Application of an update diff failed
<null>
ERROR: could not replace cib
INFO: offending xml: <configuration>
<crm_config>
... followed by the display of the configuration .
(This one does not stop the loop but it takes more than 2mn for the
group currently in configuration)
or
Call cib_replace failed (-41): Remote node did not respond
<null>
ERROR: could not replace cib
INFO: offending xml: <configuration>
<crm_config>
... followed by the display of the configuration .
(This one does not stop the loop but it takes more than 2mn for the
group currently in configuration)
I can't execute the all loop without at least one or two errors like
both last ones, excepting if
I stop and start again Pacemaker on both nodes just before executing the
loop, in this case
I never had any error .
And sometimes I got the first one (WARNING: CIB changed in the meantime:
won't touch it!)
which stop definitively the configuration loop.
Is there a patch on crm about these configuration problems ?
Thanks a lot
Alain
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