Re: [opennms-discuss] diskio datacollection tuning problem

[Andrea <ar...@co...>]

Jeff Gehlbach ha scritto:
> On Nov 5, 2008, at 11:43 AM, Andrea wrote:
>
>> Is there a way to use the same resource type in datacollectionconfig.xml
>> file ( i.e. diskIOIndex ) to get DISKIO info ( and also graphing ) from
>> only a subset of the devices on the target server ??
>>
>> Suppose i have a target-node which have 4 filesystems like these:
>> #########################
>> /dev/sdb2 on /var type ext3 (rw,noatime)
>> /dev/sda3 on /usr type ext3 (rw)
>> /dev/sda2 on /tmp type ext3 (rw)
>> /dev/sdb1 on /opt type ext3 (rw,noatime)
>> #########################
>>
>> Howto get and graph DISKIO info from only, for example, /dev/sdb2 and
>> /dev/sdb3 and not the others ??
>
> Not currently.  There's a notion in the collector of a 
> PersistenceSelectorStrategy whose job would be to do exactly what 
> you're asking, but it has not yet been implemented.  The references to 
> org.opennms.netmgt.collectd.PersistAllSelectorStrategy actually refer 
> to a nonexistent class; at some point persistence selectors will be 
> implemented and this will become possible without using a bunch of 
> scalar attributes, but for now I think that's the only way.
>
> -jeff
>
>
Hi Jeff, thanks a lot for the explanation and for the quick answer: i'll 
ask the server admin if really need to "purge" the graphs to only see 
those of interest; otherwise i'll use scalar attributes...

--Andrea