[Pvfs2-developers] CoalescingLowWatermark values

Phil Carns pcarns at wastedcycles.org
Tue Jun 27 16:30:17 EDT 2006


Ah, Ok.  That makes sense.  I was thinking about the low water mark the 
wrong way.

-Phil

Sam Lang wrote:
> 
> On June 27, 2006, at 2:21PM, Phil Carns wrote:
> 
>> Should the CoalescingLowWatermark config file parameter support  
>> "infinity" as a valid value, just as the CoalescingHighWatermark does?
>>
>> If I understand correctly, one could turn off syncing altogether by  
>> setting both to infinity and disabling TroveSyncMeta.  I think you  
>> can accomplish the same thing by using -1 as the value, but  
>> "infinity" is a little easier to understand.
>>
> 
> Its actually a less-than check, rather than a less-than-or-equals.   So 
> the LowWatermark can be set to 0 if you never want to sync.  If  that 
> seems counter intuitive I can change it to be infinity, but the  low 
> watermark acts as a lower bound, so setting it to infinity seems  
> counter-intuitive to me.
> 
> -sam
> 
>> -Phil
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