[infinispan-dev] admin operations for xsite replication

[Galder Zamarreño]

On Oct 4, 2012, at 2:58 PM, Mircea Markus <mircea.markus at jboss.com> wrote:

> Hi,
> 
> Re: https://issues.jboss.org/browse/ISPN-2320
> 
> Here is a list of admin operations I'd like to implement for ISPN-2320:
> - status: shows a map with all defined sites and their status: available xor offline
> - takeOffline: takes a site offline, i.e. backup to that site is ignored
> - takeOnline: the reverse to takeOffline
> - amendTakeOffline (int:afterFailures, long:minTimeToWait): changes the takeOffline functionality[1]
> - statistics: numberOfBackupCalls, successfullBackupCalls, failedBackupCalls
> 
> Each of the  operations that modify configs  would be available on a per node or on a per cluster basis (a flag to the operation would differentiated between the two).

^ I guess not, but just wondering if those modifications would be persisted in the XML config if there's any? That needs to be clearly defined.

> How does that sound? Any other operations you might think of?
> 
> [1] https://docs.jboss.org/author/display/ISPN/Cross+site+replication#Crosssitereplication-Takingasiteoffline

I understand afterFailure, but I don't understand minTimeToWait. What is minTimeToWait really used for? " the minimal number of millis to wait…" - wait for what?

And is it its use mutually exclusive from afterFailure? IOW, does it make sense to configure both at the same time? Or if you configure one, the other is not used, and viceversa? Judging from the comments it sounds they're mutually exclusive, in which case adding both as XML properties of the same XML element doesn't sound like a good idea.

Cheers,

> 
> 
> Cheers,
> -- 
> Mircea Markus
> Infinispan lead (www.infinispan.org)
> 
> 
> 
> 
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--
Galder Zamarreño
galder at redhat.com
twitter.com/galderz

Project Lead, Escalante
http://escalante.io

Engineer, Infinispan
http://infinispan.org