[infinispan-dev] Proposal: ISPN-1394 Manual rehashing in 5.2

[Manik Surtani]

On 1 Feb 2012, at 12:46, Sanne Grinovero wrote:

>> 
>> The getCache() timeout should not be increased at all. Instead I would
>> propose that getCache() returns a functional cache immediately, even
>> if the cache didn't receive any data, and it works solely as an L1
>> cache until the administrator allows it to join. I'd even make it
>> possible to designate a cache as an L1-only cache, so it's never an
>> owner for any key.
> 
> I agree that would be very nice, but makes it much more complex to
> implement in 5.2 as well: functional L1 means that the other nodes
> must accept this node as part of the grid, including for L1
> invalidation purposes.
> So my proposal on blocking until ready is to make a first step, and I
> think it would still be very useful for people wanting to boot some
> ~100 nodes. Blocking the application is not a big deal, as you're
> delaying boot of an application which was likely not even powered on
> before.
> When adding several new nodes, I just want them to "add all at once",
> so preventing intermediate rehashing: until all have joined you should
> block rehash - that's a manual (or more likely automated externally)
> step and will not be engaged for long, nor it would replace normal
> behaviour when disabled.

+1.

--
Manik Surtani
manik at jboss.org
twitter.com/maniksurtani

Lead, Infinispan
http://www.infinispan.org



-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/infinispan-dev/attachments/20120204/cc6b8765/attachment-0001.html