There's an open issue (with a patch!) that enables this, it seems:
<https://issues.apache.org/jira/browse/SOLR-3911>
Erik
On Nov 5, 2012, at 07:41 , deniz wrote:
> Michael Della Bitta-2 wrote
>> No, RAMDirectory doesn't work for replication. Use MMapDirectory... it
>> ends up storing the index in RAM and more efficiently so, plus it's
>> backed by disk.
>>
>> Just be sure to not set a big heap because MMapDirectory works outside of
>> heap.
>
> for my tests, i dont think index is ended up in ram with mmap... i gave
> 4gigs for heap while using mmap and got mapping error while indexing...
> while index should be something around 2 gigs, ram consumption was around
> 300mbs...
>
> Can anyone explain why RAMDirectory cant be used for replication? I cant see
> why the master is set for using RAMDirectory and replica is using MMap or
> some other? As far as I understand SolrCloud is some kinda pushing from
> master to replica/slave... so why it is not possible to push from RAM to
> HDD? If my logic is wrong, someone can please explain me all these?
>
>
>
> -----
> Zeki ama calismiyor... Calissa yapar...
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