[infinispan-dev] no eviction on indexing

[Galder Zamarreño]

On Nov 22, 2012, at 2:27 PM, Ales Justin <ales.justin at gmail.com> wrote:

>> Right you should never enable eviction on a cache used to store
>> permanent data - like the Lucene index segment.
> 
> But couldn't you still have eviction if you used store to persist overflown data.
> 
>> How would you phrase the error message?
> 
> Well, at least put in the *right* cache name somewhere in the msg. ;-)
> I though I was going blind, as requesting cache - the indexing one - clearly had NONE set as eviction strategy.

^ Can you create a jira for this and assign it to me?

Cheers,

> 
>> On 22 November 2012 12:21, Ales Justin <ales.justin at gmail.com> wrote:
>>> Ah, OK, it should really be disabled on Lucene caches:
>>> 
>>>               <replicated-cache name="LuceneIndexesMetadata" mode="SYNC">
>>>                   <transaction mode="NONE"/>
>>>                   <eviction strategy="NONE"/>
>>>                   <file-store preload="true" purge="false"/>
>>>               </replicated-cache>
>>>               <replicated-cache name="LuceneIndexesData" mode="SYNC">
>>>                   <transaction mode="NONE"/>
>>>                   <eviction strategy="NONE"/>
>>>                   <file-store preload="true" purge="false"/>
>>>               </replicated-cache>
>>>               <replicated-cache name="LuceneIndexesLocking" mode="SYNC">
>>>                   <transaction mode="NONE"/>
>>>                   <eviction strategy="NONE"/>
>>>                   <file-store preload="false" purge="true"/>
>>>               </replicated-cache>
>>> 
>>> Horrible err msg ...
>>> 
>>> On Nov 22, 2012, at 12:53 PM, Ales Justin <ales.justin at gmail.com> wrote:
>>> 
>>> I was changing cache config a bit, and got this:
>>> * https://gist.github.com/4130728
>>> 
>>>  private static void verifyCacheHasNoEviction(AdvancedCache<?, ?> cache) {
>>>     if (cache.getConfiguration().getEvictionStrategy().isEnabled())
>>>        throw new IllegalArgumentException("DistributedSegmentReadLocker is
>>> not reliable when using a cache with eviction enabled, disable eviction on
>>> this cache instance");
>>>  }
>>> 
>>> 
>>> How do you then handle memory overflow on no-eviction caches?
>>> 
>>> 
>>> -Ales
>>> 
>>> 
>>> 
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> 
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--
Galder Zamarreño
galder at redhat.com
twitter.com/galderz

Project Lead, Escalante
http://escalante.io

Engineer, Infinispan
http://infinispan.org