[infinispan-dev] Fwd: CloudCacheStore Bug

[Philippe Van Dyck]

Thanks Manik,

I have a another problem with eviction, it seems to destroy cache
entries, *only
when I use async*.

Of course, all updates are transactional.

Where should I search for clues ? Any idea ?

Here is my config:

<?xml version="1.0" encoding="UTF-8"?>

<infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:infinispan:config:4.0">
<global>
<transport
transportClass="org.infinispan.remoting.transport.jgroups.JGroupsTransport">
<properties>
<property name="configurationFile" value="jgroups.xml" />
</properties>
</transport>

</global>

<namedCache name="qi4j">
<transaction
transactionManagerLookupClass="org.infinispan.transaction.lookup.DummyTransactionManagerLookup"
/>
<clustering mode="distribution">
<l1 enabled="true" lifespan="100000" />
<hash numOwners="1" rehashRpcTimeout="120000" />
</clustering>

<loaders passivation="false" shared="true" preload="false">

<loader class="org.infinispan.loaders.file.FileCacheStore"
fetchPersistentState="false" ignoreModifications="false"
purgeOnStartup="true">
<properties>
<property name="location" value="/tmp" />
</properties>
<async enabled="true" threadPoolSize="3" />
</loader>

</loaders>
 <deadlockDetection enabled="true" spinDuration="1000"></deadlockDetection>

<eviction strategy="FIFO" wakeUpInterval="1000" maxEntries="10" />

<unsafe unreliableReturnValues="true" />

</namedCache>
</infinispan>


phil



On Wed, Feb 3, 2010 at 6:42 PM, Manik Surtani <manik at jboss.org> wrote:

> Ugh, good point.  I thought the unit tests would have trapped a dumb-ass
> mistake like this.
>
> The reason for transforming the name of the bucket is that we usually use
> hashcodes as the bucket name, which can take Integer.MIN_VALUE to
> Integer.MAX_VALUE.  These are then translated into Strings, and this becomes
> the name of the storage unit, e.g., 12345.bucket in the FileCacheStore.  Now
> filesystems are happy to accept a -12345.bucket but certain cloud storage
> providers barf when encountering the '-' character.  Hence the
> transformation to A12345.bucket in some cases.
>
> Cheers
> Manik
>
> PS: pushing up a new snapshot as I type, containing this fix + lower
> verbosity on eviction-related lock timeouts.
>
> On 3 Feb 2010, at 17:16, Philippe Van Dyck wrote:
>
> And BTW, why do it ?
>
> p
>
> ---------- Forwarded message ----------
> From: Philippe Van Dyck <pvdyck at gmail.com>
> Date: Wed, Feb 3, 2010 at 6:15 PM
> Subject: CloudCacheStore Bug
> To: infinispan -Dev List <infinispan-dev at lists.jboss.org>
>
>
> Hi all,
>
> there is a bug in CloudCacheStore that makes me feel like I am the only one
> using it ;-)
>
> in CR4 : if you change the "-" sign to "A" in getBucketName ... you need to
> do the opposite somewhere (or call it every time) ;-)
>
> WDYT ?
>
> p
>
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>
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>
> --
> Manik Surtani
> manik at jboss.org
> Lead, Infinispan
> Lead, JBoss Cache
> http://www.infinispan.org
> http://www.jbosscache.org
>
>
>
>
>
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