On Tuesday, July 22, 2014 9:47:11 AM UTC-7, Tom McNeer wrote:
>
> Is there any documentation for the use of the new caching configuration?
> And are there other known areas where an old config might cause errors?
>
Tom,
My apologies, this was so long ago for me I forgot it all changed. Here's
what you need to change your <objectCache> stanza in transfer.xml to:
<objectCache>
<defaultcache provider="transfer.com.cache.provider.EHCacheProvider">
<setting name="config" value="transfer/ehcache.xml" />
</defaultcache>
</objectCache>
For an example, this is mine with some examples of objects for which I've
specified no caching::
<objectCache>
<defaultcache provider="transfer.com.cache.provider.EHCacheProvider">
<setting value="/path/to/ehcache.xml" name="config"/>
</defaultcache>
<cache provider="transfer.com.cache.provider.NoCacheProvider"
class="package.object"/>
<cache provider="transfer.com.cache.provider.NoCacheProvider"
class="package2.object2"/>
<cache provider="transfer.com.cache.provider.NoCacheProvider"
class="package2.object3"/>
</objectCache>
To get started, create an ehcache.xml file with one default cache:
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd";>
<defaultCache
maxElementsInMemory="1000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="900"
overflowToDisk="false"
/>
</ehcache>
Converting from transfer.xml, timeToIdleSeconds replaces
accessedminutestimeout and timeToLiveSeconds replaces maxminutespersisted.
If you specify eternal=true, then the timeouts are ignored and the only
thing that will cause an object to be discarded from the cache is running
into the maxElementsInMemory limit.
If you want to get fancier, these are just a standard ehcache configuration
file so you can use the docs here for more tunable options:
http://ehcache.org/documentation/user-guide/configuration
For an example, here is my ehcache.xml:
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<defaultCache overflowToDisk="false" eternal="true"
maxElementsInMemory="350"/>
<!-- eternal for big objects -->
<cache overflowToDisk="false" eternal="true" maxElementsInMemory="750"
name="event.event"/>
<cache overflowToDisk="false" eternal="true" maxElementsInMemory="300"
name="track.track"/>
<!-- fine tune away from the defaults -->
<cache overflowToDisk="false" eternal="true" maxElementsInMemory="500"
name="member.member"/>
<cache overflowToDisk="false" eternal="true" maxElementsInMemory="1000"
name="member.clubmember"/>
<!-- short lived, eternal = false with ttl -->
<cache overflowToDisk="false" eternal="false" maxElementsInMemory="750"
name="user.user" timeToIdleSeconds="900"/>
<cache overflowToDisk="false" eternal="false" maxElementsInMemory="1500"
name="user.authrole" timeToIdleSeconds="900"/>
</ehcache>
Don't forget to delete all of your *.transfer files when upgrading!
(which, now based on the github repo, will actually be *.transfer.cfm files)
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