[infinispan-issues] [JBoss JIRA] Created: (ISPN-1341) Eviction treats FIFO as LRU
Eviction treats FIFO as LRU
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Key: ISPN-1341
URL: https://issues.jboss.org/browse/ISPN-1341
Project: Infinispan
Issue Type: Bug
Components: Eviction
Affects Versions: 5.0.0.FINAL
Reporter: Jozef Vilkolak
Assignee: Manik Surtani
When a cache is created with eviction strategy set to FIFO it is actually treated as being
LRU. This can be seen in org.infinispan.container.DefaultDataContainer.java.
Functional test for FIFO eviction can be found at
[https://svn.devel.redhat.com/repos/jboss-qa/edg/edg-functional-tests/trunk/] in the
eviction-strategy module.
Basically what the test does is insert 3 values into the cache then retrieves the first
value(to differentiate FIFO and LRU) and inserts 4th value which sets eviction in motion
because of maxEntries=3.
I would expect the first entered value ("A") to be evicted instead it evicts the
second ("B").
It uses the following cache configuration:
{code:xml}
<local-cache
name="fifo"
start="EAGER"
batching="false"
indexing="NONE">
<locking
isolation="REPEATABLE_READ"
acquire-timeout="20000"
concurrency-level="500"
striping="false" />
<eviction
strategy="FIFO"
max-entries="3"
interval="2000"/>
</local-cache>
{code}
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