Robin Taylor created DS-1527:
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Summary: Memory leak in CachingService
Key: DS-1527
URL: https://jira.duraspace.org/browse/DS-1527
Project: DSpace
Issue Type: Bug
Components: Service Manager
Affects Versions: 3.1, 3.0, 1.8.2, 1.8.1, 1.8.0
Reporter: Robin Taylor
Priority: Major
Fix For: 4.0
CachingServiceImpl contains a memory leak, or to be more precise the nested
class CachingServiceRequestInterceptor does. If you want to confirm this then
use a profiler and watch map 'requestCachesMap' grow, or use the 'old school'
method and stick some debugging code in the
onStart() method. The onStart() method and its partner onEnd() are invoked
indirectly by DSpaceWebappServletFilter, however, it appears onEnd() does not
get invoked for requests of type FORWARD or INCLUDE. This results in lots of
undeleted entries in requestCachesMap.
Ideally it would be good to understand why onEnd() does not get invoked for all
request types. However, if nobody can come up with an explanation then the easy
fix for this is to delete the references to FORWARD and INCLUDE in the filter
mapping definition in web.xml. If nobody can think of a reason not to do so
I'll provide a pull request to that effect.
Cheers, Robin.
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