GitHub user stain opened a pull request:
https://github.com/apache/jena/pull/44
JENA-901 Upper bound on LPDRuleEngine cache
Fixes JENA-901.
A better solution might be to use guava caches - but I didn't want to add
another dependency, so this fix can go into a patch release.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/stain/jena JENA-901-LPDRuleEngine-bound-cache
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/jena/pull/44.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #44
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commit 50511efc0e3cdeaee95ee7254483b1ea9c1f9fea
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-19T02:52:08Z
JENA-901
A simple BoundedMap - based on LinkedHashMap
commit 06abde7d170bdc76ac3f9a7ef4159bb625028cfe
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-19T02:52:30Z
JENA-901 Use BoundedMap for tabledGoals cache
configurable with system property
jena.rulesys.lp.max_cached_tabled_goals
commit 0b2e72b7d604940c5b084f026c437484856e929a
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-19T02:55:06Z
JENA-901 Test saturation of tabledGoals
commit 83d7e8cfdd50f3de849731bf56cadf1d1daec15c
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-19T03:53:02Z
measure size of engine
commit 938db892729d7f1849c0a6f71b27ebd4d1be3ff9
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-19T04:16:02Z
more reset.. still uses lots of memory
commit 3d01fffa0d9ab6ee34b7f0e8ac540a53f3bf22c3
Author: Stian Soiland-Reyes <[email protected]>
Date: 2015-03-20T16:23:36Z
JENA-901 use a LinkedList instead of ArrayList
for activeInterpreters. They could be closed in arbitrary order,
and also this avoids a large ArrayList remaining after a big burst
of concurrent queries.
Simplify test. Check activeInterpreters is empty - this didn't
happen as I had forgotten to call it.hasNext() (which any use of
an iterator would normally do).
Test now with MAX=1024 and 128M find() calls.
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