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http://jira.magnolia-cms.com/browse/MGNLDMS-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Philipp Bärfuss updated MGNLDMS-159:
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Fix Version/s: 1.x
(was: 1.4.1)
> Caching big documents from dms repository causes OutOfMemoryError
> -----------------------------------------------------------------
>
> Key: MGNLDMS-159
> URL: http://jira.magnolia-cms.com/browse/MGNLDMS-159
> Project: Magnolia DMS Module
> Issue Type: Bug
> Affects Versions: 1.3
> Environment: Magnolia 3.6.3 CE
> Environment1: Sun JDK 1.6.0_11, 32bit, RHEL 5.3Beta
> Environment2: Sun JDK 1.6.0_03,32bit, Windows 2000
> Reporter: Henryk Paluch
> Assignee: Jan Haderka
> Fix For: 1.x
>
> Attachments:
> config.modules.cache.config.configurations.default.cachePolicy.voters.urls.excludes.dmsNoCache.xml,
> oom_stacktrace.txt
>
>
> magnolia-module-cache caches on public instance all data into byte[] array
> which easily causes OutofMemoryError on large repositories.
> NOTE: this error occures on Public instances only, whose has caching enabled!
> How to reproduce:
> 1) Start PUBLIC magnolia instance with Heap smaller than DMS repository size,
> for example -Xmx256m
> 2) Upload on PUBLIC instance few large files (for example 3 times 100MB PDF
> files)
> 3) Launch new anonymous browser (to ensure, that cache is used)
> 4) Download (do not interrupt) the 3 large 100MB large files from public
> instance
> 5) Usually the 2nd download will cause
> java.lang.OutOfMemoryError: Java heap space
> at java.util.Arrays.copyOf(Arrays.java:2786)
> at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:71)
> at
> info.magnolia.module.cache.filter.SimpleServletOutputStream.write(SimpleServletOutputStream.java:53)
> (Full stacktrace shall be attached later)
> Woraround: disable caching for large repositories (attachment pending)
> Possible solution: cache module should stream large files into disk rather
> than memory (as it did in 3.0.x version). This should prevent OutOfMemory
> error on large Document and or Website repositories.
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