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Posted to issues@camel.apache.org by "Claus Ibsen (JIRA)" <ji...@apache.org> on 2016/03/22 07:03:25 UTC
[jira] [Updated] (CAMEL-9735) camel-tarfile throws OutOfMemoryError
when splitting large files
[ https://issues.apache.org/jira/browse/CAMEL-9735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen updated CAMEL-9735:
-------------------------------
Issue Type: Improvement (was: Bug)
> camel-tarfile throws OutOfMemoryError when splitting large files
> ----------------------------------------------------------------
>
> Key: CAMEL-9735
> URL: https://issues.apache.org/jira/browse/CAMEL-9735
> Project: Camel
> Issue Type: Improvement
> Components: camel-tarfile
> Affects Versions: 2.16.2
> Reporter: Sverker Abrahamsson
>
> After the change in https://issues.apache.org/jira/browse/CAMEL-9375 I started to get failures with the following stacktrace:
> {noformat}
> Caused by: java.lang.OutOfMemoryError: Java heap space
> at java.util.Arrays.copyOf(Arrays.java:3236)
> at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
> at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
> at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
> at org.apache.camel.converter.stream.CachedOutputStream.write(CachedOutputStream.java:104)
> at org.apache.camel.util.IOHelper.copy(IOHelper.java:199)
> at org.apache.camel.util.IOHelper.copy(IOHelper.java:169)
> at org.apache.camel.util.IOHelper.copyAndCloseInput(IOHelper.java:218)
> at org.apache.camel.util.IOHelper.copyAndCloseInput(IOHelper.java:214)
> at org.apache.camel.converter.stream.StreamCacheConverter.convertToStreamCache(StreamCacheConverter.java:82)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at org.apache.camel.util.ObjectHelper.invokeMethod(ObjectHelper.java:1243)
> at org.apache.camel.impl.converter.StaticMethodTypeConverter.convertTo(StaticMethodTypeConverter.java:59)
> at org.apache.camel.impl.converter.BaseTypeConverterRegistry.doConvertTo(BaseTypeConverterRegistry.java:293)
> at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:168)
> at org.apache.camel.dataformat.tarfile.TarIterator.createNextMessage(TarIterator.java:121)
> at org.apache.camel.dataformat.tarfile.TarIterator.tryAdvanceToNext(TarIterator.java:100)
> at org.apache.camel.dataformat.tarfile.TarIterator.hasNext(TarIterator.java:78)
> at org.apache.camel.processor.Splitter$SplitterIterable$1.hasNext(Splitter.java:163)
> at org.apache.camel.processor.Splitter.updateNewExchange(Splitter.java:256)
> {noformat}
> I.e. using StreamCache makes the whole entry go into memory and since they in my usecase are several gigabytes it doesn't work very well. I realize that this might be caused since I don't set any StreamCachingStrategy on my context but reading the corresponding doc part I get the impression that the default settings should be that it will spool to disk after reading 128 kbyte.
> However, I really don't want it to do that neither as that would 1) be a significant overhead to write gigabytes of data to a temp file and 2) I might not even have that much space where my temp directory is located. Instead the functionality that I want is that the tarfile entries are streamed and written directly to the destination files without any unnecessary caching in between.
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