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https://issues.apache.org/jira/browse/IO-544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Poulter updated IO-544:
----------------------------
Description:
I've been struggling to troubleshoot intermittent {{IOExceptions}} thrown from
{{FileUtils.doCopyFile}} when copying 2-4KB files from a local temporary file
to a network drive. Despite the error, the file appears on the network drive
when I check. Should the output channel/buffer be forced/flushed before
closing, and synchronized before comparing the file lengths? It's a rather
intermittent issue on a relatively high throughput PC so I'd expect there to be
more IO latency than normal.
I found myself referencing:
* [The source code for FileUtils
v2.5](https://commons.apache.org/proper/commons-io/javadocs/api-2.5/src-html/org/apache/commons/io/FileUtils.html)
*
[FileChannel#force(boolean)](https://docs.oracle.com/javase/8/docs/api/java/nio/channels/FileChannel.html#force-boolean-)
* [IO-443 - FileUtils.copyFile methods throw an unnecessary "Failed to copy
full contents from" exception](https://issues.apache.org/jira/browse/IO-443)
Thanks,
Sean
was:
I've been struggling to troubleshoot intermittent {{IOExceptions}} thrown from
{{FileUtils.doCopyFile}} when copying 2-4KB files from a local temporary file
to a network drive. Despite the error, the file appears on the network drive
when I check. Should the output channel/buffer be forced/flushed before
closing, and synchronized before comparing the file lengths? It's a rather
intermittent issue on a relatively high throughput PC so I'd expect there to be
more IO latency than normal.
Thanks,
Sean
> Could FileUtils.copyFile not be flushed and synced when comparing file sizes?
> -----------------------------------------------------------------------------
>
> Key: IO-544
> URL: https://issues.apache.org/jira/browse/IO-544
> Project: Commons IO
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.5
> Environment: Win Server 2008, x86
> Reporter: Sean Poulter
>
> I've been struggling to troubleshoot intermittent {{IOExceptions}} thrown
> from {{FileUtils.doCopyFile}} when copying 2-4KB files from a local temporary
> file to a network drive. Despite the error, the file appears on the network
> drive when I check. Should the output channel/buffer be forced/flushed before
> closing, and synchronized before comparing the file lengths? It's a rather
> intermittent issue on a relatively high throughput PC so I'd expect there to
> be more IO latency than normal.
> I found myself referencing:
> * [The source code for FileUtils
> v2.5](https://commons.apache.org/proper/commons-io/javadocs/api-2.5/src-html/org/apache/commons/io/FileUtils.html)
> *
> [FileChannel#force(boolean)](https://docs.oracle.com/javase/8/docs/api/java/nio/channels/FileChannel.html#force-boolean-)
> * [IO-443 - FileUtils.copyFile methods throw an unnecessary "Failed to copy
> full contents from" exception](https://issues.apache.org/jira/browse/IO-443)
> Thanks,
> Sean
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