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Posted to issues@commons.apache.org by "Sean Poulter (JIRA)" <ji...@apache.org> on 2017/07/06 00:02:00 UTC
[jira] [Comment Edited] (IO-544) Should FileUtils.copyFile be
flushed and synced before comparing file sizes?
[ https://issues.apache.org/jira/browse/IO-544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075660#comment-16075660 ]
Sean Poulter edited comment on IO-544 at 7/6/17 12:01 AM:
----------------------------------------------------------
Ah, sorry. The problem is with [line 1162 in FileUtils|https://commons.apache.org/proper/commons-io/javadocs/api-2.5/src-html/org/apache/commons/io/FileUtils.html#line.1130].
was (Author: seanpltr):
Ah, sorry. The exception is thrown at [line 1160 in FileUtils|https://commons.apache.org/proper/commons-io/javadocs/api-2.5/src-html/org/apache/commons/io/FileUtils.html#line.1130].
> Should FileUtils.copyFile be flushed and synced before 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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