commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sean Poulter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IO-544) Should FileUtils.copyFile be flushed and synced before comparing file sizes?
Date Fri, 07 Jul 2017 21:23:00 GMT

    [ https://issues.apache.org/jira/browse/IO-544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16078710#comment-16078710
] 

Sean Poulter commented on IO-544:
---------------------------------

Well, your hunch was right Bernd and I'm confused. Instead of a 0 length file, Files.copy
is reporting that the destination file is in use:

{{java.nio.file.FileSystemException: C:\...\file -> \\Machine2\...\file: The process cannot
access the file because it is being used by another process.}}

> 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



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message