commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sebb (JIRA)" <>
Subject [jira] [Commented] (IO-269) Tailer locks file from deletion/rename on Windows
Date Fri, 08 Jun 2012 08:50:23 GMT


Sebb commented on IO-269:

bq. Marcos indicated that it was not the case in his benchmark.

The readLines() method won't return until it reaches EOF, so when run against a pre-existing
file there won't be any re-opens. It has to be run against a file that is growing.

bq. Do you have any benchmark to back up the less efficient statement? 

Yes, it can be up to about 45% slower. 
I used the attached benchmark (to follow), which simulates EOF by reading lines in chunks.
> Tailer locks file from deletion/rename on Windows
> -------------------------------------------------
>                 Key: IO-269
>                 URL:
>             Project: Commons IO
>          Issue Type: Bug
>            Reporter: Sebb
>         Attachments: IO-269-v2.patch, IO-269.patch
> The Tailer code works on Windows, except that it locks the file against deletion or rename.
> The test code fails to detect this, because it fails to check if the file deletion succeeds.
> This seems to be a Windows OS issue.
> A possible solution might be to keep closing and re-opening the file.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:!default.jspa
For more information on JIRA, see:


View raw message