Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@cassandra.apache.org
Date: Tue, 13 May 2014 23:20:17 +0000 (UTC)
From: "Joshua McKenzie (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12707042.1396909616903.341806.1400023217740@arcas>
In-Reply-To: <JIRA.12707042.1396909616903@arcas>
References: <JIRA.12707042.1396909616903@arcas>
Subject: [jira] [Updated] (CASSANDRA-6993) Windows: remove mmap'ed I/O for
 index files and force standard file access
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/CASSANDRA-6993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua McKenzie updated CASSANDRA-6993:
---------------------------------------

    Labels: Windows  (was: )

> Windows: remove mmap'ed I/O for index files and force standard file access
> --------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6993
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6993
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Joshua McKenzie
>            Assignee: Joshua McKenzie
>            Priority: Minor
>              Labels: Windows
>             Fix For: 3.0
>
>         Attachments: 6993_v1.txt, 6993_v2.txt
>
>
> Memory-mapped I/O on Windows causes issues with hard-links; we're unable to delete hard-links to open files with memory-mapped segments even using nio.  We'll need to push for close to performance parity between mmap'ed I/O and buffered going forward as the buffered / compressed path offers other benefits.


--
This message was sent by Atlassian JIRA
(v6.2#6252)