Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id C665911029 for ; Sat, 23 Aug 2014 21:36:12 +0000 (UTC) Received: (qmail 55414 invoked by uid 500); 23 Aug 2014 21:36:11 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 55288 invoked by uid 500); 23 Aug 2014 21:36:11 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 54982 invoked by uid 99); 23 Aug 2014 21:36:11 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 23 Aug 2014 21:36:11 +0000 Date: Sat, 23 Aug 2014 21:36:11 +0000 (UTC) From: "Arpit Agarwal (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HDFS-6934) Move checksum computation off the hot path when writing to RAM disk MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Arpit Agarwal created HDFS-6934: ----------------------------------- Summary: Move checksum computation off the hot path when writing to RAM disk Key: HDFS-6934 URL: https://issues.apache.org/jira/browse/HDFS-6934 Project: Hadoop HDFS Issue Type: Sub-task Environment: Since local RAM is considered reliable we can avoid writing checksums on the hot path when replicas are being written to a local RAM disk. The checksum can be computed by the lazy writer when moving replicas to disk. Reporter: Arpit Agarwal -- This message was sent by Atlassian JIRA (v6.2#6252)