Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8193818468 for ; Mon, 18 Jan 2016 18:32:45 +0000 (UTC) Received: (qmail 27079 invoked by uid 500); 18 Jan 2016 18:32:40 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 27026 invoked by uid 500); 18 Jan 2016 18:32:40 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 26988 invoked by uid 99); 18 Jan 2016 18:32:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 18 Jan 2016 18:32:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 08CE92C1F5D for ; Mon, 18 Jan 2016 18:32:40 +0000 (UTC) Date: Mon, 18 Jan 2016 18:32:40 +0000 (UTC) From: "Chris Nauroth (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HADOOP-12635) Adding Append API support for WASB MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HADOOP-12635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Chris Nauroth updated HADOOP-12635: ----------------------------------- Release Note: The Azure Blob Storage file system (WASB) now includes optional support for use of the append API by a single writer on a path. Please note that the implementation differs from the semantics of HDFS append. HDFS append internally guarantees that only a single writer may append to a path at a given time. WASB does not enforce this guarantee internally. Instead, the application must enforce access by a single writer, such as by running single-threaded or relying on some external locking mechanism to coordinate concurrent processes. > Adding Append API support for WASB > ---------------------------------- > > Key: HADOOP-12635 > URL: https://issues.apache.org/jira/browse/HADOOP-12635 > Project: Hadoop Common > Issue Type: New Feature > Components: azure > Affects Versions: 2.7.1 > Reporter: Dushyanth > Assignee: Dushyanth > Fix For: 2.8.0 > > Attachments: Append API.docx, HADOOP-12635-004.patch, HADOOP-12635.001.patch, HADOOP-12635.002.patch, HADOOP-12635.003.patch, HADOOP-12635.005.patch, HADOOP-12635.006.patch, HADOOP-12635.007.patch > > > Currently the WASB implementation of the HDFS interface does not support Append API. This JIRA is added to design and implement the Append API support to WASB. The intended support for Append would only support a single writer. -- This message was sent by Atlassian JIRA (v6.3.4#6332)