Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-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 4CAF617FD8 for ; Thu, 30 Oct 2014 14:01:45 +0000 (UTC) Received: (qmail 34506 invoked by uid 500); 30 Oct 2014 14:01:40 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 34461 invoked by uid 500); 30 Oct 2014 14:01:40 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 34400 invoked by uid 99); 30 Oct 2014 14:01:39 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Oct 2014 14:01:39 +0000 Date: Thu, 30 Oct 2014 14:01:39 +0000 (UTC) From: "Hudson (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-7263) Snapshot read can reveal future bytes for appended files. 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/HDFS-7263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14190086#comment-14190086 ] Hudson commented on HDFS-7263: ------------------------------ FAILURE: Integrated in Hadoop-Hdfs-trunk #1917 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1917/]) HDFS-7263. Snapshot read can reveal future bytes for appended files. Contributed by Tao Luo. (shv: rev 0126cf16b73843da2e504b6a03fee8bd93a404d5) * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java * hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotFileLength.java * hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt > Snapshot read can reveal future bytes for appended files. > --------------------------------------------------------- > > Key: HDFS-7263 > URL: https://issues.apache.org/jira/browse/HDFS-7263 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Affects Versions: 2.5.0 > Reporter: Konstantin Shvachko > Assignee: Tao Luo > Fix For: 2.7.0 > > Attachments: HDFS-7263.patch, HDFS-7263.patch, HDFS-7263.patch, TestSnapshotRead.java > > > The following sequence of steps will produce extra bytes, that should not be visible, because they are not in the snapshot. > * Create a file of size L, where {{L % blockSize != 0}}. > * Create a snapshot > * Append bytes to the file > * Read file in the snapshot (not the current file) > * You will see the bytes are read beoynd the original file size L -- This message was sent by Atlassian JIRA (v6.3.4#6332)