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 C8EAB102FF for ; Wed, 19 Feb 2014 00:49:36 +0000 (UTC) Received: (qmail 49564 invoked by uid 500); 19 Feb 2014 00:49:25 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 49450 invoked by uid 500); 19 Feb 2014 00:49:22 -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 49412 invoked by uid 99); 19 Feb 2014 00:49:20 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 19 Feb 2014 00:49:20 +0000 Date: Wed, 19 Feb 2014 00:49:20 +0000 (UTC) From: "Yongjun Zhang (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HDFS-5971) callers of NetworkTopology's chooseRandom method to expect null return value MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Yongjun Zhang created HDFS-5971: ----------------------------------- Summary: callers of NetworkTopology's chooseRandom method to expect null return value Key: HDFS-5971 URL: https://issues.apache.org/jira/browse/HDFS-5971 Project: Hadoop HDFS Issue Type: Bug Components: hdfs-client Affects Versions: 3.0.0 Reporter: Yongjun Zhang Class NetworkTopology's method public Node chooseRandom(String scope) calls private Node chooseRandom(String scope, String excludedScope) which may return null value. Callers of this method such as BlockPlacementPolicyDefault etc need to be aware that. -- This message was sent by Atlassian JIRA (v6.1.5#6160)