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 93334186EA for ; Thu, 1 Oct 2015 20:14:27 +0000 (UTC) Received: (qmail 59943 invoked by uid 500); 1 Oct 2015 20:14:27 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 59831 invoked by uid 500); 1 Oct 2015 20:14:27 -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 59599 invoked by uid 99); 1 Oct 2015 20:14:27 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Oct 2015 20:14:27 +0000 Date: Thu, 1 Oct 2015 20:14:27 +0000 (UTC) From: "stack (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-9187) Check if tracer is null before using it 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-9187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940338#comment-14940338 ] stack commented on HDFS-9187: ----------------------------- [~iwasakims] Yeah, we should probably get a NullTracer in... Less null-checks all around. Would be htrace-4.0.2? > Check if tracer is null before using it > --------------------------------------- > > Key: HDFS-9187 > URL: https://issues.apache.org/jira/browse/HDFS-9187 > Project: Hadoop HDFS > Issue Type: Bug > Components: tracing > Affects Versions: 2.8.0 > Reporter: stack > > Saw this where an hbase that has not been updated to htrace-4.0.1 was trying to start: > {code} > Oct 1, 5:12:11.861 AM FATAL org.apache.hadoop.hbase.master.HMaster > Failed to become active master > java.lang.NullPointerException > at org.apache.hadoop.fs.Globber.glob(Globber.java:145) > at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1634) > at org.apache.hadoop.hbase.util.FSUtils.getTableDirs(FSUtils.java:1372) > at org.apache.hadoop.hbase.util.FSTableDescriptors.getAll(FSTableDescriptors.java:206) > at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:619) > at org.apache.hadoop.hbase.master.HMaster.access$500(HMaster.java:169) > at org.apache.hadoop.hbase.master.HMaster$1.run(HMaster.java:1481) > at java.lang.Thread.run(Thread.java:745) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)