Return-Path: Delivered-To: apmail-hadoop-hbase-dev-archive@locus.apache.org Received: (qmail 48099 invoked from network); 18 Jul 2008 01:12:22 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 18 Jul 2008 01:12:22 -0000 Received: (qmail 6811 invoked by uid 500); 18 Jul 2008 01:12:22 -0000 Delivered-To: apmail-hadoop-hbase-dev-archive@hadoop.apache.org Received: (qmail 6795 invoked by uid 500); 18 Jul 2008 01:12:22 -0000 Mailing-List: contact hbase-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hbase-dev@hadoop.apache.org Delivered-To: mailing list hbase-dev@hadoop.apache.org Received: (qmail 6784 invoked by uid 99); 18 Jul 2008 01:12:22 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 17 Jul 2008 18:12:22 -0700 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 18 Jul 2008 01:11:37 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id C3ECD234C172 for ; Thu, 17 Jul 2008 18:11:31 -0700 (PDT) Message-ID: <1555583775.1216343491801.JavaMail.jira@brutus> Date: Thu, 17 Jul 2008 18:11:31 -0700 (PDT) From: "Andrew Purtell (JIRA)" To: hbase-dev@hadoop.apache.org Subject: [jira] Commented: (HBASE-750) NPE caused by StoreFileScanner.updateReaders In-Reply-To: <141864288.1216319012280.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/HBASE-750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614596#action_12614596 ] Andrew Purtell commented on HBASE-750: -------------------------------------- I can reproduce this also with 677784, updated maybe 60 minutes ago. > NPE caused by StoreFileScanner.updateReaders > -------------------------------------------- > > Key: HBASE-750 > URL: https://issues.apache.org/jira/browse/HBASE-750 > Project: Hadoop HBase > Issue Type: Bug > Components: regionserver > Affects Versions: 0.2.0 > Environment: CentOS 5.1 x86_64 / 64-bit JDK build 1.6.0_03-b05 > Reporter: Andrew Purtell > Attachments: chart.png, columntest.java, HRegionServer-sjdc-atr-test-4.log, output.txt > > > Running a test to determine performance during inserts of many 100,000s of cells into a single column family in a single row, the region server involved went down after taking a NPE: > 2008-07-17 18:12:18,051 FATAL org.apache.hadoop.hbase.regionserver.Flusher: Replay of hlog required. Forcing server restart > org.apache.hadoop.hbase.DroppedSnapshotException > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1040) > at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:942) > at org.apache.hadoop.hbase.regionserver.Flusher.flushRegion(Flusher.java:174) > at org.apache.hadoop.hbase.regionserver.Flusher.run(Flusher.java:93) > Caused by: java.lang.NullPointerException > at java.lang.String.(String.java:516) > at org.apache.hadoop.hbase.util.Bytes.toString(Bytes.java:71) > at org.apache.hadoop.hbase.regionserver.StoreFileScanner.updateReaders(StoreFileScanner.java:374) > at org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:797) > at org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:784) > at org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:755) > at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:682) > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1030) > ... 3 more > Any ideas about this one? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.