Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id C662A1750F for ; Mon, 15 Jun 2015 12:14:00 +0000 (UTC) Received: (qmail 70298 invoked by uid 500); 15 Jun 2015 12:14:00 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 70249 invoked by uid 500); 15 Jun 2015 12:14:00 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 70237 invoked by uid 99); 15 Jun 2015 12:14:00 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 15 Jun 2015 12:14:00 +0000 Date: Mon, 15 Jun 2015 12:14:00 +0000 (UTC) From: "Ashish Singhi (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-13901) Error while calling watcher on creating and deleting an HBase table 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/HBASE-13901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ashish Singhi updated HBASE-13901: ---------------------------------- Attachment: HBASE-13901.patch > Error while calling watcher on creating and deleting an HBase table > ------------------------------------------------------------------- > > Key: HBASE-13901 > URL: https://issues.apache.org/jira/browse/HBASE-13901 > Project: HBase > Issue Type: Bug > Reporter: neha > Assignee: Ashish Singhi > Priority: Minor > Attachments: HBASE-13901.patch > > > [Scenario for Reproducing ] : > 1. Create and delete 10 different HBase tables concurrently (10 threads creating, disabling and deleting their own tables) > 2. Check the HBase Master logs( Null Pointer Exceptions observed caused by data race) > {noformat} > ERROR [main-EventThread] zookeeper.ClientCnxn: Error while calling watcher > java.lang.NullPointerException > at org.apache.hadoop.hbase.zookeeper.ZKUtil$NodeAndData.isEmpty(ZKUtil.java:667) > at org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.refreshNodes(ZKPermissionWatcher.java:152) > at org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.nodeChildrenChanged(ZKPermissionWatcher.java:142) > at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:439) > at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:543) > at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:518) > 2015-06-05 20:32:04,553 INFO [B.defaultRpcServer.handler=24,queue=4,port=16000] client.ConnectionManager$HConnectionImplementation: Closing zookeeper sessionid=0x200541f1fd400c0 > 2015-06-05 20:32:04,561 INFO [B.defaultRpcServer.handler=24,queue=4,port=16000] zookeeper.ZooKeeper: Session: 0x200541f1fd400c0 closed > 2015-06-05 20:32:04,561 INFO [B.defaultRpcServer.handler=24,queue=4,port=16000-EventThread] zookeeper.ClientCnxn: EventThread shut down > 2015-06-05 20:32:04,631 INFO [B.defaultRpcServer.handler=7,queue=2,port=16000] client.ConnectionManager$HConnectionImplementation: Closing zookeeper sessionid=0x200541f1fd400c2 > 2015-06-05 20:32:04,644 INFO [B.defaultRpcServer.handler=7,queue=2,port=16000] zookeeper.ZooKeeper: Session: 0x200541f1fd400c2 closed > 2015-06-05 20:32:04,644 INFO [B.defaultRpcServer.handler=7,queue=2,port=16000-EventThread] zookeeper.ClientCnxn: EventThread shut down > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)