Return-Path: Delivered-To: apmail-hadoop-hbase-user-archive@minotaur.apache.org Received: (qmail 22623 invoked from network); 13 Jan 2010 19:26:48 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 13 Jan 2010 19:26:48 -0000 Received: (qmail 54296 invoked by uid 500); 13 Jan 2010 19:26:47 -0000 Delivered-To: apmail-hadoop-hbase-user-archive@hadoop.apache.org Received: (qmail 54237 invoked by uid 500); 13 Jan 2010 19:26:47 -0000 Mailing-List: contact hbase-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hbase-user@hadoop.apache.org Delivered-To: mailing list hbase-user@hadoop.apache.org Received: (qmail 54227 invoked by uid 99); 13 Jan 2010 19:26:47 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Jan 2010 19:26:47 +0000 X-ASF-Spam-Status: No, hits=1.2 required=10.0 tests=SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [69.147.107.21] (HELO mrout2-b.corp.re1.yahoo.com) (69.147.107.21) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Jan 2010 19:26:37 +0000 Received: from SNV-EXBH01.ds.corp.yahoo.com (snv-exbh01.ds.corp.yahoo.com [207.126.227.249]) by mrout2-b.corp.re1.yahoo.com (8.13.8/8.13.8/y.out) with ESMTP id o0DJPaL1097614 for ; Wed, 13 Jan 2010 11:25:36 -0800 (PST) DomainKey-Signature: a=rsa-sha1; s=serpent; d=yahoo-inc.com; c=nofws; q=dns; h=received:user-agent:date:subject:from:to:message-id: thread-topic:thread-index:mime-version:content-type: content-transfer-encoding:x-originalarrivaltime; b=EyFXp3iIVRwn0YIcE/0AxgLt56Ecug225hhvZLJO3HNK4S88REEDw9d+dO8INYQG Received: from SNV-EXVS05.ds.corp.yahoo.com ([207.126.227.225]) by SNV-EXBH01.ds.corp.yahoo.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 13 Jan 2010 11:25:35 -0800 Received: from 10.72.146.250 ([10.72.146.250]) by SNV-EXVS05.ds.corp.yahoo.com ([207.126.227.45]) via Exchange Front-End Server snv-webmail.corp.yahoo.com ([207.126.227.60]) with Microsoft Exchange Server HTTP-DAV ; Wed, 13 Jan 2010 19:25:35 +0000 User-Agent: Microsoft-Entourage/12.19.0.090515 Date: Wed, 13 Jan 2010 11:25:31 -0800 Subject: Java client problem w/ zookeeper From: Adam Silberstein To: "hbase-user@hadoop.apache.org" Message-ID: Thread-Topic: Java client problem w/ zookeeper Thread-Index: AcqUhiuC5PN7oTy+gUG3ngHJ9rbQ4g== Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit X-OriginalArrivalTime: 13 Jan 2010 19:25:35.0950 (UTC) FILETIME=[2E7616E0:01CA9486] Hi, I set up a new Hbase cluster and am seeing an error I haven't seen before. When I start up Hbase I have this NodeExists error in the zookeeper log: org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2010-01-13 11:10:47,503 WARN org.apache.zookeeper.server.PrepRequestProcessor: Got exception when processing sessionid:0x1262918396b0002 type:create cxid:0xc zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) I've read that may be harmless. But then when I run the java client, it cannot do any operations. And I see a similar NodeExists error in the zookeeper log. 2010-01-13 11:11:24,661 INFO org.apache.zookeeper.server.NIOServerCnxn: Connected to /203.104.21.210:36928 lastZxid 0 2010-01-13 11:11:24,661 INFO org.apache.zookeeper.server.NIOServerCnxn: Creating new session 0x1262918396b0004 2010-01-13 11:11:24,664 INFO org.apache.zookeeper.server.NIOServerCnxn: Finished init of 0x1262918396b0004 valid:true 2010-01-13 11:11:24,973 WARN org.apache.zookeeper.server.PrepRequestProcessor: Got exception when processing sessionid:0x1262918396b0004 type:create cxid:0x2 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2010-01-13 11:11:33,088 WARN org.apache.zookeeper.server.NIOServerCnxn: Exception causing close of session 0x1262918396b0004 due to java.io.IOException: Read error 2010-01-13 11:11:33,089 INFO org.apache.zookeeper.server.NIOServerCnxn: closing session:0x1262918396b0004 NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/203.104.21.210:2181 remote=/203.104.21.210:36928] 2010-01-13 11:11:42,709 INFO org.apache.zookeeper.server.NIOServerCnxn: Connected to /203.104.21.212:54837 lastZxid 0 2010-01-13 11:11:42,709 INFO org.apache.zookeeper.server.NIOServerCnxn: Creating new session 0x1262918396b0005 2010-01-13 11:11:42,711 INFO org.apache.zookeeper.server.NIOServerCnxn: Finished init of 0x1262918396b0005 valid:true 2010-01-13 11:11:42,711 WARN org.apache.zookeeper.server.PrepRequestProcessor: Got exception when processing sessionid:0x1262918396b0005 type:create cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2010-01-13 11:12:06,002 INFO org.apache.zookeeper.server.SessionTrackerImpl: Expiring session 0x1262918396b0004 2010-01-13 11:12:06,002 INFO org.apache.zookeeper.server.ZooKeeperServer: Expiring session 0x1262918396b0004 2010-01-13 11:12:06,002 INFO org.apache.zookeeper.server.PrepRequestProcessor: Processed session termination request for id: 0x1262918396b0004 I've tried wiping the whole setup, including the zookeeper files that Hbase puts in /tmp and formatting HDFS. But I get the same problem again. I'm not seeing any exceptions on the client-side. Thanks, Adam