Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 3EAD5F52B for ; Fri, 19 Apr 2013 16:47:17 +0000 (UTC) Received: (qmail 14481 invoked by uid 500); 19 Apr 2013 16:47:16 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 14381 invoked by uid 500); 19 Apr 2013 16:47:16 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 14354 invoked by uid 99); 19 Apr 2013 16:47:15 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 19 Apr 2013 16:47:15 +0000 Date: Fri, 19 Apr 2013 16:47:15 +0000 (UTC) From: "Nicolas Liochon (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HBASE-8382) NPE in HBaseServer$Connection.readAndProcess MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Nicolas Liochon created HBASE-8382: -------------------------------------- Summary: NPE in HBaseServer$Connection.readAndProcess Key: HBASE-8382 URL: https://issues.apache.org/jira/browse/HBASE-8382 Project: HBase Issue Type: Bug Components: regionserver Affects Versions: 0.95.0 Reporter: Nicolas Liochon {noformat} 2013-04-19 12:27:02,387 WARN [IPC Server handler 8 on 60020] org.apache.hadoop.ipc.HBaseServer: IPC Server handler 8 on 60020: caught a ClosedChannelException, this means that the server was processing a request but the client went away. The error message was: null 2013-04-19 12:27:02,865 WARN [IPC Server handler 9 on 60020] org.apache.hadoop.ipc.HBaseServer: (responseTooSlow): {"processingtimems":23963,"call":"multi(org.apache.hadoop.hbase.protobuf.generated.ClientProtos$MultiRequest)","client":"10.240.70.79:58162","starttimems":1366388798900,"queuetimems":110004,"class":"HRegionServer","responsesize":18240,"method":"multi"} 2013-04-19 12:28:38,675 WARN [IPC Reader 3 on port 60020] org.apache.hadoop.ipc.HBaseServer: IPC Server listener on 60020: count of bytes read: 0 java.lang.NullPointerException at org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1504) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:803) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:596) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:571) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) 2013-04-19 12:32:00,974 DEBUG [LRU Statistics #0] org.apache.hadoop.hbase.io.hfile.LruBlockCache: Stats: total=10.24 MB, free=1.21 GB, max=1.22 GB, blocks=0, accesses=11822, hits=9, hitRatio=0.08%, , cachingAccesses=11, cachingHits=7, cachingHitsRatio=63.64%, , evictions=0, evicted=4, evictedPerRun=Infinity {noformat} Given the code, it seems that the connection is closed in parallel, changing the value of data in the middle of a "readAndProcess" I don't know if it's related, but the client failed after a few retries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira