Return-Path: X-Original-To: apmail-zookeeper-user-archive@www.apache.org Delivered-To: apmail-zookeeper-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id ADD9711E1B for ; Wed, 17 Sep 2014 02:57:50 +0000 (UTC) Received: (qmail 38313 invoked by uid 500); 17 Sep 2014 02:57:50 -0000 Delivered-To: apmail-zookeeper-user-archive@zookeeper.apache.org Received: (qmail 38284 invoked by uid 500); 17 Sep 2014 02:57:50 -0000 Mailing-List: contact user-help@zookeeper.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@zookeeper.apache.org Delivered-To: mailing list user@zookeeper.apache.org Received: (qmail 38270 invoked by uid 99); 17 Sep 2014 02:57:49 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Sep 2014 02:57:49 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS,WEIRD_PORT X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of tobeg3oogle@gmail.com designates 209.85.215.50 as permitted sender) Received: from [209.85.215.50] (HELO mail-la0-f50.google.com) (209.85.215.50) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Sep 2014 02:57:22 +0000 Received: by mail-la0-f50.google.com with SMTP id ty20so1002979lab.9 for ; Tue, 16 Sep 2014 19:57:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=0166Q6ctrtBxU4c7FtV31zGXX6Laj9eDFadfH3xA7dk=; b=fkqZ7IZkpDv8fX9k4kYau4W6gnefAZu6Fxj8aeKg2/L+9Hx90OyJskO0l3LqL3iVQo OiH1KtbyVeqE5PpuM5GRcwEpxnb7nLQZrK2f2u5ES4SNf8+yGwlGbZ7NKpcD20rBLKtp U3NrgoyQWlhKb4S+VSoTcXCnA4B1ghDIyCGphBTGNNg8PbblVSc44P91zH7oHccbOoLz tlRgpDEYTGIL8oqkPBuN4o9zL1xg79ldk+MqaXODltiUzIuu31qmDFUaqCaNYGsJjXkZ 1AvG03EZlpDMB5meDggW3qCppOV9nzDHEsB6fdyOqlwH4fL4KlNAvIG1I3Dy9grUvURY ofIw== MIME-Version: 1.0 X-Received: by 10.152.27.66 with SMTP id r2mr12108625lag.84.1410922641660; Tue, 16 Sep 2014 19:57:21 -0700 (PDT) Received: by 10.25.25.149 with HTTP; Tue, 16 Sep 2014 19:57:21 -0700 (PDT) Date: Wed, 17 Sep 2014 10:57:21 +0800 Message-ID: Subject: Too many "Broken pipe" in ZooKeeper log From: tobe To: "user@zookeeper.apache.org" Content-Type: multipart/alternative; boundary=089e0158c070dca28a05033a0606 X-Virus-Checked: Checked by ClamAV on apache.org --089e0158c070dca28a05033a0606 Content-Type: text/plain; charset=UTF-8 Can any one help to explain why I get so many "Broken pipe IOE" in ZooKeeper log? ZooKeeper throws this exception almost every minute. I don't think we use the four letter command to dumpWatches so frequently. So what does this mean? 2014-09-17,10:52:09,179 ERROR org.apache.zookeeper.server.NIOServerCnxn: [myid:0] Error sending data synchronously java.io.IOException: Broken pipe at sun.nio.ch.FileDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:69) at sun.nio.ch.IOUtil.write(IOUtil.java:40) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:336) at org.apache.zookeeper.server.NIOServerCnxn.sendBufferSync(NIOServerCnxn.java:138) at org.apache.zookeeper.server.NIOServerCnxn$SendBufferWriter.checkFlush(NIOServerCnxn.java:453) at org.apache.zookeeper.server.NIOServerCnxn$SendBufferWriter.write(NIOServerCnxn.java:474) at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111) at java.io.BufferedWriter.write(BufferedWriter.java:212) at java.io.PrintWriter.write(PrintWriter.java:412) at java.io.PrintWriter.write(PrintWriter.java:429) at java.io.PrintWriter.print(PrintWriter.java:559) at java.io.PrintWriter.println(PrintWriter.java:695) at org.apache.zookeeper.server.WatchManager.dumpWatches(WatchManager.java:166) at org.apache.zookeeper.server.DataTree.dumpWatches(DataTree.java:1240) at org.apache.zookeeper.server.NIOServerCnxn$WatchCommand.commandRun(NIOServerCnxn.java:722) at org.apache.zookeeper.server.NIOServerCnxn$CommandThread.run(NIOServerCnxn.java:496) 2014-09-17,10:52:09,179 INFO org.apache.zookeeper.server.NIOServerCnxn: [myid:0] Closed socket connection for client /10.20.201.234:53756 which had sessionid 0x34840357f664081 2014-09-17,10:52:09,179 ERROR org.apache.zookeeper.server.NIOServerCnxn: [myid:0] Error sending data synchronously java.io.IOException: Broken pipe at sun.nio.ch.FileDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:69) at sun.nio.ch.IOUtil.write(IOUtil.java:40) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:336) at org.apache.zookeeper.server.NIOServerCnxn.sendBufferSync(NIOServerCnxn.java:138) at org.apache.zookeeper.server.NIOServerCnxn$SendBufferWriter.checkFlush(NIOServerCnxn.java:453) at org.apache.zookeeper.server.NIOServerCnxn$SendBufferWriter.write(NIOServerCnxn.java:474) at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111) at java.io.BufferedWriter.flush(BufferedWriter.java:235) at java.io.PrintWriter.flush(PrintWriter.java:276) at org.apache.zookeeper.server.NIOServerCnxn.cleanupWriterSocket(NIOServerCnxn.java:424) at org.apache.zookeeper.server.NIOServerCnxn.access$000(NIOServerCnxn.java:60) at org.apache.zookeeper.server.NIOServerCnxn$CommandThread.run(NIOServerCnxn.java:500) --089e0158c070dca28a05033a0606--