Return-Path: Delivered-To: apmail-zookeeper-user-archive@www.apache.org Received: (qmail 98874 invoked from network); 1 Apr 2011 17:57:54 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 1 Apr 2011 17:57:54 -0000 Received: (qmail 9262 invoked by uid 500); 1 Apr 2011 17:57:54 -0000 Delivered-To: apmail-zookeeper-user-archive@zookeeper.apache.org Received: (qmail 9218 invoked by uid 500); 1 Apr 2011 17:57:54 -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 9210 invoked by uid 500); 1 Apr 2011 17:57:54 -0000 Delivered-To: apmail-hadoop-zookeeper-user@hadoop.apache.org Received: (qmail 9203 invoked by uid 99); 1 Apr 2011 17:57:54 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 01 Apr 2011 17:57:54 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.9] (HELO minotaur.apache.org) (140.211.11.9) by apache.org (qpsmtpd/0.29) with SMTP; Fri, 01 Apr 2011 17:57:53 +0000 Received: (qmail 98816 invoked by uid 99); 1 Apr 2011 17:57:32 -0000 Received: from localhost.apache.org (HELO mail-ww0-f48.google.com) (127.0.0.1) (smtp-auth username mahadev, mechanism plain) by minotaur.apache.org (qpsmtpd/0.29) with ESMTP; Fri, 01 Apr 2011 17:57:32 +0000 Received: by wwi18 with SMTP id 18so4854719wwi.29 for ; Fri, 01 Apr 2011 10:57:30 -0700 (PDT) MIME-Version: 1.0 Received: by 10.216.254.82 with SMTP id g60mr3995974wes.90.1301680650391; Fri, 01 Apr 2011 10:57:30 -0700 (PDT) Received: by 10.216.153.196 with HTTP; Fri, 1 Apr 2011 10:57:30 -0700 (PDT) Date: Fri, 1 Apr 2011 10:57:30 -0700 Message-ID: Subject: ZK bug that removes all data. From: Mahadev Konar To: zookeeper-dev@hadoop.apache.org, zookeeper-user@hadoop.apache.org Content-Type: text/plain; charset=ISO-8859-1 HI all, We have just noticed that there is ZK bug which deletes all the files in the local file system. This may sound weird but to prevent this bug from happening, you will have to pour some cold water on the machines that you run ZooKeeper on. Make sure that the water temperature is less than 7 C. If you still see files being deleted in your system, try pouring some boiling water on the machine. Hope that you do not lose your data! -- thanks mahadev @mahadevkonar