Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-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 BAC1F17973 for ; Fri, 22 May 2015 04:58:13 +0000 (UTC) Received: (qmail 74109 invoked by uid 500); 22 May 2015 04:58:11 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 74044 invoked by uid 500); 22 May 2015 04:58:11 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 74032 invoked by uid 99); 22 May 2015 04:58:11 -0000 Received: from Unknown (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 22 May 2015 04:58:11 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id E8C1CC11B9 for ; Fri, 22 May 2015 04:58:10 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 3.129 X-Spam-Level: *** X-Spam-Status: No, score=3.129 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, HTML_MESSAGE=3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd4-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-eu-west.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id GjBdHmkB_84w for ; Fri, 22 May 2015 04:58:10 +0000 (UTC) Received: from mail-wg0-f53.google.com (mail-wg0-f53.google.com [74.125.82.53]) by mx1-eu-west.apache.org (ASF Mail Server at mx1-eu-west.apache.org) with ESMTPS id B8A7525431 for ; Fri, 22 May 2015 04:58:09 +0000 (UTC) Received: by wgbgq6 with SMTP id gq6so6514709wgb.3 for ; Thu, 21 May 2015 21:57:24 -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=BtRlim+ZA3ePrpWKJ3HHkBQyIFVaGb03zI04WjbI69s=; b=uanQrT4IagskOwM9kXZMG/HN4P3hpN7ofa0xjsDm4enChPYbhQ/Twj/mNPgioY2+Kc 9W3/4goyOcLaNaScQi+ySyVEcHXT44Xv3d5aGBKc4lSR70QmxPTxjGlTj0ntpi1RTYd5 l4gloeC89D13TwnODSopo2IzlH7gAHzQEPJcX/4hBlhVALVTeLTDtbYrZt17stnMqInd GlDiougKZDsuQapNHOr3evtX15rl8Hh1kEOzql0s3tU11p7l8D3y3lA3TPpMpw3luKxP 6bjw57dzNJlpCZTs3vHB/tyiJnekw611GqJIXuhQuBMTZSsBbFTfm5Fv0pHS13zQE89B zzlg== MIME-Version: 1.0 X-Received: by 10.180.20.200 with SMTP id p8mr3652636wie.78.1432270644420; Thu, 21 May 2015 21:57:24 -0700 (PDT) Received: by 10.28.184.15 with HTTP; Thu, 21 May 2015 21:57:24 -0700 (PDT) Date: Fri, 22 May 2015 10:27:24 +0530 Message-ID: Subject: avoiding hot spot for timestamp prefix key From: Shushant Arora To: user@hbase.apache.org Content-Type: multipart/alternative; boundary=bcaec53f35effba3910516a47ecb --bcaec53f35effba3910516a47ecb Content-Type: text/plain; charset=UTF-8 Can I avoid hotspot of region with custom region split policy in hbase >0.96 . Key is of the form timestamp#guid. So can I have custom region split policy and use second part of key (i.e) guid as region split criteria and avoid hot spot?? --bcaec53f35effba3910516a47ecb--