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 B0EA118339 for ; Fri, 15 May 2015 18:25:33 +0000 (UTC) Received: (qmail 58671 invoked by uid 500); 15 May 2015 18:25:31 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 58604 invoked by uid 500); 15 May 2015 18:25:31 -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 58592 invoked by uid 99); 15 May 2015 18:25:31 -0000 Received: from Unknown (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 May 2015 18:25:31 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 9092B18283E for ; Fri, 15 May 2015 18:25:30 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2.899 X-Spam-Level: ** X-Spam-Status: No, score=2.899 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=3, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=disabled Authentication-Results: spamd3-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-us-west.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id kNQSLq8MaYGC for ; Fri, 15 May 2015 18:25:20 +0000 (UTC) Received: from mail-oi0-f48.google.com (mail-oi0-f48.google.com [209.85.218.48]) by mx1-us-west.apache.org (ASF Mail Server at mx1-us-west.apache.org) with ESMTPS id 58BCB2123A for ; Fri, 15 May 2015 18:25:20 +0000 (UTC) Received: by oiko83 with SMTP id o83so88770644oik.1 for ; Fri, 15 May 2015 11:25:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=JFcdO8g/47CGzgwXYGhMtfsNz6AVvihIRjRCAjgMJTE=; b=C6qiLtqbzxPQYtyXfnu+KvScymi5ul4vMJ6Ap/kkvU3NpwlFRAk0ZOBUsX4RZ9Bdfy G/0KGz4QO9U9U3Uarly6+7WvHKu/QDUchHHPhOlBrzT/kaCbADqPe1NoXywzJKMBq/D9 CUhUOB4UCS/UKzwcOefd9rxWC9WUt0zU1yJvcDYvHX+6CCSkzsvqYyVNibWQWEaG6AA5 KeF7BiXUBbIoFuqPyZJr6OX+sP05sFfbL958numutDSpRgb1P28i+PWh1dOwq97NGWB4 qn/FZRL5f4WLDDpuVu4Wnye2r6rgGRjEQmzjfp8He6vCKksrTSv5nhyfDmGZPqgiDpO2 OQdw== MIME-Version: 1.0 X-Received: by 10.202.168.66 with SMTP id r63mr9030717oie.32.1431714319750; Fri, 15 May 2015 11:25:19 -0700 (PDT) Received: by 10.202.177.2 with HTTP; Fri, 15 May 2015 11:25:19 -0700 (PDT) In-Reply-To: <761bc4c9.1bc2e.14d51cbee90.Coremail.c77_cn@163.com> References: <397b8c9c.62a5.14d4b2663e1.Coremail.c77_cn@163.com> <658d032e.d5d7.14d4c48dae0.Coremail.c77_cn@163.com> <761bc4c9.1bc2e.14d51cbee90.Coremail.c77_cn@163.com> Date: Fri, 15 May 2015 11:25:19 -0700 Message-ID: Subject: Re: Re: Re: How to know the root reason to cause RegionServer OOM? From: Ted Yu To: "user@hbase.apache.org" Content-Type: multipart/alternative; boundary=001a113cce0272db59051622f728 --001a113cce0272db59051622f728 Content-Type: text/plain; charset=UTF-8 I got '502 Bad Gateway' trying to access the post David mentioned. Here is the same article in case you get 502 error: http://java.dzone.com/articles/OOM-relation-to-swappiness FYI On Thu, May 14, 2015 at 2:40 AM, David chen wrote: > Thanks for guys' helps. > Maybe the root reason is to turn off swap. > The cluster contains seven Region servers, although all set vm.swappiness > to 0, but two of them has always turned off swap, others turned on. > Meanwhile OOM also always encountered on the two machines. > I plan to turn on swap and also set vm.swappiness to 1, the latter is > because of the post(http://www.innomysql.net/article/2790.html). > Any ideas? --001a113cce0272db59051622f728--