Return-Path: Delivered-To: apmail-hbase-user-archive@www.apache.org Received: (qmail 72555 invoked from network); 2 Nov 2010 15:15:03 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 2 Nov 2010 15:15:03 -0000 Received: (qmail 62375 invoked by uid 500); 2 Nov 2010 15:15:33 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 62184 invoked by uid 500); 2 Nov 2010 15:15:32 -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 62175 invoked by uid 99); 2 Nov 2010 15:15:31 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Nov 2010 15:15:31 +0000 X-ASF-Spam-Status: No, hits=-2.3 required=10.0 tests=RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of buttler1@llnl.gov designates 128.115.41.82 as permitted sender) Received: from [128.115.41.82] (HELO nspiron-2.llnl.gov) (128.115.41.82) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Nov 2010 15:15:22 +0000 X-Attachments: None Received: from nspexhub-1.llnl.gov (HELO nspexhub-1.the-lab.llnl.gov) ([128.115.54.113]) by nspiron-2.llnl.gov with ESMTP; 02 Nov 2010 08:15:00 -0700 Received: from NSPEXMBX-A.the-lab.llnl.gov ([128.115.54.101]) by nspexhub-1.the-lab.llnl.gov ([172.16.54.113]) with mapi; Tue, 2 Nov 2010 08:15:00 -0700 From: "Buttler, David" To: "user@hbase.apache.org" Date: Tue, 2 Nov 2010 08:14:58 -0700 Subject: RE: Setting the heap size Thread-Topic: Setting the heap size Thread-Index: Act3dKezZwpBb38NRy2hT8p4GLcbGgDK9x9A Message-ID: <2D6136772A13B84E95DF6DA79E85A9F00130C956D369@NSPEXMBX-A.the-lab.llnl.gov> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org For setting the memory on the zookeeper node, I think you can simply use th= e heap size for hbase, if you are using hbase to manage zookeeper. I don't= think you will need more than 1G, depending on what else you are using it = for. Dave -----Original Message----- From: Tim Robertson [mailto:timrobertson100@gmail.com]=20 Sent: Friday, October 29, 2010 7:21 AM To: user@hbase.apache.org Subject: Re: Setting the heap size Hi Sean, Based on the HBase user recommendations: http://BLOCKEDsearch.gmane.org/?query=3DAdvice+sought+for+mixed+hardware+in= stallation&group=3Dgmane.comp.java.hadoop.hbase.user It's a mixed hardware configuration. In truth, we will likely run 1 mapper on each DN to make the most of data locality. The 3 TT nodes are hefty dual quad with hyper threading and 24G, but the 9 RS are only single quad and 8G Cheers, Tim On Fri, Oct 29, 2010 at 4:11 PM, Sean Bigdatafun wrote: > Why would you only run 9 RS and leave 3 mapreduce-only nodes? I can't see > any benefit of doing that. > > Sean > > On Thu, Oct 28, 2010 at 2:52 AM, Tim Robertson wrote: > >> Hi all, >> >> We are setting up a small Hadoop 13 node cluster running 1 HDFS >> master, 9 region severs for HBase and 3 map reduce nodes, and are just >> installing zookeeper to perform the HBase coordination and to manage a >> few simple process locks for other tasks we run. >> >> Could someone please advise what kind on heap we should give to our >> single ZK node and also (ahem) how does one actually set this? It's >> not immediately obvious in the docs or config. >> >> Thanks, >> Tim >> >