Return-Path: Delivered-To: apmail-hadoop-hbase-dev-archive@minotaur.apache.org Received: (qmail 1055 invoked from network); 3 Oct 2009 20:35:46 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 3 Oct 2009 20:35:46 -0000 Received: (qmail 75869 invoked by uid 500); 3 Oct 2009 20:35:46 -0000 Delivered-To: apmail-hadoop-hbase-dev-archive@hadoop.apache.org Received: (qmail 75818 invoked by uid 500); 3 Oct 2009 20:35:46 -0000 Mailing-List: contact hbase-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hbase-dev@hadoop.apache.org Delivered-To: mailing list hbase-dev@hadoop.apache.org Received: (qmail 75806 invoked by uid 99); 3 Oct 2009 20:35:46 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 03 Oct 2009 20:35:46 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of zshao9@gmail.com designates 209.85.210.194 as permitted sender) Received: from [209.85.210.194] (HELO mail-yx0-f194.google.com) (209.85.210.194) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 03 Oct 2009 20:35:36 +0000 Received: by yxe32 with SMTP id 32so2257331yxe.5 for ; Sat, 03 Oct 2009 13:35:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=itIvu8TX9kmyxP7rxXG7B41Jix+Xz0rIV2bNRrGkSX0=; b=qZuSLxRUsKHluiJqVqZTqyuXbGahJMnnf9gXoD56eQHwmExkgZP+ApRjPgcMZvmtAl 67OanAzm5vXzzrfY4BKUI76eO9/PDVeHbO90M5OPpxoQ6SVqWZX70uNJDq88aoxcTNGB pUP4T20vt9bYIPywYs1ao/1wNcEJwKLZ8FEYc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=bvUuIDh20Ke5nxzIlg0wKJ0mxuuplizB5T/D9HbjXzwvq1uoCDDremYQTKfez4Cpta Gi2+rhBQlgnP936SQVFpgUSe2B2LWNPzXKCkS5Tm6TEZQdyp5lKm49cvxmyN8JPESakB VnNMd+1yrr5P1rQYD1Q0QvYUokXF00jpCGtHM= MIME-Version: 1.0 Received: by 10.101.5.22 with SMTP id h22mr4060120ani.186.1254602115695; Sat, 03 Oct 2009 13:35:15 -0700 (PDT) Date: Sat, 3 Oct 2009 13:35:15 -0700 Message-ID: <34fd060d0910031335x5a77f34cr2d71fb8501ee7051@mail.gmail.com> Subject: about realtime map-reduce From: Zheng Shao To: hbase-dev@hadoop.apache.org Content-Type: multipart/alternative; boundary=00504502d82470c35d04750dd138 X-Virus-Checked: Checked by ClamAV on apache.org --00504502d82470c35d04750dd138 Content-Type: text/plain; charset=ISO-8859-1 In the presentation at Hadoop World NYC, "real time map-reduce" was mentioned in the HBase presentation. I guess that means to run user scripts/functions in HBase region server process space (Just like BigTable can run user filters and sawzall) Is there any more details on that? It might be hard to support arbitrary map-reduce programs, so I guess there will be some restrictions? -- Yours, Zheng --00504502d82470c35d04750dd138--