Return-Path: X-Original-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D6AFC11EBD for ; Wed, 25 Jun 2014 13:08:06 +0000 (UTC) Received: (qmail 52769 invoked by uid 500); 25 Jun 2014 13:08:01 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 52640 invoked by uid 500); 25 Jun 2014 13:08:01 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 52630 invoked by uid 99); 25 Jun 2014 13:08:00 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 25 Jun 2014 13:08:00 +0000 X-ASF-Spam-Status: No, hits=2.9 required=5.0 tests=HTML_MESSAGE,MIME_QP_LONG_LINE,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [79.99.40.130] (HELO auth-smtp-01.streamline.net) (79.99.40.130) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 25 Jun 2014 13:07:54 +0000 Received: by auth-smtp-01.streamline.net (Postfix, from userid 500) id 9803116C8183; Wed, 25 Jun 2014 14:07:20 +0100 (BST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on auth-smtp-01.streamline.net Received: from [192.168.0.4] (unknown [176.252.131.203]) (Authenticated sender: studio@chrismackenziephotography.co.uk) by auth-smtp-01.streamline.net (Postfix) with ESMTP id 534A516C8183 for ; Wed, 25 Jun 2014 14:07:16 +0100 (BST) User-Agent: Microsoft-MacOutlook/14.4.2.140509 Date: Wed, 25 Jun 2014 14:07:14 +0100 Subject: Splitting map and reduce From: Chris MacKenzie To: Message-ID: Thread-Topic: Splitting map and reduce Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3486550036_162531" X-Virus-Checked: Checked by ClamAV on apache.org > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3486550036_162531 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Hi, This is my first mail to this user group. I hope that the email is well formed and enables me to learn a great deal about Hadoop. I have to carry out sequence alignment using Hadoop with the aid of a critical subsequence. A potential critical subsequence is derived from the longest unique subsequence in a sequence. A valid critical subsequence must exist in one or more sequences. I have run a concordance with a line splitter and have able to get "Map input records=3D10=B2 Which leads me to believe I can assess each sequence independently. I was hoping to get 10 reduce outputs but I only got one. Is there a way to split the reduce output in the same way that I can split the map input. Thanks in advance,=20 Regards, Chris MacKenzie --B_3486550036_162531 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable

Hi,

This is my first mail to this user group. I hope that the em= ail is well formed and enables me to learn a great deal about Hadoop.

<= div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-size:= 14px;">

I have to carry out sequence alignment using Hado= op with the aid of a critical subsequence. A potential critical subsequence = is derived from the longest unique subsequence in a sequence. A valid critic= al subsequence must exist in one or more sequences.

I have run a concordance with a line sp= litter and have able to get "Map input records=3D10” Which leads me to believe I can assess each sequence i= ndependently.

I was hoping to get 10 re= duce outputs but I only got one. Is there a way to split the reduce out= put in the same way that I can split the map input.

Thanks in advance,

Chris MacKenzie

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