Return-Path: X-Original-To: apmail-accumulo-user-archive@www.apache.org Delivered-To: apmail-accumulo-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 F2CAF183EE for ; Tue, 12 May 2015 17:39:59 +0000 (UTC) Received: (qmail 46775 invoked by uid 500); 12 May 2015 17:39:59 -0000 Delivered-To: apmail-accumulo-user-archive@accumulo.apache.org Received: (qmail 46721 invoked by uid 500); 12 May 2015 17:39:59 -0000 Mailing-List: contact user-help@accumulo.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@accumulo.apache.org Delivered-To: mailing list user@accumulo.apache.org Received: (qmail 46710 invoked by uid 99); 12 May 2015 17:39:59 -0000 Received: from Unknown (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 12 May 2015 17:39:59 +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 2FE0FC1241 for ; Tue, 12 May 2015 17:39:59 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 3.148 X-Spam-Level: *** X-Spam-Status: No, score=3.148 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_H2=-0.001, 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-us-east.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id fdaZjK82hu2V for ; Tue, 12 May 2015 17:39:58 +0000 (UTC) Received: from mail-ie0-f179.google.com (mail-ie0-f179.google.com [209.85.223.179]) by mx1-us-east.apache.org (ASF Mail Server at mx1-us-east.apache.org) with ESMTPS id 5AEE7474C1 for ; Tue, 12 May 2015 17:39:58 +0000 (UTC) Received: by iebpz10 with SMTP id pz10so8356280ieb.2 for ; Tue, 12 May 2015 10:39:57 -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=+RaAev/8b5OQAtrk11Zuu3k0Cm/uCFalOlYlK0UmslY=; b=woXevrjYcxoO9joErKlq8OVtKOhKUj+EUJ0csDs9Vug4PimkIrL1/yUuEYc8hCGkxW 4qaUg/1akMuOwMswt0p36MTp313OH2BSzRNjG+l9LJWY8rA2tSpcEUZEzx01bG/kJh56 Byx4F1A8+hr9tE1lahTZzOaJeK8nmJoxvAHRHlAnVsRsu7o3yJqKkB84OwtfPKP9TrGP hGvTzqxFTJu4FCR9sVHC3cgLUZA6HE4uWPQ3F8R5vyTgD3pTuHjjUc9j+Wt5afb6vu5O RB/xYHuRdLtb+YhxSvOXEUw3htO5PxDkpT0azVZCrHU7wObB/FRDLiIQGYjcCL1ukE89 JuYQ== MIME-Version: 1.0 X-Received: by 10.42.88.197 with SMTP id d5mr4411048icm.44.1431452397788; Tue, 12 May 2015 10:39:57 -0700 (PDT) Received: by 10.36.127.69 with HTTP; Tue, 12 May 2015 10:39:57 -0700 (PDT) Date: Tue, 12 May 2015 23:09:57 +0530 Message-ID: Subject: BatchScanner taking too much time to scan rows From: vaibhav thapliyal To: user@accumulo.apache.org Content-Type: multipart/alternative; boundary=90e6ba3fd281aee2fd0515e5fbdd --90e6ba3fd281aee2fd0515e5fbdd Content-Type: text/plain; charset=UTF-8 Hi, I am using BatchScanner to scan rows from a accumulo table. The table has around 187m entries and I am using a 3 node cluster which has accumulo 1.6.1. I have passed 10000 ids which are stored as row id in my table as a list in the setRanges() method. This whole process takes around 50 secs(from adding the ids in the list to scanning the whole table using the BatchScanner). I tried switching on bloom filters but that didn't work. Also if anyone could briefly explain how a BatchScanner works, how it does parallel scanning it would help me understand what I am doing better. Thanks Vaibhav --90e6ba3fd281aee2fd0515e5fbdd Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,

I am using BatchScanner to scan row= s from a accumulo table. The table has around 187m entries and I am using a= 3 node cluster which has accumulo 1.6.1.

I have p= assed 10000 ids which are stored as row id in my table as a list in the set= Ranges() method.

This whole process takes around 5= 0 secs(from adding the ids in the list to scanning the whole table using th= e BatchScanner).

I tried switching on bloom filter= s but that didn't work.=C2=A0

Also if anyone c= ould briefly explain how a BatchScanner works, how it does parallel scannin= g it would help me understand what I am doing better.

<= div>Thanks
Vaibhav =C2=A0 =C2=A0


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