Return-Path: X-Original-To: apmail-couchdb-user-archive@www.apache.org Delivered-To: apmail-couchdb-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 B58AE7E50 for ; Mon, 12 Dec 2011 01:42:26 +0000 (UTC) Received: (qmail 56629 invoked by uid 500); 12 Dec 2011 01:42:25 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 56569 invoked by uid 500); 12 Dec 2011 01:42:24 -0000 Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@couchdb.apache.org Delivered-To: mailing list user@couchdb.apache.org Received: (qmail 56561 invoked by uid 99); 12 Dec 2011 01:42:24 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 12 Dec 2011 01:42:24 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jackchrispoo@gmail.com designates 209.85.216.180 as permitted sender) Received: from [209.85.216.180] (HELO mail-qy0-f180.google.com) (209.85.216.180) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 12 Dec 2011 01:42:16 +0000 Received: by qcse1 with SMTP id e1so4040960qcs.11 for ; Sun, 11 Dec 2011 17:41:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=SRWUyND2xaj1I+MmCcOUBnQXdnWWqzZFiLDR5DqWXs8=; b=YIlUfnTCMac+7R/JUhne54/3SxFr5qWQC9z5keVTnuI8G0H2FwsZNH6LcGiA0vXT9t Kn7ixc1fkh0DnB/cbSGqhIhh6r8iNSA5MmR5K1EnuJwkToU7HI5iYG7b8VWOh+k7q41F 8ZJYftzgBndpoOG5PKAL9CJof3qkE3FbyXKac= MIME-Version: 1.0 Received: by 10.229.40.212 with SMTP id l20mr3251719qce.91.1323654115570; Sun, 11 Dec 2011 17:41:55 -0800 (PST) Received: by 10.229.235.3 with HTTP; Sun, 11 Dec 2011 17:41:55 -0800 (PST) Date: Sun, 11 Dec 2011 20:41:55 -0500 Message-ID: Subject: Question on what is CouchDB's strength From: jack chrispoo To: user@couchdb.apache.org Content-Type: multipart/alternative; boundary=001636833d9c5d351104b3db3dc9 X-Virus-Checked: Checked by ClamAV on apache.org --001636833d9c5d351104b3db3dc9 Content-Type: text/plain; charset=ISO-8859-1 Hi all, I am new to CouchDB. I and my friends have been evaluating several datastores including Cassandra, HBase, MongoDB, CouchDB in terms of update, read, insert, scan throughput and latency. In our tests CouchDB performs worst in all tests. I once read about some saying that because CouchDB is written in Erlang, throughput and lantency is not CouchDB's strength. So can someone tell me some advantages of CouchDB compared to other datastores? I did look into views, but it seems that other datastores have similar funtionalities - MongoDB can also execute javascript to generate result, HBase has filter. So what exactly is CouchDB's strength? I'll be grateful to any comments, Thanks, jack --001636833d9c5d351104b3db3dc9--