Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-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 CA0E69511 for ; Tue, 17 Apr 2012 10:07:12 +0000 (UTC) Received: (qmail 39832 invoked by uid 500); 17 Apr 2012 10:07:10 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 39807 invoked by uid 500); 17 Apr 2012 10:07:10 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 39799 invoked by uid 99); 17 Apr 2012 10:07:10 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 17 Apr 2012 10:07:10 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HS_INDEX_PARAM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [208.113.200.5] (HELO homiemail-a91.g.dreamhost.com) (208.113.200.5) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 17 Apr 2012 10:07:02 +0000 Received: from homiemail-a91.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a91.g.dreamhost.com (Postfix) with ESMTP id 0FE0DAE069 for ; Tue, 17 Apr 2012 03:06:40 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=thelastpickle.com; h=from :mime-version:content-type:subject:date:in-reply-to:to :references:message-id; q=dns; s=thelastpickle.com; b=sY8z95ecij PKV//MPFkF28qxXMglO7fOSWIrhV9iu26hAFjDBVemvzDFAhnSYEyqfVBiZHJviw fA5y80Bcj7v5Lm3bAR9UmNH8Xn5CyZ0yx/3UErgklZwXgU7eGOxey1ZTJBRvSIQI nmdX5bDe2GOeOHHt2um8Q/2qFNAvZHRWY= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=thelastpickle.com; h=from :mime-version:content-type:subject:date:in-reply-to:to :references:message-id; s=thelastpickle.com; bh=ZbOU7ozA8lsQ8m9V 2sAk+VmtAhE=; b=I2j/pFs1GIF/1/XZ/2UKcOzN3LIczElDg0Xx1Hbf4s2a+DLv UA4IWoy2sA8ylLkceSMIkgE0r5Yn3pvf9WOoy42cHFoMUUQY+iSrtmoUKfA20yYA V+Bsj/USpzL2+BejaWussbsDy0varmAciJKO/rOAVhxipQZUUa3CtW3LHPQ= Received: from [172.16.1.3] (125-236-193-159.adsl.xtra.co.nz [125.236.193.159]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: aaron@thelastpickle.com) by homiemail-a91.g.dreamhost.com (Postfix) with ESMTPSA id 82C20AE05B for ; Tue, 17 Apr 2012 03:06:39 -0700 (PDT) From: aaron morton Mime-Version: 1.0 (Apple Message framework v1257) Content-Type: multipart/alternative; boundary="Apple-Mail=_8C0BA4F4-A214-41FE-AB1F-9E35075D7849" Subject: Re: Cassandra Network Protocols Date: Tue, 17 Apr 2012 22:06:37 +1200 In-Reply-To: To: user@cassandra.apache.org References: Message-Id: X-Mailer: Apple Mail (2.1257) --Apple-Mail=_8C0BA4F4-A214-41FE-AB1F-9E35075D7849 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hand rolled headers and binary serialisation over TCP.=20 See o.a.c.net.IncomingTcpConnection for the starting point for an = incoming connection.=20 Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 17/04/2012, at 9:49 AM, Tom Duffield (Mailing Lists) wrote: > When you submit a write request with a constancy of EACH_QUORUM, what = network protocol does Cassandra use to write the data to the other DCs?=20= >=20 > Similarly, what network protocol does Cassandra use when writing data = as part of replication?=20 >=20 > --=20 > Tom Duffield (Mailing Lists) > Sent with Sparrow >=20 --Apple-Mail=_8C0BA4F4-A214-41FE-AB1F-9E35075D7849 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Hand = rolled headers and binary serialisation over = TCP. 

See o.a.c.net.IncomingTcpConnection for = the starting point for an incoming =  connection. 

Cheers

http://www.thelastpickle.com

On 17/04/2012, at 9:49 AM, Tom Duffield (Mailing Lists) = wrote:

When you submit a write request with a = constancy of EACH_QUORUM, what network protocol does Cassandra use to = write the data to the other = DCs? 

Similarly, what network = protocol does Cassandra use when writing data as part of = replication? 

-- 
Tom = Duffield (Mailing Lists)
Sent with Sparrow


= --Apple-Mail=_8C0BA4F4-A214-41FE-AB1F-9E35075D7849--