Return-Path: 
 <issues-return-9958-apmail-hbase-issues-archive=hbase.apache.org@hbase.apache.org>
Delivered-To: apmail-hbase-issues-archive@www.apache.org
Received: (qmail 54644 invoked from network); 11 Mar 2011 20:35:23 -0000
Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3)
  by minotaur.apache.org with SMTP; 11 Mar 2011 20:35:23 -0000
Received: (qmail 60269 invoked by uid 500); 11 Mar 2011 20:35:23 -0000
Delivered-To: apmail-hbase-issues-archive@hbase.apache.org
Received: (qmail 60241 invoked by uid 500); 11 Mar 2011 20:35:23 -0000
Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:issues-help@hbase.apache.org>
List-Unsubscribe: <mailto:issues-unsubscribe@hbase.apache.org>
List-Post: <mailto:issues@hbase.apache.org>
List-Id: <issues.hbase.apache.org>
Delivered-To: mailing list issues@hbase.apache.org
Received: (qmail 60233 invoked by uid 99); 11 Mar 2011 20:35:23 -0000
Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Mar 2011 20:35:23 +0000
X-ASF-Spam-Status: No, hits=-2000.0 required=5.0
	tests=ALL_TRUSTED,T_RP_MATCHES_RCVD
X-Spam-Check-By: apache.org
Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Mar 2011 20:35:21 +0000
Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116])
	by hel.zones.apache.org (Postfix) with ESMTP id 832673A493E
	for <issues@hbase.apache.org>; Fri, 11 Mar 2011 20:34:59 +0000 (UTC)
Date: Fri, 11 Mar 2011 20:34:59 +0000 (UTC)
From: "Andrew Purtell (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: 
 <1053435506.14288.1299875699534.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <1492489774.2864.1298927317616.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] Updated: (HBASE-3581) hbase rpc should send size of response
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394
X-Virus-Checked: Checked by ClamAV on apache.org


     [ https://issues.apache.org/jira/browse/HBASE-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell updated HBASE-3581:
----------------------------------

    Status: Open  (was: Patch Available)

Cancelling patch. Seems there is more work to do?

> hbase rpc should send size of response
> --------------------------------------
>
>                 Key: HBASE-3581
>                 URL: https://issues.apache.org/jira/browse/HBASE-3581
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: ryan rawson
>            Assignee: ryan rawson
>             Fix For: 0.92.0
>
>         Attachments: HBASE-rpc-response.txt
>
>
> The RPC reply from Server->Client does not include the size of the payload, it is framed like so:
> <i32> callId
> <byte> errorFlag
> <byte[]> data
> The data segment would contain enough info about how big the response is so that it could be decoded by a writable reader.
> This makes it difficult to write buffering clients, who might read the entire 'data' then pass it to a decoder. While less memory efficient, if you want to easily write block read clients (eg: nio) it would be necessary to send the size along so that the client could snarf into a local buf.
> The new proposal is:
> <i32> callId
> <i32> size
> <byte> errorFlag
> <byte[]> data
> the size being sizeof(data) + sizeof(errorFlag).

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira