Return-Path: X-Original-To: apmail-hadoop-common-user-archive@www.apache.org Delivered-To: apmail-hadoop-common-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 0D61710BC8 for ; Tue, 27 Jan 2015 20:21:56 +0000 (UTC) Received: (qmail 37553 invoked by uid 500); 27 Jan 2015 20:21:50 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 37456 invoked by uid 500); 27 Jan 2015 20:21:50 -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 37421 invoked by uid 99); 27 Jan 2015 20:21:49 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 27 Jan 2015 20:21:49 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [196.218.210.163] (HELO smtp.aossama.net) (196.218.210.163) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 27 Jan 2015 20:21:43 +0000 Received: from [192.168.1.148] (unknown [41.38.22.240]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: ahmed) by smtp.aossama.net (Postfix) with ESMTPSA id 30E953EA1 for ; Tue, 27 Jan 2015 22:20:46 +0200 (GMT-2) Message-ID: <54C7F31C.6060900@aossama.com> Date: Tue, 27 Jan 2015 22:20:44 +0200 From: Ahmed Ossama User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: user@hadoop.apache.org Subject: Re: NN questions References: <2114201792.13399935.1422303416254.JavaMail.zimbra@comcast.net> In-Reply-To: <2114201792.13399935.1422303416254.JavaMail.zimbra@comcast.net> Content-Type: multipart/alternative; boundary="------------020405040306090000040906" X-Virus-Checked: Checked by ClamAV on apache.org This is a multi-part message in MIME format. --------------020405040306090000040906 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Writes are done in parallel. Yes, dfs.namenode.shared.edits.dir support multiple directories. On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote: > If multiple directories are specified for dfs.namenode.name.dir and > dfs.namenode.edits.dir, are the writes to the different directories > done in parallel or serial? > > Does dfs.namenode.shared.edits.dir support multiple directories like > the properties above? > > Thanks, > Dave -- Regards, Ahmed Ossama --------------020405040306090000040906 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Writes are done in parallel.

Yes, dfs.namenode.shared.edits.dir support multiple directories.

On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote:

If multiple directories are specified for dfs.namenode.name.dir and dfs.namenode.edits.dir, are the writes to the different directories done in parallel or serial?

Does dfs.namenode.shared.edits.dir support multiple directories like the properties above?

Thanks,
Dave

-- 
Regards,
Ahmed Ossama

--------------020405040306090000040906--