Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 2C14D10812 for ; Tue, 3 Mar 2015 19:39:29 +0000 (UTC) Received: (qmail 71242 invoked by uid 500); 3 Mar 2015 19:39:28 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 71139 invoked by uid 500); 3 Mar 2015 19:39:28 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 71121 invoked by uid 99); 3 Mar 2015 19:39:28 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 03 Mar 2015 19:39:28 +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 (athena.apache.org: domain of andrew.wang@cloudera.com designates 209.85.223.181 as permitted sender) Received: from [209.85.223.181] (HELO mail-ie0-f181.google.com) (209.85.223.181) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 03 Mar 2015 19:39:22 +0000 Received: by iecar1 with SMTP id ar1so61407670iec.11 for ; Tue, 03 Mar 2015 11:39:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-type; bh=HdUvVPSBDzDXbeNzeWXX9zOdVVYGTNxPZcCiUht/E4k=; b=MURdmDOnahIVQcLW+u01q5ZD3x70/6NRjcAh3/1eXXGIGvI1z4a4zOyqENu+EVydse u7YlzHOo5Fn9iJqWSbPqwxzjrg1hoZZ5b+0ETT9AKNYhmE1DPVNWsh8q3OlJ1phxjvLn V/tz5Egb3RoGIejwjSxJYGCRWxcq7lZ1pZq5JcyW1OEQ+qeQb4U/CvMf5A71CxoiVMXF +GlhpQgpKAr5pEZFwgoU7r6lkJ88UwZ9wrAYre2HBEeIIQdbU8i7S/pbww8e/ZBcehvy uLmQOTc4LaO5tpUD84d+wP0US0oo/eP6BUCaDwF3PKQ0iyFqX+u1Ltt3cxzKcVh86rf5 oOrQ== X-Gm-Message-State: ALoCoQny6VxoTLD4uB0/lmRpXza72Q37oMxItQqUlPXfYgy0ZnzaoyUDA2MjhtH81h7/RyWsaYRQ X-Received: by 10.50.107.7 with SMTP id gy7mr4393660igb.49.1425411542022; Tue, 03 Mar 2015 11:39:02 -0800 (PST) MIME-Version: 1.0 Received: by 10.107.58.6 with HTTP; Tue, 3 Mar 2015 11:38:41 -0800 (PST) In-Reply-To: References: From: Andrew Wang Date: Tue, 3 Mar 2015 11:38:41 -0800 Message-ID: Subject: Re: Dose hdfs support the configuration that different blocks can have different number of replcias? To: "hdfs-dev@hadoop.apache.org" Content-Type: multipart/alternative; boundary=e89a8ffbae419f20ce0510677cfa X-Virus-Checked: Checked by ClamAV on apache.org --e89a8ffbae419f20ce0510677cfa Content-Type: text/plain; charset=UTF-8 Hi Lipeng, Right now that is unsupported, replication is set on a per-file basis, not per-block. Andrew On Tue, Mar 3, 2015 at 11:23 AM, Lipeng Wan wrote: > Hi devs, > > By default, hdfs creates same number of replicas for each block. Is it > possible for us to create more replicas for some of the blocks? > Thanks! > > L. W. > --e89a8ffbae419f20ce0510677cfa--