Return-Path: X-Original-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B6BBFDC69 for ; Mon, 24 Sep 2012 15:13:29 +0000 (UTC) Received: (qmail 13605 invoked by uid 500); 24 Sep 2012 15:13:25 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 13497 invoked by uid 500); 24 Sep 2012 15:13:25 -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 13490 invoked by uid 99); 24 Sep 2012 15:13:25 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 24 Sep 2012 15:13:25 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [209.85.160.48] (HELO mail-pb0-f48.google.com) (209.85.160.48) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 24 Sep 2012 15:13:19 +0000 Received: by pbbrq13 with SMTP id rq13so15210163pbb.35 for ; Mon, 24 Sep 2012 08:12:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:x-gm-message-state; bh=MTpLdGI1jP0HfazpTX26UDCiVQ40pZfK4JDIojKTm6M=; b=Ye6kdQBF0P3jfRJ3jjUxzaOnP3bGWQGRZ1aWPtSN+hZcuvzHVIcSOfiSqYn3eeDzpH OMLiozvJPO6egtK/SKhsk4oAU15TNd8FfUMXX5fzyLxKXaeWMowCnBg7yQYsJU3RoauJ IbQWu2WtG/ibOPS64N8XQVINsZSmWExTZkMXa6j9q/PI3HBsR5C1uM+YPMtu//mqyzJu HFFvT9wn++yAb+GtoH9YR52ekrG2g1/LanAVUGvbm5AOEq+p8RtJYhcrnmBNU24fxAUh Gy4eHwOT+C6IeRD/EggX6Igeii3zUPLFLhkZAMBEu6SmyzvqqCv4OgnX3sM6ugnp5dk5 eJvA== MIME-Version: 1.0 Received: by 10.68.240.36 with SMTP id vx4mr37481241pbc.89.1348499579588; Mon, 24 Sep 2012 08:12:59 -0700 (PDT) Received: by 10.68.16.201 with HTTP; Mon, 24 Sep 2012 08:12:59 -0700 (PDT) In-Reply-To: References: Date: Mon, 24 Sep 2012 16:12:59 +0100 Message-ID: Subject: Re: Not able to place enough replicas in Reduce From: Steve Loughran To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=047d7b339c276bcf2f04ca7406c8 X-Gm-Message-State: ALoCoQlGvtqUu1E1KIcxvmXVS1C1UZm4a4+XQN2/fgREYX8DP+PqiMccb2YBgvXu2R4ngp5OjAXI X-Virus-Checked: Checked by ClamAV on apache.org --047d7b339c276bcf2f04ca7406c8 Content-Type: text/plain; charset=UTF-8 On 24 September 2012 15:47, Ted Reynolds wrote: > Jason, > > The line in the JobTracker log - "Could only be replicated to 0 nodes, > instead of 1" points to a problem with your data node. I generally means > that your DataNode is either down or not functioning correctly. What is > the output of the "jps" command? ("jps" is found in /bin). > > see also: http://wiki.apache.org/hadoop/CouldOnlyBeReplicatedTo -steve --047d7b339c276bcf2f04ca7406c8 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

On 24 September 2012 15:47, Ted Reynolds= <tedr@hortonworks.com> wrote:

Jason,

The line in the JobTracker log - "Could only= be replicated to 0 nodes, instead of 1" points to a problem with your= data node. =C2=A0I generally means that your DataNode is either down or no= t functioning correctly. =C2=A0What is the output of the "jps" co= mmand? =C2=A0("jps" is found in <JAVA_HOME>/bin).

-steve

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