Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-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 B616ACC0A for ; Thu, 4 Jul 2013 09:01:26 +0000 (UTC) Received: (qmail 54337 invoked by uid 500); 4 Jul 2013 09:01:24 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 54283 invoked by uid 500); 4 Jul 2013 09:01:24 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 54275 invoked by uid 99); 4 Jul 2013 09:01:24 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 04 Jul 2013 09:01:23 +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 viral.bajaria@gmail.com designates 209.85.219.41 as permitted sender) Received: from [209.85.219.41] (HELO mail-oa0-f41.google.com) (209.85.219.41) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 04 Jul 2013 09:01:18 +0000 Received: by mail-oa0-f41.google.com with SMTP id n10so1623934oag.14 for ; Thu, 04 Jul 2013 02:00:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=FIiv1hjOY+n04+nkFGo4nu4DJzz9vPkI8hegHPxxFNw=; b=xAsfe5ECMJQxdGfC+k8Diw1YnbHQhKI1iYHFWvhtcFT1qs/sI6kuB2bt8bkUPOt5db DMG1Vptd5gCIW272JvGKxEZBEv54A5lWLQuVe7yJIBLyLJr7QBKcztZ1pfPKJMrmuQ5U Qk2mliC0KldWVckmo8+6j0yGZxOvRXS35oKloUG+v140qQodx71mOSkIlpoHYoVi0Tey Vzkcw+CJVqtJuDVaEECxvldwcxN68IgKspQfoAUPANgnk+iFWoPEfHo3jKYDFI/qLsLt x1o++bKzQGNQceGgql+lQNaunMvx9si9LlRllsV1+Iiwr31tZKK9ouQka7cZ14RtZTyk EdcA== MIME-Version: 1.0 X-Received: by 10.60.34.231 with SMTP id c7mr4920888oej.52.1372928458025; Thu, 04 Jul 2013 02:00:58 -0700 (PDT) Received: by 10.182.112.163 with HTTP; Thu, 4 Jul 2013 02:00:57 -0700 (PDT) In-Reply-To: References: Date: Thu, 4 Jul 2013 02:00:57 -0700 Message-ID: Subject: Re: question about clienttrace logs in hdfs and shortcircuit read From: Viral Bajaria To: "user@hbase.apache.org" Content-Type: multipart/alternative; boundary=089e01294b0c0aeea904e0abd15c X-Virus-Checked: Checked by ClamAV on apache.org --089e01294b0c0aeea904e0abd15c Content-Type: text/plain; charset=ISO-8859-1 Currently datanode shows a lot of clienttrace logs for DFSClient. I did a quick command line check to see how many clienttrace do I get per active RegionServer and it seems the local RegionServer had very few (< 1%). Given that datanode logs are too noisy with clienttrace, I was hoping to find the metrics in an easier way. But maybe I will hunt the logs now. Any pointers on what type of log to look for ? Thanks, Viral On Thu, Jul 4, 2013 at 1:57 AM, Azuryy Yu wrote: > if SCR take effect, you can see releated logs in the datanode log. --089e01294b0c0aeea904e0abd15c--