Return-Path: X-Original-To: apmail-zookeeper-user-archive@www.apache.org Delivered-To: apmail-zookeeper-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 F0FA410A19 for ; Wed, 5 Feb 2014 00:17:25 +0000 (UTC) Received: (qmail 33235 invoked by uid 500); 5 Feb 2014 00:17:24 -0000 Delivered-To: apmail-zookeeper-user-archive@zookeeper.apache.org Received: (qmail 33178 invoked by uid 500); 5 Feb 2014 00:17:23 -0000 Mailing-List: contact user-help@zookeeper.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@zookeeper.apache.org Delivered-To: mailing list user@zookeeper.apache.org Received: (qmail 33170 invoked by uid 99); 5 Feb 2014 00:17:23 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 05 Feb 2014 00:17:23 +0000 X-ASF-Spam-Status: No, hits=2.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_SOFTFAIL X-Spam-Check-By: apache.org Received-SPF: softfail (athena.apache.org: transitioning domain of deepak.jagtap@maxta.com does not designate 209.85.219.49 as permitted sender) Received: from [209.85.219.49] (HELO mail-oa0-f49.google.com) (209.85.219.49) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 05 Feb 2014 00:17:18 +0000 Received: by mail-oa0-f49.google.com with SMTP id i7so10777659oag.36 for ; Tue, 04 Feb 2014 16:16:57 -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:date:message-id:subject:from:to :content-type; bh=scNCvnnP0WK5uOifxrskcJtdbrozIeOImoRGclTydsE=; b=acsME4zHtDeOQiUiWRpRuyGAVRAask0QgQGjjnCXrm+cmAVH89AEoyxt2PAQMP3jC+ rpgBPsmy9uPAGcmdu08exEGKC3hdwdh04d2F0g6FB75DLY+pYOYlIYFGnUcKJWaWaKJA LShCJ3WTOgHqRviVPoLIf2zXDCS5w6RhutZoSib3SSeIWK4SdqBuOajLMxPZ6/0Sqihj 7PV1WcQCjujnSHnOtDwXTT7E2PBq6PlhJFn38F8hSkeWKecRDU1bJhk1r2lEJFHOJXUR /u8VQ/8zYcWnjYoEbuvMdpTnFtAchS71y827e6FdSCfpW+BZdUq+y3x81n/vINkpbQG3 Ocww== X-Gm-Message-State: ALoCoQmERQInpeVMOUHCWDq9oy6s34/mRaEUjO0UhZio9VBvUvvlW9jWXptD7JHOJsGfnOuqtaZ0 MIME-Version: 1.0 X-Received: by 10.60.50.202 with SMTP id e10mr14377662oeo.39.1391559417068; Tue, 04 Feb 2014 16:16:57 -0800 (PST) Received: by 10.60.46.5 with HTTP; Tue, 4 Feb 2014 16:16:56 -0800 (PST) Date: Tue, 4 Feb 2014 16:16:56 -0800 Message-ID: Subject: fsync latency causing zookeeper server to fall apart From: Deepak Jagtap To: user@zookeeper.apache.org Content-Type: multipart/alternative; boundary=001a11c30946bd17f504f19dac9e X-Virus-Checked: Checked by ClamAV on apache.org --001a11c30946bd17f504f19dac9e Content-Type: text/plain; charset=ISO-8859-1 Hi All, I have zookeeper server quorum deployed on virtual machines. I am noticing fsync latency warnings (more than 10 secs) in the log in some cases, this in turn causes that zookeeper server to fall apart from the cluster. Any idea how should I root cause this? Also can this be mitigated by increasing some timeout value. Thanks & Regards, Deepak --001a11c30946bd17f504f19dac9e--