From dev-return-415-archive-asf-public=cust-asf.ponee.io@heron.incubator.apache.org Wed Mar 21 00:40:30 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id DD74A18064A for ; Wed, 21 Mar 2018 00:40:29 +0100 (CET) Received: (qmail 69640 invoked by uid 500); 20 Mar 2018 23:40:28 -0000 Mailing-List: contact dev-help@heron.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@heron.incubator.apache.org Delivered-To: mailing list dev@heron.incubator.apache.org Received: (qmail 69624 invoked by uid 99); 20 Mar 2018 23:40:28 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 20 Mar 2018 23:40:28 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id D556E1A0503 for ; Tue, 20 Mar 2018 23:40:27 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.898 X-Spam-Level: * X-Spam-Status: No, score=1.898 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd2-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id by0IA0xjOnuU for ; Tue, 20 Mar 2018 23:40:26 +0000 (UTC) Received: from mail-io0-f176.google.com (mail-io0-f176.google.com [209.85.223.176]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTPS id 0F8A85F2F0 for ; Tue, 20 Mar 2018 23:40:26 +0000 (UTC) Received: by mail-io0-f176.google.com with SMTP id l12so4457732ioc.10 for ; Tue, 20 Mar 2018 16:40:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=MuC1y9kfGiohm7pZC3d5ARTfEoDc1YQXlJG6EWR5I58=; b=EebJ+PsEr/jLa4kvY3MBo4CwfKfCxccURBLhXnPhOCBmczK39EFlEM3kli93d8yneP iBMvrCNdvS+J8cCyG/xdCHeruxhEPCsA6a5kiB6MN/lDSCPLQspVThLOA0OXXxS5D19A TjMP7dPnEf8TLtWk1PxVyZfp9lVxtvVQRqbZZCidV0F4SGLW1vwkoK8P58R1GvWBqNQs 5LVm8OSNTqKjwj6/Cob7dIl5PbC07SBVXFB/1Cs23JEidvsk5MIuMpN+VWlZyYi8Ambt 2AnSwA4HhotOfqDo3eMpqHSwh6c8WcP/9Xaw5Ksy/EKvqicn2VUJ9gv5VwxpYJ6amwdZ qfNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=MuC1y9kfGiohm7pZC3d5ARTfEoDc1YQXlJG6EWR5I58=; b=re/gvwDOoVDzlMpHbUky6SoAzUmcOfsCqAggViKBYgXW+B5bwnz/bnRkxxhzSJ4sXs x+xnLJGx0dMk4iorZHMdKNdJ7UJcRcNAiLi3QG0Ty9QyNRCvnFMk6XEyC7eHgvandpuj DpU24rtiRDdeGTksldOurO3ZhK83EFzzzeEpTTqTLixfKjxXdoKCphsu3VKRZRWmKfYD kY9jjp8zPMRPgbSWA/JAkQWsn/sQgVz7AZICGoyY0SfD2d0fln1kjlMJIc4eaqnXOOBv WUUeJmfvsCezwugN0nRK7ZwAc0N1IbMvNAqJLU49o7770N9Em18JS1jr/vWnUnbrlPW5 j3Hg== X-Gm-Message-State: AElRT7FE+KXZcfXIlMN5lvXwh5cRizkqxAK4KLq0nMOtL1ViWsbtUHEy ETHACi8zvagpGKzCGotKKxFrt9ttgJT+Qxd8ykO8ng== X-Google-Smtp-Source: AG47ELtYeK+pa2C4VRyHtZ3zheBSid4rXHK4rtMcYFmnwOKEgNWkAU8qmrxJGSlsFnG6fCyYtZeC9w9WO9dnpmrPFRA= X-Received: by 10.107.162.84 with SMTP id l81mr18155134ioe.2.1521589224785; Tue, 20 Mar 2018 16:40:24 -0700 (PDT) MIME-Version: 1.0 Received: by 10.2.12.154 with HTTP; Tue, 20 Mar 2018 16:40:24 -0700 (PDT) In-Reply-To: References: From: Ning Wang Date: Tue, 20 Mar 2018 16:40:24 -0700 Message-ID: Subject: Re: Fault tolerance To: dev@heron.incubator.apache.org Content-Type: multipart/alternative; boundary="001a11402f863ccd390567e09922" --001a11402f863ccd390567e09922 Content-Type: text/plain; charset="UTF-8" Two features I can think of: Dhalion https://blog.acolyer.org/2017/06/30/dhalion-self-regulating-stream-processing-in-heron/ Backpressure Streammanager is responsible for all data transactions and it monitors the data consumption. If a process runs slow and incoming data buffer is full, it triggers backpressure to stop new data until the data in pipeline is consumed. On Tue, Mar 20, 2018 at 10:26 AM, Thuvarakan Tharmarajasingam < thuva4.dev@gmail.com> wrote: > Hello, > I am currently working on a distributed fault tolerance system for big data > toolkit. Could you please give me an overview of how Heron achieved the > fault tolerance? > --001a11402f863ccd390567e09922--