Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 668B61750E for ; Sat, 28 Mar 2015 05:00:54 +0000 (UTC) Received: (qmail 58092 invoked by uid 500); 28 Mar 2015 05:00:54 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 58013 invoked by uid 500); 28 Mar 2015 05:00:53 -0000 Mailing-List: contact dev-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list dev@hive.apache.org Received: (qmail 58002 invoked by uid 99); 28 Mar 2015 05:00:53 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 28 Mar 2015 05:00:53 +0000 Date: Sat, 28 Mar 2015 05:00:53 +0000 (UTC) From: "Gopal V (JIRA)" To: dev@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HIVE-10132) LLAP: Tez heartbeats are delayed by ~500+ ms due to Hadoop IPC client MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Gopal V created HIVE-10132: ------------------------------ Summary: LLAP: Tez heartbeats are delayed by ~500+ ms due to Hadoop IPC client Key: HIVE-10132 URL: https://issues.apache.org/jira/browse/HIVE-10132 Project: Hive Issue Type: Sub-task Reporter: Gopal V HADOOP-11772 has a clearer bug report of the core issue inside hadoop-common. Due to the delayed heartbeats reaching the AM, the reducers are losing up-to a couple of seconds for a 60ms (x10 parallel) mapper + 300ms reducer instead of finishing the query in under a second. -- This message was sent by Atlassian JIRA (v6.3.4#6332)