Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 6F092200C47 for ; Thu, 30 Mar 2017 21:58:46 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 6D870160B7E; Thu, 30 Mar 2017 19:58:46 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id A09D9160B98 for ; Thu, 30 Mar 2017 21:58:45 +0200 (CEST) Received: (qmail 73217 invoked by uid 500); 30 Mar 2017 19:58:44 -0000 Mailing-List: contact issues-help@impala.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@impala.incubator.apache.org Delivered-To: mailing list issues@impala.incubator.apache.org Received: (qmail 73181 invoked by uid 99); 30 Mar 2017 19:58:44 -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; Thu, 30 Mar 2017 19:58:44 +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 53A9D1AA2A6 for ; Thu, 30 Mar 2017 19:58:44 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -99.202 X-Spam-Level: X-Spam-Status: No, score=-99.202 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id oDgRoaZ2u5hf for ; Thu, 30 Mar 2017 19:58:43 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 5EE7B5FC6C for ; Thu, 30 Mar 2017 19:58:43 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id C713CE0BE1 for ; Thu, 30 Mar 2017 19:58:42 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 22CE721DDE for ; Thu, 30 Mar 2017 19:58:42 +0000 (UTC) Date: Thu, 30 Mar 2017 19:58:42 +0000 (UTC) From: "Tim Armstrong (JIRA)" To: issues@impala.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (IMPALA-2982) Impalad Jvm : Zookeeper thread spinning in sun.nio.ch.EPollArrayWrapper.epollWait MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 30 Mar 2017 19:58:46 -0000 [ https://issues.apache.org/jira/browse/IMPALA-2982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tim Armstrong resolved IMPALA-2982. ----------------------------------- Resolution: Cannot Reproduce I don't believe we've seen this since we added the mitigation. > Impalad Jvm : Zookeeper thread spinning in sun.nio.ch.EPollArrayWrapper.epollWait > --------------------------------------------------------------------------------- > > Key: IMPALA-2982 > URL: https://issues.apache.org/jira/browse/IMPALA-2982 > Project: IMPALA > Issue Type: Bug > Components: Frontend > Affects Versions: Impala 2.5.0 > Reporter: Mostafa Mokhtar > Assignee: Tim Armstrong > Priority: Minor > Attachments: impalad_jstacks.txt > > > There appears to be a JVM thread runnning as part of the impalad process spinning, jstack shows that it is the ZooKeeper thread > {code} > "main-SendThread(eXXX.XXXX.XXXXXX.com:2181)" daemon prio=10 tid=0x0000000007afd800 nid=0xdd5f runnable [0x00007fca7aba2000] > java.lang.Thread.State: RUNNABLE > at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) > at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) > at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79) > at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) > - locked <0x0000000426290c20> (a sun.nio.ch.Util$2) > - locked <0x0000000426290c10> (a java.util.Collections$UnmodifiableSet) > - locked <0x0000000426290988> (a sun.nio.ch.EPollSelectorImpl) > at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) > at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:338) > at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) > {code} > Queries appear to run fine though while the spinning is happening. -- This message was sent by Atlassian JIRA (v6.3.15#6346)