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 2949411AE6 for ; Thu, 5 Jun 2014 07:57:07 +0000 (UTC) Received: (qmail 73665 invoked by uid 500); 5 Jun 2014 07:57:01 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 73602 invoked by uid 500); 5 Jun 2014 07:57:01 -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 73591 invoked by uid 500); 5 Jun 2014 07:57:01 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 73588 invoked by uid 99); 5 Jun 2014 07:57:01 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 05 Jun 2014 07:57:01 +0000 Date: Thu, 5 Jun 2014 07:57:01 +0000 (UTC) From: "Bennie Schut (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HIVE-1539) Concurrent metastore threading problem MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-1539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Bennie Schut resolved HIVE-1539. -------------------------------- Resolution: Fixed Release Note: We switched to a datanucleus version >= 2.2 a long time ago so this is fixed. > Concurrent metastore threading problem > --------------------------------------- > > Key: HIVE-1539 > URL: https://issues.apache.org/jira/browse/HIVE-1539 > Project: Hive > Issue Type: Bug > Components: Metastore > Affects Versions: 0.7.0 > Reporter: Bennie Schut > Assignee: Bennie Schut > Attachments: ClassLoaderResolver.patch, HIVE-1539-1.patch, HIVE-1539.patch, thread_dump_hanging.txt > > > When running hive as a service and running a high number of queries concurrently I end up with multiple threads running at 100% cpu without any progress. > Looking at these threads I notice this thread(484e): > at org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:598) > But on a different thread(63a2): > at org.apache.hadoop.hive.metastore.model.MStorageDescriptor.jdoReplaceField(MStorageDescriptor.java) -- This message was sent by Atlassian JIRA (v6.2#6252)