Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8D7E0105B6 for ; Fri, 6 Sep 2013 02:41:58 +0000 (UTC) Received: (qmail 77282 invoked by uid 500); 6 Sep 2013 02:41:57 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 77259 invoked by uid 500); 6 Sep 2013 02:41:56 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 77209 invoked by uid 99); 6 Sep 2013 02:41:53 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 06 Sep 2013 02:41:53 +0000 Date: Fri, 6 Sep 2013 02:41:53 +0000 (UTC) From: "Kirubakaran Pakkirisamy (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-9410) Concurrent coprocessor endpoint executions slow down exponentially 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/HBASE-9410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759789#comment-13759789 ] Kirubakaran Pakkirisamy commented on HBASE-9410: ------------------------------------------------ Andrew et al, were you able to recreate the problem with the attached test case ? It just needs a table with as many as regions as (atleast) the total number of cores in the cluster. It could be any table and I dont think the region size matters. Seems like some unnecessary/aggressive locking overhead. > Concurrent coprocessor endpoint executions slow down exponentially > ------------------------------------------------------------------ > > Key: HBASE-9410 > URL: https://issues.apache.org/jira/browse/HBASE-9410 > Project: HBase > Issue Type: Bug > Components: Coprocessors > Affects Versions: 0.94.11 > Environment: Amazon ec2 > Reporter: Kirubakaran Pakkirisamy > Attachments: jstack1.log, jstack2.log, jstack3.log, jstack.log, SearchEndpoint.java, Search.java, SearchProtocol.java > > > Multiple concurrent executions of coprocessor endpoints slow down drastically. It is compounded further when there are more Htable connection setups happening. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira