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 D3635F7FD for ; Tue, 2 Apr 2013 07:01:22 +0000 (UTC) Received: (qmail 97082 invoked by uid 500); 2 Apr 2013 07:01:22 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 97004 invoked by uid 500); 2 Apr 2013 07:01:22 -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 96966 invoked by uid 99); 2 Apr 2013 07:01:21 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Apr 2013 07:01:21 +0000 Date: Tue, 2 Apr 2013 07:01:21 +0000 (UTC) From: "Hadoop QA (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-6651) Improve thread safety of HTablePool 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-6651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619577#comment-13619577 ] Hadoop QA commented on HBASE-6651: ---------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12576494/HBASE-6651-V13.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 28 new or modified tests. {color:green}+1 hadoop2.0{color}. The patch compiles against the hadoop 2.0 profile. {color:red}-1 javadoc{color}. The javadoc tool appears to have generated 10 warning messages. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 lineLengths{color}. The patch introduces lines longer than 100 {color:green}+1 site{color}. The mvn site goal succeeds with this patch. {color:red}-1 core tests{color}. The patch failed these unit tests: org.apache.hadoop.hbase.client.TestFromClientSide org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/5090//console This message is automatically generated. > Improve thread safety of HTablePool > ----------------------------------- > > Key: HBASE-6651 > URL: https://issues.apache.org/jira/browse/HBASE-6651 > Project: HBase > Issue Type: Bug > Components: Client > Affects Versions: 0.94.1 > Reporter: Hiroshi Ikeda > Assignee: Hiroshi Ikeda > Fix For: 0.95.0 > > Attachments: HBASE-6651.patch, HBASE-6651-V10.patch, HBASE-6651-V11.patch, HBASE-6651-V12.patch, HBASE-6651-V13.patch, HBASE-6651-V2.patch, HBASE-6651-V3.patch, HBASE-6651-V4.patch, HBASE-6651-V5.patch, HBASE-6651-V6.patch, HBASE-6651-V7.patch, HBASE-6651-V8.patch, HBASE-6651-V9.patch, sample.zip, sample.zip, sharedmap_for_hbaseclient.zip > > > There are some operations in HTablePool accessing PoolMap in multiple places without any explicit synchronization. > For example HTablePool.closeTablePool() calls PoolMap.values(), and calls PoolMap.remove(). If other threads add new instances to the pool in the middle of the calls, the newly added instances might be dropped. (HTablePool.closeTablePool() also has another problem that calling it by multiple threads causes accessing HTable by multiple threads.) > Moreover, PoolMap is not thread safe for the same reason. > For example PoolMap.put() calles ConcurrentMap.get() and calles ConcurrentMap.put(). If other threads add a new instance to the concurent map in the middle of the calls, the new instance might be dropped. > And also implementations of Pool have the same problems. -- 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