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 6C07A10655 for ; Tue, 5 Nov 2013 18:25:20 +0000 (UTC) Received: (qmail 10091 invoked by uid 500); 5 Nov 2013 18:25:19 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 9441 invoked by uid 500); 5 Nov 2013 18:25:18 -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 9405 invoked by uid 500); 5 Nov 2013 18:25:18 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 9399 invoked by uid 99); 5 Nov 2013 18:25:18 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 05 Nov 2013 18:25:18 +0000 Date: Tue, 5 Nov 2013 18:25:18 +0000 (UTC) From: "Kousuke Saruta (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-5268) HiveServer2 accumulates orphaned OperationHandle objects when a client fails while executing query 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-5268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13814094#comment-13814094 ] Kousuke Saruta commented on HIVE-5268: -------------------------------------- I think this issue is related to HIVE-5296. > HiveServer2 accumulates orphaned OperationHandle objects when a client fails while executing query > -------------------------------------------------------------------------------------------------- > > Key: HIVE-5268 > URL: https://issues.apache.org/jira/browse/HIVE-5268 > Project: Hive > Issue Type: Bug > Components: HiveServer2 > Reporter: Vaibhav Gumashta > Assignee: Thiruvel Thirumoolan > Fix For: 0.13.0 > > Attachments: HIVE-5268_prototype.patch > > > When queries are executed against the HiveServer2 an OperationHandle object is stored in the OperationManager.handleToOperation HashMap. Currently its the duty of the JDBC client to explicitly close to cleanup the entry in the map. But if the client fails to close the statement then the OperationHandle object is never cleaned up and gets accumulated in the server. > This can potentially cause OOM on the server over time. This also can be used as a loophole by a malicious client to bring down the Hive server. -- This message was sent by Atlassian JIRA (v6.1#6144)