Return-Path: Delivered-To: apmail-hive-dev-archive@www.apache.org Received: (qmail 18962 invoked from network); 4 Jan 2011 12:04:09 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 4 Jan 2011 12:04:09 -0000 Received: (qmail 81696 invoked by uid 500); 4 Jan 2011 12:04:09 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 81486 invoked by uid 500); 4 Jan 2011 12:04:08 -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 81478 invoked by uid 500); 4 Jan 2011 12:04:08 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 81475 invoked by uid 99); 4 Jan 2011 12:04:07 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Jan 2011 12:04:07 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of mohitsikri@huawei.com designates 119.145.14.64 as permitted sender) Received: from [119.145.14.64] (HELO szxga01-in.huawei.com) (119.145.14.64) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Jan 2011 12:04:01 +0000 Received: from huawei.com (szxga05-in [172.24.2.49]) by szxga05-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LEH00MVSYU3SG@szxga05-in.huawei.com> for hive-dev@hadoop.apache.org; Tue, 04 Jan 2011 20:03:39 +0800 (CST) Received: from huawei.com ([172.24.2.119]) by szxga05-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LEH00LGHYU2GA@szxga05-in.huawei.com> for hive-dev@hadoop.apache.org; Tue, 04 Jan 2011 20:03:39 +0800 (CST) Received: from blrnshtipl5nc ([10.18.1.35]) by szxml06-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTPA id <0LEH004NGYU16M@szxml06-in.huawei.com> for hive-dev@hadoop.apache.org; Tue, 04 Jan 2011 20:03:38 +0800 (CST) Date: Tue, 04 Jan 2011 17:33:53 +0530 From: Mohit Subject: Regarding Hive History File(s). To: hive-dev@hadoop.apache.org Cc: edlinuxguru@gmail.com, carl@cloudera.com Reply-to: mohitsikri@huawei.com Message-id: <747D85055E1446C5AA1F88FB194950E3@china.huawei.com> Organization: Htipl MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.3790.4657 X-Mailer: Microsoft Office Outlook 11 Content-type: multipart/alternative; boundary="Boundary_(ID_BjAc3lrT8Lu0W5mZ9ex/fw)" Thread-index: AcusB3SHkiS898IgSxKemxVrfJ8x6w== --Boundary_(ID_BjAc3lrT8Lu0W5mZ9ex/fw) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Hello All, What is the purpose of maintaining hive history files which contain session information like session start, query start, query end, task start, task end etc.? Are they being used later (say by a tool) for some purpose? I don't see these files being getting deleted from the system ;any configuration needed to be set to enable deletion or Is there any design strategy/decision/rationale for not deleting them at all? Also, in these files I don't see the session end message being logged, is it reserved for future use? -Mohit **************************************************************************** *********** This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! --Boundary_(ID_BjAc3lrT8Lu0W5mZ9ex/fw)--