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 BB33A17749 for ; Wed, 29 Oct 2014 23:57:34 +0000 (UTC) Received: (qmail 89341 invoked by uid 500); 29 Oct 2014 23:57:34 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 89270 invoked by uid 500); 29 Oct 2014 23:57:34 -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 89259 invoked by uid 500); 29 Oct 2014 23:57:34 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 89256 invoked by uid 99); 29 Oct 2014 23:57:34 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 29 Oct 2014 23:57:34 +0000 Date: Wed, 29 Oct 2014 23:57:34 +0000 (UTC) From: "Alan Gates (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-8258) Compactor cleaners can be starved on a busy table or partition. 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-8258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14189328#comment-14189328 ] Alan Gates commented on HIVE-8258: ---------------------------------- I added this value to Hive Transactions - Configuration and Configuration Properties - Transactions and Compactor. I did not add it to HIve Transactions - Configuration Value to Set for Compaction because it's not necessary to set this (it will work with the default value) and I don't suspect many users will set it. I removed the TODOC14 label since I added the documentation. > Compactor cleaners can be starved on a busy table or partition. > --------------------------------------------------------------- > > Key: HIVE-8258 > URL: https://issues.apache.org/jira/browse/HIVE-8258 > Project: Hive > Issue Type: Bug > Components: Transactions > Affects Versions: 0.13.1 > Reporter: Alan Gates > Assignee: Alan Gates > Priority: Critical > Fix For: 0.14.0 > > Attachments: HIVE-8258.2.patch, HIVE-8258.3.patch, HIVE-8258.4.patch, HIVE-8258.5.patch, HIVE-8258.6.patch, HIVE-8258.patch > > > Currently the cleaning thread in the compactor does not run on a table or partition while any locks are held on this partition. This leaves it open to starvation in the case of a busy table or partition. It only needs to wait until all locks on the table/partition at the time of the compaction have expired. Any jobs initiated after that (and thus any locks obtained) will be for the new versions of the files. -- This message was sent by Atlassian JIRA (v6.3.4#6332)