From common-issues-return-124962-apmail-hadoop-common-issues-archive=hadoop.apache.org@hadoop.apache.org Sun Jan 8 22:20:00 2017 Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 3F8AB19010 for ; Sun, 8 Jan 2017 22:20:00 +0000 (UTC) Received: (qmail 14568 invoked by uid 500); 8 Jan 2017 22:20:00 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 14514 invoked by uid 500); 8 Jan 2017 22:20:00 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 14469 invoked by uid 99); 8 Jan 2017 22:19:59 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 08 Jan 2017 22:19:59 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id B61992C2A6B for ; Sun, 8 Jan 2017 22:19:59 +0000 (UTC) Date: Sun, 8 Jan 2017 22:19:59 +0000 (UTC) From: "John Zhuge (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HADOOP-12876) [Azure Data Lake] Support for process level FileStatus cache to optimize GetFileStatus frequent opeations 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/HADOOP-12876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] John Zhuge updated HADOOP-12876: -------------------------------- Component/s: fs > [Azure Data Lake] Support for process level FileStatus cache to optimize GetFileStatus frequent opeations > --------------------------------------------------------------------------------------------------------- > > Key: HADOOP-12876 > URL: https://issues.apache.org/jira/browse/HADOOP-12876 > Project: Hadoop Common > Issue Type: Improvement > Components: fs, fs/adl, tools > Reporter: Vishwajeet Dusane > Assignee: Vishwajeet Dusane > > Add support to cache GetFileStatus and ListStatus response locally for limited period of time. Local cache for limited period of time would optimize number of calls for GetFileStatus operation. > One of the example where local limited period cache would be useful - terasort ListStatus on input directory follows with GetFileStatus operation on each file within directory. For 2048 input files in a directory would save 2048 GetFileStatus calls during start up (Using the ListStatus response to cache FileStatus instances). -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-issues-help@hadoop.apache.org