Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id E6B2B200D68 for ; Thu, 28 Dec 2017 12:57:04 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id E5361160C1F; Thu, 28 Dec 2017 11:57:04 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 37DB0160C16 for ; Thu, 28 Dec 2017 12:57:04 +0100 (CET) Received: (qmail 47168 invoked by uid 500); 28 Dec 2017 11:57:03 -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 47157 invoked by uid 99); 28 Dec 2017 11:57:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 28 Dec 2017 11:57:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id C0EE81A0F40 for ; Thu, 28 Dec 2017 11:57:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id 65Yq0Ddp7JnJ for ; Thu, 28 Dec 2017 11:57:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 96D525FAEA for ; Thu, 28 Dec 2017 11:57:01 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id CE72EE0BC8 for ; Thu, 28 Dec 2017 11:57:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 7E12E240DE for ; Thu, 28 Dec 2017 11:57:00 +0000 (UTC) Date: Thu, 28 Dec 2017 11:57:00 +0000 (UTC) From: "Dmitry Chuyko (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HADOOP-15033) Use java.util.zip.CRC32C for Java 9 and above MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 28 Dec 2017 11:57:05 -0000 [ https://issues.apache.org/jira/browse/HADOOP-15033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Dmitry Chuyko updated HADOOP-15033: ----------------------------------- Attachment: HADOOP-15033.009.patch > Use java.util.zip.CRC32C for Java 9 and above > --------------------------------------------- > > Key: HADOOP-15033 > URL: https://issues.apache.org/jira/browse/HADOOP-15033 > Project: Hadoop Common > Issue Type: Improvement > Components: performance, util > Affects Versions: 3.0.0 > Reporter: Dmitry Chuyko > Labels: Java9, common, jdk9 > Attachments: HADOOP-15033.001.patch, HADOOP-15033.001.patch, HADOOP-15033.002.patch, HADOOP-15033.003.patch, HADOOP-15033.003.patch, HADOOP-15033.004.patch, HADOOP-15033.005.diff, HADOOP-15033.005.diff, HADOOP-15033.005.diff, HADOOP-15033.005.patch, HADOOP-15033.006.patch, HADOOP-15033.007.patch, HADOOP-15033.007.patch, HADOOP-15033.008.patch, HADOOP-15033.009.patch, HADOOP-15033.009.patch, HADOOP-15033.009.patch, HADOOP-15033.009.patch, HADOOP-15033.009.patch, HADOOP-15033.009.patch > > > java.util.zip.CRC32C implementation is available since Java 9. > https://docs.oracle.com/javase/9/docs/api/java/util/zip/CRC32C.html > Platform specific assembler intrinsics make it more effective than any pure Java implementation. > Hadoop is compiled against Java 8 but class constructor may be accessible with method handle on 9 to instances implementing Checksum in runtime. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-issues-help@hadoop.apache.org