Return-Path: X-Original-To: apmail-spark-issues-archive@minotaur.apache.org Delivered-To: apmail-spark-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 DCCFC18206 for ; Wed, 23 Mar 2016 20:06:26 +0000 (UTC) Received: (qmail 97990 invoked by uid 500); 23 Mar 2016 20:06:26 -0000 Delivered-To: apmail-spark-issues-archive@spark.apache.org Received: (qmail 97730 invoked by uid 500); 23 Mar 2016 20:06:26 -0000 Mailing-List: contact issues-help@spark.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@spark.apache.org Received: (qmail 97476 invoked by uid 99); 23 Mar 2016 20:06:25 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 23 Mar 2016 20:06:25 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 811962C1F5D for ; Wed, 23 Mar 2016 20:06:25 +0000 (UTC) Date: Wed, 23 Mar 2016 20:06:25 +0000 (UTC) From: "Herman van Hovell (JIRA)" To: issues@spark.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (SPARK-13325) Create a high-quality 64-bit hashcode expression 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/SPARK-13325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Herman van Hovell reassigned SPARK-13325: ----------------------------------------- Assignee: Herman van Hovell > Create a high-quality 64-bit hashcode expression > ------------------------------------------------ > > Key: SPARK-13325 > URL: https://issues.apache.org/jira/browse/SPARK-13325 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Herman van Hovell > Assignee: Herman van Hovell > > Spark currently lacks a high quality 64-bit hashcode. This is especially useful for the HyperLogLog++ aggregate & potentially other probabilistic datastructures. > I have been looking at xxHash for a while now, and I'd like to see if we can get the same (stellar) performance in Java/Scala. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org For additional commands, e-mail: issues-help@spark.apache.org