From dev-return-80431-archive-asf-public=cust-asf.ponee.io@zookeeper.apache.org Thu Apr 25 02:51:02 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 6E7B2180668 for ; Thu, 25 Apr 2019 04:51:02 +0200 (CEST) Received: (qmail 51383 invoked by uid 500); 25 Apr 2019 02:51:01 -0000 Mailing-List: contact dev-help@zookeeper.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@zookeeper.apache.org Delivered-To: mailing list dev@zookeeper.apache.org Received: (qmail 51372 invoked by uid 99); 25 Apr 2019 02:51:01 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 25 Apr 2019 02:51:01 +0000 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 775CFE2B2A for ; Thu, 25 Apr 2019 02:51:00 +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 1B182256E3 for ; Thu, 25 Apr 2019 02:51:00 +0000 (UTC) Date: Thu, 25 Apr 2019 02:51:00 +0000 (UTC) From: "maoling (JIRA)" To: dev@zookeeper.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (ZOOKEEPER-3352) Use LevelDB For Backend MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/ZOOKEEPER-3352?page=3Dcom.atlas= sian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D= 16825661#comment-16825661 ]=20 maoling commented on ZOOKEEPER-3352: ------------------------------------ [~belugabehr] 1.if we pick up a LSM one, we should really take care and test the issue.e.= g: random read,write amplification 2.IMO, a LMDB/B+tree one is more appropriate for the system like zk which i= s read-heavy and it also have a good write perfermace. =C2=A0 =C2=A0 =C2=A0 =C2=A0e.g https://github.com/lmdbjava/lmdbjava > Use LevelDB For Backend > ----------------------- > > Key: ZOOKEEPER-3352 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3352 > Project: ZooKeeper > Issue Type: New Feature > Components: server > Reporter: David Mollitor > Assignee: David Mollitor > Priority: Critical > Fix For: 4.0.0 > > > Use LevelDB for managing data stored in ZK (transaction logs and snapshot= s). > https://stackoverflow.com/questions/6779669/does-leveldb-support-java -- This message was sent by Atlassian JIRA (v7.6.3#76005)