From dev-return-77492-archive-asf-public=cust-asf.ponee.io@zookeeper.apache.org Thu Jan 24 14:23:04 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 [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 6920F18062C for ; Thu, 24 Jan 2019 14:23:04 +0100 (CET) Received: (qmail 4269 invoked by uid 500); 24 Jan 2019 13:23:03 -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 4258 invoked by uid 99); 24 Jan 2019 13:23:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 24 Jan 2019 13:23:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 15A76180AD4 for ; Thu, 24 Jan 2019 13:23:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.501 X-Spam-Level: X-Spam-Status: No, score=-109.501 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id c8i3bucecZOT for ; Thu, 24 Jan 2019 13:23:02 +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 6DE3D60D95 for ; Thu, 24 Jan 2019 13:23:01 +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 AD3F0E26A0 for ; Thu, 24 Jan 2019 13:23:00 +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 5993F242BD for ; Thu, 24 Jan 2019 13:23:00 +0000 (UTC) Date: Thu, 24 Jan 2019 13:23:00 +0000 (UTC) From: "maoling (JIRA)" To: dev@zookeeper.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (ZOOKEEPER-3167) add an API and the corresponding CLI to get total count of recursive sub nodes under a specific path 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-3167?page=3Dcom.atla= ssian.jira.plugin.system.issuetabpanels:all-tabpanel ] maoling updated ZOOKEEPER-3167: ------------------------------- Summary: add an API and the corresponding CLI to get total count of rec= ursive sub nodes under a specific path (was: add an API to get total count= of recursive sub nodes of one node) > add an API and the corresponding CLI to get total count of recursive sub = nodes under a specific path > -------------------------------------------------------------------------= --------------------------- > > Key: ZOOKEEPER-3167 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3167 > Project: ZooKeeper > Issue Type: New Feature > Affects Versions: 3.4.5, 3.5.0 > Reporter: =E7=94=B0=E6=AF=85=E7=BE=A4 > Assignee: maoling > Priority: Minor > Labels: patch, pull-request-available > Fix For: 3.4.5 > > Time Spent: 50m > Remaining Estimate: 0h > > 1. In production environment, there will be always a situation that there= are a lot of recursive sub nodes of one node. We need to count total numbe= r of it. > 2. Now, we can only use API getChildren which returns the List o= f first level of sub nodes. We need to iterate every sub node to get recurs= ive sub nodes. It will cost a lot of time. > 3. In zookeeper server side, it uses Hasp to store nod= e. The key of the map represents the path of the node. We can iterate the = map get total number of all levels of sub nodes of one node. -- This message was sent by Atlassian JIRA (v7.6.3#76005)