From issues-return-469-archive-asf-public=cust-asf.ponee.io@zookeeper.apache.org Sun Jul 28 18:08:02 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 B3B42180685 for ; Sun, 28 Jul 2019 20:08:01 +0200 (CEST) Received: (qmail 50160 invoked by uid 500); 28 Jul 2019 18:08:01 -0000 Mailing-List: contact issues-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 issues@zookeeper.apache.org Received: (qmail 50142 invoked by uid 99); 28 Jul 2019 18:08:01 -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; Sun, 28 Jul 2019 18:08:01 +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 6FFD5E2E8A for ; Sun, 28 Jul 2019 18:08:00 +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 26FAB2661D for ; Sun, 28 Jul 2019 18:08:00 +0000 (UTC) Date: Sun, 28 Jul 2019 18:08:00 +0000 (UTC) From: "ASF GitHub Bot (JIRA)" To: issues@zookeeper.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (ZOOKEEPER-3471) Potential lock unavailable due to dangling ephemeral nodes left during local session upgrading 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-3471?page=3Dcom.atla= ssian.jira.plugin.system.issuetabpanels:all-tabpanel ] ASF GitHub Bot updated ZOOKEEPER-3471: -------------------------------------- Labels: pull-request-available (was: ) > Potential lock unavailable due to dangling ephemeral nodes left during lo= cal session upgrading > -------------------------------------------------------------------------= --------------------- > > Key: ZOOKEEPER-3471 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3471 > Project: ZooKeeper > Issue Type: Bug > Components: server > Affects Versions: 3.6.0 > Reporter: Fangmin Lv > Assignee: Fangmin Lv > Priority: Critical > Labels: pull-request-available > Fix For: 3.6.0 > > > There is a race condition which=C2=A0might be triggered if the client cre= ate session, upgrading the session with ephemeral node, then immediately is= sued close session request before it's removed from local session tracker. > =C2=A0 > The close session request will be treated as a local session close reques= t since it still exists in the local session tracker, which goes through th= e ZK pipeline and delete the session from both local and global session tra= cker. Since the session is not tracked anymore, it will leave the ephemeral= nodes there. > =C2=A0 > =C2=A0 -- This message was sent by Atlassian JIRA (v7.6.14#76016)