From issues-return-1538-archive-asf-public=cust-asf.ponee.io@zookeeper.apache.org Wed Oct 9 17:11:03 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 83805180645 for ; Wed, 9 Oct 2019 19:11:03 +0200 (CEST) Received: (qmail 67649 invoked by uid 500); 9 Oct 2019 17:11:02 -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 67639 invoked by uid 99); 9 Oct 2019 17:11:02 -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; Wed, 09 Oct 2019 17:11:02 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 30BA4E315C for ; Wed, 9 Oct 2019 17:11:02 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 504647808B7 for ; Wed, 9 Oct 2019 17:11:00 +0000 (UTC) Date: Wed, 9 Oct 2019 17:11:00 +0000 (UTC) From: "Hudson (Jira)" To: issues@zookeeper.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (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.atlas= sian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D= 16947859#comment-16947859 ]=20 Hudson commented on ZOOKEEPER-3471: ----------------------------------- SUCCESS: Integrated in Jenkins build ZooKeeper-trunk #730 (See [https://bui= lds.apache.org/job/ZooKeeper-trunk/730/]) ZOOKEEPER-3471: Fix potential lock unavailable due to dangling ephemeral (a= ndor: rev 4951a090d7c946f57ac5ab09b5d48a5d7831001d) * (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeep= erServer.java * (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/quorum/= SessionUpgradeQuorumTest.java > 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 > > Time Spent: 1.5h > Remaining Estimate: 0h > > 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 (v8.3.4#803005)