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Date: Wed, 28 Jun 2017 07:09:00 +0000 (UTC)
From: "Ashish Singhi (JIRA)" <jira@apache.org>
To: dev@zookeeper.apache.org
Message-ID: <JIRA.12999918.1472107212000.121809.1498633740042@Atlassian.JIRA>
In-Reply-To: <JIRA.12999918.1472107212000@Atlassian.JIRA>
References: <JIRA.12999918.1472107212000@Atlassian.JIRA> <JIRA.12999918.1472107212285@jira-lw-us.apache.org>
Subject: [jira] [Commented] (ZOOKEEPER-2530) When zookeeper started in SSL
 mode, set a "get" watcher on a znode from zkCli client, restart the zkCli,
 the "Data" watcher still present. Trying removing that watcher fails saying
 no watcher available
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archived-at: Wed, 28 Jun 2017 07:09:06 -0000


    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2530?page=3Dcom.atlas=
sian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D=
16066028#comment-16066028 ]=20

Ashish Singhi commented on ZOOKEEPER-2530:
------------------------------------------

This is duplicate of ZOOKEEPER-2358. The patch in ZOOKEEPER-2358 will solve=
 this issue.

> When zookeeper started in SSL mode, set a "get" watcher on a znode from z=
kCli client, restart the zkCli, the "Data" watcher still present. Trying re=
moving that watcher fails saying no watcher available
> -------------------------------------------------------------------------=
---------------------------------------------------------------------------=
-----------------------------------------------------
>
>                 Key: ZOOKEEPER-2530
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2530
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.5.1
>            Reporter: Rakesh Kumar Singh
>
> When zookeeper started in SSL mode, set a "get" watcher on a znode from z=
kCli client, restart the zkCli, the "Data" watcher still present. Trying re=
moving that watcher fails saying no watcher available
> Steps to reproduce:-
> Start Zookeeper server in ssl mode by configuring all required ssl config=
uration
> Start zkCli and set a "Data" watcher "get -w "
> Restart the zkCli client
> Check the watcher. Still the Data watcher is available
> Try to remove the watcher using removewachers, it fails saying no watcher=
 available.
> BLR1000007042:~ # echo wchs | netcat localhost 3181
> 1 connections watching 1 paths
> Total watches:1
> BLR1000007042:~ # echo wchs | netcat localhost 3181
> 1 connections watching 1 paths
> Total watches:1
> Client log as below:-
> [zk: localhost:2181(CONNECTED) 0] get -w /test
> hello1
> [zk: localhost:2181(CONNECTED) 1] quit
> 2016-08-25 14:22:00,706 [myid:] - INFO [main:ClientCnxnSocketNetty@201] -=
 channel is told closing
> 2016-08-25 14:22:00,706 [myid:] - INFO [main:ZooKeeper@1110] - Session: 0=
x1019f8940e20000 closed
> 2016-08-25 14:22:00,706 [myid:] - INFO [main-EventThread:ClientCnxn$Event=
Thread@542] - EventThread shut down for session: 0x1019f8940e20000
> 2016-08-25 14:22:00,707 [myid:] - INFO [New I/O worker #1:ClientCnxnSocke=
tNetty$ZKClientHandler@377] - channel is disconnected: [id: 0x9dab735e, /12=
7.0.0.1:57415 :> localhost/127.0.0.1:2181]
> 2016-08-25 14:22:00,707 [myid:] - INFO [New I/O worker #1:ClientCnxnSocke=
tNetty@201] - channel is told closing
> BLR1000007042:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin # .=
/zkCli.sh
> /usr/bin/java
> Connecting to localhost:2181
> 2016-08-25 14:22:15,079 [myid:] - INFO [main:Environment@109] - Client en=
vironment:zookeeper.version=3D3.5.1-alpha--1, built on 08/18/2016 08:20 GMT
> 2016-08-25 14:22:15,083 [myid:] - INFO [main:Environment@109] - Client en=
vironment:host.name=3DBLR1000007042
> 2016-08-25 14:22:15,084 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.version=3D1.7.0_79
> 2016-08-25 14:22:15,086 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.vendor=3DOracle Corporation
> 2016-08-25 14:22:15,086 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.home=3D/usr/java/jdk1.7.0_79/jre
> 2016-08-25 14:22:15,086 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.class.path=3D/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-a=
lpha/bin/../build/classes:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alp=
ha/bin/../build/lib/*.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alp=
ha/bin/../lib/slf4j-log4j12-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug/zookeep=
er-3.5.1-alpha/bin/../lib/slf4j-api-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug=
/zookeeper-3.5.1-alpha/bin/../lib/servlet-api-2.5-20081211.jar:/home/Rakesh=
/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/netty-3.7.0.Final.jar:/h=
ome/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/log4j-1.2.16.j=
ar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/jline-2.1=
1.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/jetty-=
util-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../=
lib/jetty-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bi=
n/../lib/javacc.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin=
/../lib/jackson-mapper-asl-1.9.11.jar:/home/Rakesh/Zookeeper/18_Aug/zookeep=
er-3.5.1-alpha/bin/../lib/jackson-core-asl-1.9.11.jar:/home/Rakesh/Zookeepe=
r/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/commons-cli-1.2.jar:/home/Rakesh/=
Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../lib/ant-eclipse-1.0-jvm1.2.ja=
r:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../zookeeper-3.5.=
1-alpha.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bin/../src/=
java/lib/ant-eclipse-1.0-jvm1.2.jar:/home/Rakesh/Zookeeper/18_Aug/zookeeper=
-3.5.1-alpha/bin/../conf:
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.library.path=3D/usr/java/packages/lib/amd64:/usr/lib64:/lib6=
4:/lib:/usr/lib
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.io.tmpdir=3D/tmp
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:java.compiler=3D
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.name=3DLinux
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.arch=3Damd64
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.version=3D3.0.76-0.11-default
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:user.name=3Droot
> 2016-08-25 14:22:15,087 [myid:] - INFO [main:Environment@109] - Client en=
vironment:user.home=3D/root
> 2016-08-25 14:22:15,088 [myid:] - INFO [main:Environment@109] - Client en=
vironment:user.dir=3D/home/Rakesh/Zookeeper/18_Aug/zookeeper-3.5.1-alpha/bi=
n
> 2016-08-25 14:22:15,088 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.memory.free=3D52MB
> 2016-08-25 14:22:15,090 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.memory.max=3D227MB
> 2016-08-25 14:22:15,090 [myid:] - INFO [main:Environment@109] - Client en=
vironment:os.memory.total=3D57MB
> 2016-08-25 14:22:15,095 [myid:] - INFO [main:ZooKeeper@716] - Initiating =
client connection, connectString=3Dlocalhost:2181 sessionTimeout=3D30000 wa=
tcher=3Dorg.apache.zookeeper.ZooKeeperMain$MyWatcher@272f15b0
> Welcome to ZooKeeper!
> 2016-08-25 14:22:15,182 [myid:] - INFO [main-SendThread(localhost:2181):C=
lientCnxn$SendThread@1138] - Opening socket connection to server localhost/=
127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
> JLine support is enabled
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [zk: localhost:2181(CONNECTING) 0] 2016-08-25 14:22:15,502 [myid:] - INFO=
 [main-SendThread(localhost:2181):ClientCnxnSocketNetty$ZKClientPipelineFac=
tory@363] - SSL handler added for channel: null
> 2016-08-25 14:22:15,537 [myid:] - INFO [New I/O worker #1:ClientCnxn$Send=
Thread@980] - Socket connection established, initiating session, client: /1=
27.0.0.1:57420, server: localhost/127.0.0.1:2181
> 2016-08-25 14:22:15,540 [myid:] - INFO [New I/O worker #1:ClientCnxnSocke=
tNetty$1@146] - channel is connected: [id: 0xfc4fe483, /127.0.0.1:57420 =3D=
> localhost/127.0.0.1:2181]
> 2016-08-25 14:22:15,673 [myid:] - INFO [New I/O worker #1:ClientCnxn$Send=
Thread@1400] - Session establishment complete on server localhost/127.0.0.1=
:2181, sessionid =3D 0x1019f8940e20001, negotiated timeout =3D 30000
> WATCHER::
> WatchedEvent state:SyncConnected type:None path:null
> [zk: localhost:2181(CONNECTED) 0] removewatches /test -a
> 2016-08-25 14:24:14,420 [myid:] - ERROR [New I/O worker #1:ClientCnxn@725=
] - Failed to find watcher!
> org.apache.zookeeper.KeeperException$NoWatcherException: KeeperErrorCode =
=3D No such watcher for /test
> at org.apache.zookeeper.ZooKeeper$ZKWatchManager.containsWatcher(ZooKeepe=
r.java:377)
> at org.apache.zookeeper.ZooKeeper$ZKWatchManager.removeWatcher(ZooKeeper.=
java:252)
> at org.apache.zookeeper.WatchDeregistration.unregister(WatchDeregistratio=
n.java:58)
> at org.apache.zookeeper.ClientCnxn.finishPacket(ClientCnxn.java:712)
> at org.apache.zookeeper.ClientCnxn.access$1500(ClientCnxn.java:97)
> at org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.jav=
a:948)
> at org.apache.zookeeper.ClientCnxnSocketNetty$ZKClientHandler.messageRece=
ived(ClientCnxnSocketNetty.java:419)
> at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(Si=
mpleChannelUpstreamHandler.java:70)
> at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultCha=
nnelPipeline.java:564)
> at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerCo=
ntext.sendUpstream(DefaultChannelPipeline.java:791)
> at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296=
)
> at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageR=
eceived(FrameDecoder.java:462)
> at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecod=
er.java:443)
> at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(Frame=
Decoder.java:303)
> at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(Si=
mpleChannelUpstreamHandler.java:70)
> at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultCha=
nnelPipeline.java:564)
> at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultCha=
nnelPipeline.java:559)
> at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268=
)
> at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255=
)
> at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
> at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractN=
ioWorker.java:109)
> at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNio=
Selector.java:312)
> at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWo=
rker.java:90)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
> at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable=
.java:108)
> at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofW=
orker.java:42)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.j=
ava:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.=
java:615)
> at java.lang.Thread.run(Thread.java:745)
> KeeperErrorCode =3D No such watcher for /test
> [zk: localhost:2181(CONNECTED) 1]


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