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Date: Fri, 14 Mar 2014 12:17:25 +0530
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 <CAFhpSaVWEijW4J3E6ZbWQuJPeS2q7jUgjEFfZ+YS7HfM6Pm9YQ@mail.gmail.com>
Subject: Re: Query regarding Zookeeper Windows API start/stop, using Zk as a
 windows service(using prunsrv)
From: Salabhanjika S <salabhanjika9@gmail.com>
To: user@zookeeper.apache.org
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Response inline.

> I am using zookeeper in my product.
Which version of ZooKeeper you are using?

> While working with zookeeper on Windows, I am creating a service(using pr=
unsrv) ,
> I have few queries and issues. Listed them all,
One mail per query/issue would be better. I feel keeping the mail
compactwill help you to get quick responses.

> Issues:
>
> 1)      zkServer.cmd didn't start on Win server 2008 machine & Win 7 Ente=
rprise(64 bit both), had to replace the following line,
>
> java "-Dzookeeper.log.dir=3D%ZOO_LOG_DIR%" "-Dzookeeper.root.logger=3D%ZO=
O_LOG4J_PROP%" -cp "%CLASSPATH%" %ZOOMAIN% "%ZOOCFG%" %*
>
> to
>
> java "-Dzookeeper.log.dir=3D%ZOO_LOG_DIR%" "-Dzookeeper.root.logger=3D%ZO=
O_LOG4J_PROP%" -cp "%CLASSPATH%" %ZOOMAIN% "%ZOOCFG%"
>               And it worked, could it be fixed in some other way?

start/stop from command line is not yet supported for windows.
ZOOKEEPER-1122 is still open.

>
> 2)      In the zoo.cnf I specified the dataDir, still it creates some oth=
er directory (bin/zookeeper-3.4.5zookeeper-3.4.5data/ version-2/snapshot) a=
nd stores the snapshots there.

You may use relative path.
dataDir=3D../data

You need to esacpe correctly if you need to use absolute paths.
dataDir=3DC\:\\tools\\zookeeper-3.3.6\\data

>
> Queries:
>
> 1)      There is no start/stop with zkServer.cmd as it is in zkServer.sh,=
 so basically it is started with zkServer.cmd but to stop I do a Ctrl+C/Z
>
> So if I start the process, it is a foreground process and gets killed whe=
n I do a ctrl+C

Yes

>
>
> 2)      I have to create a zookeeper service, and I am using prunsrv to d=
o that. I figured out the following 2 ways to do so.
>
>
>
> a)       prunsrv //IS//Zookeeper --DisplayName=3D" ZOOKEEPER Service" --D=
escription=3D" ZOOKEEPER Service" --Startup=3Dauto --StartMode=3Dexe --Star=
tPath=3D%ZOOKEEPER_HOME% --StartImage=3D%ZOOKEEPER_HOME%\bin\zkServer.cmd -=
-StopTimeout=3D5 --LogPath=3D%LOGS_DIR% --LogPrefix=3Dzookeeper --LogLevel=
=3DInfo --PidFile=3Dzookeeper.pid --StdOutput=3Dauto --StdError=3Dauto
>
>
>
>
> b)      cd %ZOOKEEPER_HOME%\bin\
>                         call "%~dp0zkEnv.cmd"
>                         set ZOOMAIN=3Dorg.apache.zookeeper.server.quorum.=
QuorumPeerMain
>                         prunsrv //IS//Zookeeper --DisplayName=3D" ZOOKEEP=
ER Service" --Description=3D" ZOOKEEPER Service" --Jvm=3D"%JVM_DLL%" --JvmO=
ptions=3D!JAVA_OPTS!  --Environment=3Dzookeeper.log.dir=3D%ZOO_LOG_DIR%;zoo=
keeper.root.logger=3D%ZOO_LOG4J_PROP%; --Startup=3Dauto --LibraryPath=3D%LI=
B_DIR% --StartMode=3Djvm --Classpath=3D%CLASSPATH% %ZOOMAIN% %ZOOCFG% --Sta=
rtClass=3Dorg.apache.zookeeper.server.quorum.QuorumPeerMain --StartMethod=
=3Dstart --StopMode=3Djvm --StopClass=3Dorg.apache.zookeeper.server.quorum.=
QuorumPeerMain --StopMethod=3Dstop --StopTimeout=3D10 --LogPath=3D%LOGS_DIR=
% --LogPrefix=3Dzookeeper --LogLevel=3DInfo --PidFile=3Dzookeeper.pid --Std=
Output=3Dauto --StdError=3Dauto
>
> basically in the second approach I am myself doing all tasks done by the =
zkServer.cmd
>
> =3D>> My Query is in the second step(2b), that to stop  the service there=
 should be a stop method exposed, so that when I stop the service it is cal=
led.
> So right now if I create a service and start it, ZK runs fine, but stoppi=
ng it takes indefinitely, so I have to go and kill the process.
> Is there some stop() for the same, I see a shutdown() but there is no des=
cription for it
>
> I went through the class org.apache.zookeeper.server.quorum.QuorumPeerMai=
n, here the main() is the start method( if my understanding is correct), an=
d there should be some method to shutdown the process.
>
>
> https://issues.apache.org/jira/browse/ZOOKEEPER-1122, exposes a start/sto=
p, but the stop has some issues
>
> it throws the following error:
>
> E:\zookeeper-3.4.5\zookeeper-3.4.5\bin>zkServer.cmd stop
> "JMX enabled by default"
> "Using config: E:\zookeeper-3.4.5\zookeeper-3.4.5\bin\..\conf\zoo.cfg"
> "Stopping zookeeper ... "
> ERROR: The process with PID 452 (child process of PID 4) could not be ter=
minated.
> Reason: This is critical system process. Taskkill cannot end this process=
.
> ERROR: The process with PID 4 (child process of PID 0) could not be termi=
nated.
> Reason: Access is denied.
> ERROR: The process with PID 0 (child process of PID 0) could not be termi=
nated.
> Reason: This is critical system process. Taskkill cannot end this process=
.
> STOPED
>
Windows services runs under protected more. ZooKeeper shutdown is
based on kill signal. This doesn't work when you install ZooKeeper as
a windows service. This results in error you see.
Try installing ZooKeeper as a console application which you should be
able to stop by pressing Ctrl+C

> I am running this stop command on a Administrator console.
>
> E:\zookeeper-3.4.5\zookeeper-3.4.5\bin>tasklist | findstr "java"
> java.exe                     10324 Console                    1     36,03=
6 K.
>
>
> Any help will be highlt appreciated,
>
> Thanks,
> Nandini