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	 <c52f69030910240150mc27d4e5w34503957cf954fa4@mail.gmail.com>
Date: Sat, 24 Oct 2009 17:37:49 +0800
Message-ID: <69a198ed0910240237h79e8e447lec42a982c9c6ca0a@mail.gmail.com>
Subject: Re: Fail to connect a remote hbase server with java api
From: =?UTF-8?B?5qKB5pmv5piO?= <futureha@gmail.com>
To: hbase-user@hadoop.apache.org
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hi ,i open it on 60000 port ,and it still fail
as u say ,i type it

HBase tree in ZooKeeper is rooted at /hbase
  Cluster up? true
  In safe mode? false
  Master address: 222.73.236.160:60000
  Region server holding ROOT: 222.73.236.160:60020
  Region servers:
    - 222.73.236.160:60020

and i try a small java test in remote hbase server ,it also fails. if it 's
the port problem ,
to connect by itself maybe not refused.

        HBaseConfiguration conf =3D new HBaseConfiguration();
        HTable table =3D new HTable(conf, "blog".getBytes());
        Get g =3D new Get("1".getBytes());
        Result r =3D table.get(g);
        System.out.println(r);

and finally i look in the logs, only find something maybe wrong ,but i dont
know how to deal with it. but i dont
understand ,why does hbase shell work well.

2009-10-25 01:17:51,971 INFO org.apache.zookeeper.server.NIOServerCnxn:
Connected to /222.73.236.160:38186 lastZxid 0
2009-10-25 01:17:51,971 INFO org.apache.zookeeper.server.NIOServerCnxn:
Creating new session 0x124878c214b0003
2009-10-25 01:17:51,972 INFO org.apache.zookeeper.server.NIOServerCnxn:
Finished init of 0x124878c214b0003 valid:true
2009-10-25 01:17:52,437 WARN
org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
processing sessionid:0x124878c214b0003 type:create cxid:0x2
zxid:0xfffffffffffffffe txntype:unknown n/a
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
=3D
NodeExists
    at
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProces=
sor.java:245)
    at
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.j=
ava:114)


2009/10/24 Tatsuya Kawano <tatsuyaml@snowcocoa.info>

> Hello,
>
> On Sat, Oct 24, 2009 at 12:56 PM, =E6=A2=81=E6=99=AF=E6=98=8E wrote:
> > i open the 2181 and 2888 ,3888,60010,60030 ,and hadoop server port
>
> You also need to open port 60000 and 60020. 60000 is used by HBase
> master, and 60020 is used by HBase region servers. 60010 and 60030 are
> not necessary for client to server or server to server communication;
> they are for web-based console to monitor HBase status via a web
> browser.
>
> Take a look at conf/hbase-defaul.xml. It has all HBase settings with
> their default values and descriptions. Those descriptions will help
> you to understand what ports HBase uses and what customizations can be
> done via hbase-site.xml.
>
>
> > java.lang.reflect.UndeclaredThrowableException
> >    at $Proxy11.getRegionInfo(Unknown Source)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRoot=
Region(HConnectionManager.java:931)
>
> > Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException:
> > java.lang.NullPointerException
>
> There is something wrong with locating the region server who is
> holding the ROOT region. Can you type "zk_dump" in hbase shell, and
> let us know the result?
>
> It will look like some thing like this:
>
> hbase(main):007:0> zk_dump
>
> HBase tree in ZooKeeper is rooted at /hbase
>  Cluster up? true
>  In safe mode? false
>  Master address: 172.16.80.26:60000
>  Region server holding ROOT: 172.16.80.27:60020
>  Region servers:
>    - 172.16.80.27:60020
>    - 172.16.80.29:60020
>    - 172.16.80.28:60020
>
>
>
> Thanks,
>
> --
> Tatsuya Kawano (Mr.)
> Tokyo, Japan
>
>
>
> On Sat, Oct 24, 2009 at 12:56 PM, =E6=A2=81=E6=99=AF=E6=98=8E wrote:
> > hi, i failed to connect a remote hbase server with java api , i added t=
he
> > conf from hbase and hadoop to HbaseConfiguration.
> > hbase shell can work no problem in remote server.
> > when i use java api to connect the remote hbase,get this error
> > at first i think if the centos system closes some ports should be open?
> > and i open the 2181 and 2888 ,3888,60010,60030 ,and hadoop server port
> ,but
> > it still get this error
> > or something else i didnt notice. thanks for any help.
> >
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:zookeeper.version=3D3.2.0--1, built on 05/15/2009 06:05 GMT
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client environment:host.nam=
e
> > =3Dubuntu1
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:java.version=3D1.6.0_16
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:java.vendor=3DSun Microsystems Inc.
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:java.home=3D/usr/lib/jvm/java-6-sun-1.6.0.16/jre
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> >
> environment:java.class.path=3D/home/futureha/download/apache-tomcat-6.0.2=
0/bin/bootstrap.jar:/usr/lib/jvm/java-6-sun-1.6.0.16/lib/tools.jar
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> >
> environment:java.library.path=3D/usr/lib/jvm/java-6-sun-1.6.0.16/bin:/hom=
e/futureha/download/apache-tomcat-6.0.20/bin
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> >
> environment:java.io.tmpdir=3D/home/futureha/download/apache-tomcat-6.0.20=
/temp
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:java.compiler=3D<NA>
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client environment:os.name
> =3DLinux
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> environment:os.arch=3Di386
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:os.version=3D2.6.28-15-generic
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client environment:user.nam=
e
> > =3Dfutureha
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:user.home=3D/home/futureha
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Client
> > environment:user.dir=3D/home/futureha/download/apache-tomcat-6.0.20/bin
> > 09/10/24 11:33:36 INFO zookeeper.ZooKeeper: Initiating client connectio=
n,
> > host=3D222.73.x.x:2181 sessionTimeout=3D60000
> >
> watcher=3Dorg.apache.hadoop.hbase.client.HConnectionManager$ClientZKWatch=
er@1fecaeb
> > 09/10/24 11:33:36 INFO zookeeper.ClientCnxn:
> zookeeper.disableAutoWatchReset
> > is false
> > 09/10/24 11:33:36 INFO zookeeper.ClientCnxn: Attempting connection to
> server
> > /222.73.x.x:2181
> > 09/10/24 11:33:36 INFO zookeeper.ClientCnxn: Priming connection to
> > java.nio.channels.SocketChannel[connected
> > local=3D/192.168.1.103:52693remote=3D/222.73.x.x:2181]
> > 09/10/24 11:33:36 INFO zookeeper.ClientCnxn: Server connection successf=
ul
> > java.lang.reflect.UndeclaredThrowableException
> >    at $Proxy11.getRegionInfo(Unknown Source)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRoot=
Region(HConnectionManager.java:931)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:573)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:549)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
onInMeta(HConnectionManager.java:623)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:582)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:549)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
onInMeta(HConnectionManager.java:623)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:586)
> >    at
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegi=
on(HConnectionManager.java:549)
> >    at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:125)
> >    at com.soko.hbase.tool.HbaseUtil.hasThisRow(HbaseUtil.java:528)
> >    at com.soko.manage.v4.UserManV4.hasThisUser(UserManV4.java:27)
> >    at
> com.soko.blog.action.login.UserManager.register(UserManager.java:77)
> >    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >    at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
> >    at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
> >    at java.lang.reflect.Method.invoke(Method.java:597)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActio=
nInvocation.java:440)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultA=
ctionInvocation.java:279)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:242)
> >    at
> >
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercep=
t(DefaultWorkflowInterceptor.java:163)
> >    at
> >
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Met=
hodFilterInterceptor.java:87)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(Valid=
ationInterceptor.java:249)
> >    at
> >
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor=
.doIntercept(AnnotationValidationInterceptor.java:68)
> >    at
> >
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Met=
hodFilterInterceptor.java:87)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(=
ConversionErrorInterceptor.java:122)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(Par=
ametersInterceptor.java:195)
> >    at
> >
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Met=
hodFilterInterceptor.java:87)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(Par=
ametersInterceptor.java:195)
> >    at
> >
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Met=
hodFilterInterceptor.java:87)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept=
(StaticParametersInterceptor.java:148)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInte=
rceptor.java:93)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUpload=
Interceptor.java:235)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(Mode=
lDrivenInterceptor.java:89)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercep=
t(ScopedModelDrivenInterceptor.java:128)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(P=
rofilingActivationInterceptor.java:104)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(D=
ebuggingInterceptor.java:267)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(Chainin=
gInterceptor.java:126)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(Prepar=
eInterceptor.java:138)
> >    at
> >
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Met=
hodFilterInterceptor.java:87)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterce=
ptor.java:148)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(Servlet=
ConfigInterceptor.java:164)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInter=
ceptor.java:128)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept=
(ExceptionMappingInterceptor.java:176)
> >    at
> >
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvoc=
ation.java:236)
> >    at
> >
> org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:=
52)
> >    at
> >
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:46=
8)
> >    at
> >
> org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteO=
perations.java:77)
> >    at
> >
> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doF=
ilter(StrutsPrepareAndExecuteFilter.java:76)
> >    at
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
> >    at
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
> >    at
> >
> filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.ja=
va:122)
> >    at
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
> >    at
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
> >    at
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve=
.java:233)
> >    at
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve=
.java:191)
> >    at
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:=
128)
> >    at
> >
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:=
102)
> >    at
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.j=
ava:109)
> >    at
> >
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:29=
3)
> >    at
> org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
> >    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:29=
1)
> >    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
> >    at
> >
> org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:6=
98)
> >    at
> >
> org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.j=
ava:891)
> >    at
> >
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.=
java:690)
> >    at java.lang.Thread.run(Thread.java:619)
> > Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException:
> > java.lang.NullPointerException
> >
> >    at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:723=
)
> >    at
> > org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:328)
> >    ... 85 more
> >
>

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