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From Jimmy Xiang <jxi...@cloudera.com>
Subject Re: ERROR: org.apache.hadoop.hbase.MasterNotRunningException: Retried 7 Times
Date Mon, 13 Feb 2012 19:35:45 GMT
In this case, you may just use the standalone mode.  You can follow the
quick start step by step.

The default zookeeper port is 2181, you don't need to configure it.


On Mon, Feb 13, 2012 at 11:28 AM, Bing Li <lblabs@gmail.com> wrote:

> Dear Jimmy,
>
> I am a new user of HBase. My experiences in HBase and Hadoop is very
> limited. I just tried to follow some books, such as Hadoop/HBase the
> Definitive Guide. However, I still got some problems.
>
> What I am trying to do is just to set up a pseudo distributed HBase
> environment on a single node. After that, I will start my system
> programming in Java. I hope I could deploy the system in fully distributed
> mode when my system is done.
>
> So what I am configuring is very simple. Do I need to set up the zookeeper
> port in hbase-site.xml?
>
> Thanks so much!
>
> Best,
> Bing
>
>
> On Tue, Feb 14, 2012 at 3:16 AM, Jimmy Xiang <jxiang@cloudera.com> wrote:
>
>> Have you restarted your HBase after the change?  What's the zookeeper
>> port does your HMaster use?
>>
>> Can you run the following to checkout where is your HMaster as below?
>>
>> hbase zkcli
>>   then:  get /hbase/master
>>  It should show you master location.
>>
>> It seems you have a distributed installation.  How many regionservers do
>> you have?  Can you check your
>> master web UI to make sure all look fine.
>>
>> Thanks,
>> Jimmy
>>
>>
>> On Mon, Feb 13, 2012 at 10:51 AM, Bing Li <lblabs@gmail.com> wrote:
>>
>>> Dear Jimmy,
>>>
>>> Thanks so much for your reply!
>>>
>>> I didn't set up the zookeeper.quorom. After getting your email, I made a
>>> change. Now my hbase-site.xml is as follows.
>>>
>>> <configuration>
>>>   <property>
>>>     <name>hbase.rootdir</name>
>>>     <value>hdfs://localhost:9000/hbase</value>
>>>   </property>
>>>   <property>
>>>     <name>dfs.replication</name>
>>>     <value>1</value>
>>>   </property>
>>>   <property>
>>>     <name>hbase.cluster.distributed</name>
>>>     <value>true</value>
>>>   </property>
>>>   <property>
>>>     <name>hbase.zookeeper.quorum</name>
>>>     <value>localhost</value>
>>>   </property>
>>> </configuration>
>>>
>>> The previous error is still existed. I feel weird why HBase developers
>>> cannot provide a reliable description about their work.
>>>
>>> Best,
>>> Bing
>>>
>>>
>>> On Tue, Feb 14, 2012 at 2:16 AM, Jimmy Xiang <jxiang@cloudera.com>wrote:
>>>
>>>> What's your hbase.zookeeper.quorom configuration?   You can check out
>>>> this quick start guide:
>>>>
>>>> http://hbase.apache.org/book/quickstart.html
>>>>
>>>> Thanks,
>>>> Jimmy
>>>>
>>>>
>>>> On Mon, Feb 13, 2012 at 10:09 AM, Bing Li <lblabs@gmail.com> wrote:
>>>>
>>>>> Dear all,
>>>>>
>>>>> After searching on the Web and asking for help from friends, I noticed
>>>>> that
>>>>> the pseudo distributed configuration in the book, HBase the Definitive
>>>>> Guide, was not complete. Now the ZooKeeper related exception is fixed.
>>>>> However, I got another error when typing "status" in the HBase shell.
>>>>>
>>>>>    ERROR: org.apache.hadoop.hbase.MasterNotRunningException: Retried
7
>>>>> Times
>>>>>
>>>>> I am trying to fix it myself. Your help is highly appreciated.
>>>>>
>>>>> Thanks so much!
>>>>> Bing Li
>>>>>
>>>>> On Mon, Feb 13, 2012 at 5:00 AM, Bing Li <lblabs@gmail.com> wrote:
>>>>>
>>>>> > Dear all,
>>>>> >
>>>>> > I am a new learner of HBase. I tried to set up my HBase on a
>>>>> > pseudo-distributed HDFS.
>>>>> >
>>>>> > After starting HDFS by running ./start-dfs.sh and ./start-hbase.sh,
I
>>>>> > started the HBase shell.
>>>>> >
>>>>> >    ./hbase shell
>>>>> >
>>>>> > It was started properly. However, when I typed the command, status,
>>>>> as
>>>>> > follows.
>>>>> >
>>>>> >    hbase(main):001:0> status
>>>>> >
>>>>> > It got the following exception. Since I had very limited experiences
>>>>> to
>>>>> > use HBase, I could not figure out what the problem was.
>>>>> >
>>>>> > SLF4J: Class path contains multiple SLF4J bindings.
>>>>> > SLF4J: Found binding in
>>>>> >
>>>>> [jar:file:/opt/hbase-0.92.0/lib/slf4j-log4j12-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>>>>> > SLF4J: Found binding in
>>>>> >
>>>>> [jar:file:/opt/hadoop-1.0.0/lib/slf4j-log4j12-1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>>>>> > SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for
an
>>>>> > explanation.
>>>>> > 12/02/13 04:34:01 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper
>>>>> exists
>>>>> > failed after 3 retries
>>>>> > 12/02/13 04:34:01 WARN zookeeper.ZKUtil: hconnection Unable to set
>>>>> watcher
>>>>> > on znode /hbase/master
>>>>> > org.apache.zookeeper.KeeperException$ConnectionLossException:
>>>>> > KeeperErrorCode = ConnectionLoss for /hbase/master
>>>>> >         at
>>>>> > org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
>>>>> >         at
>>>>> > org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>>>>> >         at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1003)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:154)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndCheckExists(ZKUtil.java:226)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:76)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:580)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:569)
>>>>> >         at
>>>>> >
>>>>> org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:186)
>>>>> >         at
>>>>> > org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:98)
>>>>> >         at
>>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>>>> > Method)
>>>>> >         at
>>>>> >
>>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>>>>> >         at
>>>>> >
>>>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>>>>> >         at
>>>>> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>>>> >         at
>>>>> >
>>>>> org.jruby.javasupport.JavaConstructor.newInstanceDirect(JavaConstructor.java:275)
>>>>> >         at
>>>>> >
>>>>> org.jruby.java.invokers.ConstructorInvoker.call(ConstructorInvoker.java:91)
>>>>> >         at
>>>>> >
>>>>> org.jruby.java.invokers.ConstructorInvoker.call(ConstructorInvoker.java:178)
>>>>> >         at
>>>>> >
>>>>> org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:322)
>>>>> >         at
>>>>> >
>>>>> org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:178)
>>>>> >         at
>>>>> >
>>>>> org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:182)
>>>>> >         at
>>>>> >
>>>>> org.jruby.java.proxies.ConcreteJavaProxy$2.call(ConcreteJavaProxy.java:47)
>>>>> >         at
>>>>> >
>>>>> org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:322)
>>>>> >
>>>>> > Could you please give me a hand? Thanks so much!
>>>>> >
>>>>> > Best regards,
>>>>> > Bing
>>>>> >
>>>>> >
>>>>> >
>>>>>
>>>>
>>>>
>>>
>>
>

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