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From: Yang <teddyyyy123@gmail.com>
Date: Tue, 3 Feb 2015 11:44:23 -0800
Message-ID: 
 <CAAnh3__9MbzRCUHEAYpdy2keWJVwsrHrN-aDHJs8p-XH=jrGMw@mail.gmail.com>
Subject: Re: java API bug ? --- client.HTable init unnecessarily tries hadoop
To: user@hbase.apache.org
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the rootdir value is http://my-hbase-master.com:8020
<http://my-hbase-master.com:8020/apps/hbase/data/lib>/apps/hbase/data


I'm using 0.98.0

On Wed, Jan 28, 2015 at 4:14 PM, Ted Yu <yuzhihong@gmail.com> wrote:

> Is namenode running on my-hbase-master.com
> <http://my-hbase-master.com:8020/apps/hbase/data/lib> ?
>
> Which hbase release are you using ?
>
> I assume hbase-site.xml is in the classpath of your app. What's the value
> for hbase.rootdir ?
>
> Cheers
>
> On Wed, Jan 28, 2015 at 4:10 PM, Yang <teddyyyy123@gmail.com> wrote:
>
> > we have a standalone java code, which simply tries to insert one record
> > into an existing hbase table.
> >
> > here it got the following error:but it is able to proceed. so this means
> > the following operation which triggered the error is useless ??? if so,
> > shouldn't the useless code be removed?
> >
> > thanks
> > Yang
> >
> > 2015-01-28 16:06:05,769 [pool-2-thread-1] WARN
> >  org.apache.hadoop.hbase.util.DynamicClassLoader - Failed to identify the
> > fs of dir hdfs://my-hbase-master.com:8020/apps/hbase/data/lib, ignored
> > java.io.IOException: No FileSystem for scheme: hdfs
> > at
> org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2385)
> > at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2392)
> > at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89)
> > at
> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2431)
> > at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2413)
> > at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368)
> > at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
> > at
> >
> >
> org.apache.hadoop.hbase.util.DynamicClassLoader.<init>(DynamicClassLoader.java:104)
> > at
> >
> >
> org.apache.hadoop.hbase.protobuf.ProtobufUtil.<clinit>(ProtobufUtil.java:201)
> > at org.apache.hadoop.hbase.ClusterId.parseFrom(ClusterId.java:64)
> > at
> >
> >
> org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(ZKClusterId.java:69)
> > at
> >
> >
> org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(ZooKeeperRegistry.java:83)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.retrieveClusterId(HConnectionManager.java:857)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:662)
> > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> > at
> >
> >
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> > at
> >
> >
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> > at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:414)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:393)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:274)
> > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:188)
> > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:150)
> > at bdp.kafka.connector.BDPConsumer.run(BDPConsumer.java:58)
> >
> >
> >
> >
> >     Configuration config = HBaseConfiguration.create();
> >     HTable table = new HTable(config, hTableName);
> >
>

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