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From Mich Talebzadeh <mich.talebza...@gmail.com>
Subject Re: Loading data into Hbase table throws NoClassDefFoundError: org/apache/htrace/Trace error
Date Sun, 02 Oct 2016 07:52:48 GMT
Thanks Ben

The thing is I am using Spark 2 and no stack from CDH!

Is this approach to reading/writing to Hbase specific to Cloudera?





Dr Mich Talebzadeh



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On 1 October 2016 at 23:39, Benjamin Kim <bbuild11@gmail.com> wrote:

> Mich,
>
> I know up until CDH 5.4 we had to add the HTrace jar to the classpath to
> make it work using the command below. But after upgrading to CDH 5.7, it
> became unnecessary.
>
> echo "/opt/cloudera/parcels/CDH/jars/htrace-core-3.2.0-incubating.jar" >>
> /etc/spark/conf/classpath.txt
>
> Hope this helps.
>
> Cheers,
> Ben
>
>
> On Oct 1, 2016, at 3:22 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com>
> wrote:
>
> Trying bulk load using Hfiles in Spark as below example:
>
> import org.apache.spark._
> import org.apache.spark.rdd.NewHadoopRDD
> import org.apache.hadoop.hbase.{HBaseConfiguration, HTableDescriptor}
> import org.apache.hadoop.hbase.client.HBaseAdmin
> import org.apache.hadoop.hbase.mapreduce.TableInputFormat
> import org.apache.hadoop.fs.Path;
> import org.apache.hadoop.hbase.HColumnDescriptor
> import org.apache.hadoop.hbase.util.Bytes
> import org.apache.hadoop.hbase.client.Put;
> import org.apache.hadoop.hbase.client.HTable;
> import org.apache.hadoop.hbase.mapred.TableOutputFormat
> import org.apache.hadoop.mapred.JobConf
> import org.apache.hadoop.hbase.io.ImmutableBytesWritable
> import org.apache.hadoop.mapreduce.Job
> import org.apache.hadoop.mapreduce.lib.input.FileInputFormat
> import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat
> import org.apache.hadoop.hbase.KeyValue
> import org.apache.hadoop.hbase.mapreduce.HFileOutputFormat
> import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles
>
> So far no issues.
>
> Then I do
>
> val conf = HBaseConfiguration.create()
> conf: org.apache.hadoop.conf.Configuration = Configuration:
> core-default.xml, core-site.xml, mapred-default.xml, mapred-site.xml,
> yarn-default.xml, yarn-site.xml, hbase-default.xml, hbase-site.xml
> val tableName = "testTable"
> tableName: String = testTable
>
> But this one fails:
>
> scala> val table = new HTable(conf, tableName)
> java.io.IOException: java.lang.reflect.InvocationTargetException
>   at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(
> ConnectionFactory.java:240)
>   at org.apache.hadoop.hbase.client.ConnectionManager.createConnection(
> ConnectionManager.java:431)
>   at org.apache.hadoop.hbase.client.ConnectionManager.createConnection(
> ConnectionManager.java:424)
>   at org.apache.hadoop.hbase.client.ConnectionManager.
> getConnectionInternal(ConnectionManager.java:302)
>   at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:185)
>   at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:151)
>   ... 52 elided
> Caused by: java.lang.reflect.InvocationTargetException: java.lang.NoClassDefFoundError:
> org/apache/htrace/Trace
>   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>   at sun.reflect.NativeConstructorAccessorImpl.newInstance(
> NativeConstructorAccessorImpl.java:62)
>   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(
> DelegatingConstructorAccessorImpl.java:45)
>   at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
>   at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(
> ConnectionFactory.java:238)
>   ... 57 more
> Caused by: java.lang.NoClassDefFoundError: org/apache/htrace/Trace
>   at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(
> RecoverableZooKeeper.java:216)
>   at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:419)
>   at org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(
> ZKClusterId.java:65)
>   at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(
> ZooKeeperRegistry.java:105)
>   at org.apache.hadoop.hbase.client.ConnectionManager$
> HConnectionImplementation.retrieveClusterId(ConnectionManager.java:905)
>   at org.apache.hadoop.hbase.client.ConnectionManager$
> HConnectionImplementation.<init>(ConnectionManager.java:648)
>   ... 62 more
> Caused by: java.lang.ClassNotFoundException: org.apache.htrace.Trace
>
> I have got all the jar files in spark-defaults.conf
>
> spark.driver.extraClassPath      /home/hduser/jars/ojdbc6.jar:/
> home/hduser/jars/jconn4.jar:/home/hduser/jars/hbase-client-
> 1.2.3.jar:/home/hduser/jars/hbase-server-1.2.3.jar:/home/
> hduser/jars/hbase-common-1.2.3.jar:/home/hduser/jars/hbase-
> protocol-1.2.3.jar:/home/hduser/jars/htrace-core-3.0.4.
> jar:/home/hduser/jars/hive-hbase-handler-2.1.0.jar
> spark.executor.extraClassPath    /home/hduser/jars/ojdbc6.jar:/
> home/hduser/jars/jconn4.jar:/home/hduser/jars/hbase-client-
> 1.2.3.jar:/home/hduser/jars/hbase-server-1.2.3.jar:/home/
> hduser/jars/hbase-common-1.2.3.jar:/home/hduser/jars/hbase-
> protocol-1.2.3.jar:/home/hduser/jars/htrace-core-3.0.4.
> jar:/home/hduser/jars/hive-hbase-handler-2.1.0.jar
>
>
> and also in Spark shell where I test the code
>
>  --jars /home/hduser/jars/hbase-client-1.2.3.jar,/home/hduser/
> jars/hbase-server-1.2.3.jar,/home/hduser/jars/hbase-common-
> 1.2.3.jar,/home/hduser/jars/hbase-protocol-1.2.3.jar,/
> home/hduser/jars/htrace-core-3.0.4.jar,/home/hduser/jars/
> hive-hbase-handler-2.1.0.jar'
>
> So any ideas will be appreciated.
>
> Thanks
>
> Dr Mich Talebzadeh
>
>
> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
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>
>
> http://talebzadehmich.wordpress.com
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
>
>

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