tag:blogger.com,1999:blog-8716531089719420013.post4994348652910295367..comments2024-01-15T11:45:52.649+05:30Comments on Big Data and Cloud Tips: Bulk loading data in HBasePraveen Sripatihttp://www.blogger.com/profile/11782284194201977787noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-8716531089719420013.post-65310177923610634582016-09-27T17:02:38.549+05:302016-09-27T17:02:38.549+05:30hi can someone plz help me to fix this error....
...hi can someone plz help me to fix this error....<br /><br /> Exception in thread "main" org.apache.hadoop.hbase.client.NoServerForRegionException: Unable to find region for NBAFinal2010,,99999999999999 after 10 tries.<br /> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:951)<br /> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:856)<br /> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:958)<br /> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:860)<br /> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:817)<br /> at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:234)<br /> at org.apache.hadoop.hbase.client.HTable.(HTable.java:174)<br /> at org.apache.hadoop.hbase.client.HTable.(HTable.java:133)<br /> at com.cloudera.examples.hbase.bulkimport.Driver.main(Driver.java:47)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<br /> at java.lang.reflect.Method.invoke(Method.java:498)<br /> at org.apache.hadoop.util.RunJar.run(RunJar.java:221)<br /> at org.apache.hadoop.util.RunJar.main(RunJar.java:136)<br /><br />Thanks in advancesaisrihttps://www.blogger.com/profile/07322226575556471392noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-42090578121528848182014-09-13T10:12:27.745+05:302014-09-13T10:12:27.745+05:30can you please let me know how you resolved this b...can you please let me know how you resolved this bug when u r executing the above program.as of now i am facing this issue.SudheerKumarhttps://www.blogger.com/profile/17461786329826547935noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-59840265825453105542014-08-05T18:44:46.264+05:302014-08-05T18:44:46.264+05:30Respected Sir
I want to read two hbase table sim...Respected Sir<br /><br /><br />I want to read two hbase table simultaneously and then in reducer i want to do UNION of output of two mapper<br /><br />I am providing sudo code which i want to do<br /><br />Class Test<br />{<br /><br />Class MapA extends TableMapper<br />{<br />map()<br />{<br />Logic That read Hbase Table A<br />context.write("A "+key,Value);<br />}<br />}<br /><br />Class MapB extends TableMapper<br />{<br />map()<br />{<br />Logic That read Hbase Table B<br />context.write("B "+key,Value);<br />}<br />}<br /><br />Class Reduce extends Reducer<br />{<br />ArrayList A;<br />ArrayList B;<br />reduce()<br />{<br />if(key contain "A")<br />A.add(KeyValue Pair)<br />else<br />B.add(KeyValue Pair)<br />}<br /><br />My Logic to union all the data<br />}<br /><br />main()<br />{<br />Job job = new Job(config,"Test");<br />TableMapReduceUtil.<br />initTableMapperJob(Table1, scan, Test.MapA.class, Text.class, Text.class, job);<br />TableMapReduceUtil.initTableMapperJob(Table2, scan, Test.MapB.class, Text.class, Text.class, job);<br />job.setReducerClass(Test.Reduce.class);<br /><br />}<br /><br />}<br /><br />can it be possible???<br /><br />if yes can u please provide example of it.<br /><br />Thank you.nil panchalhttps://www.blogger.com/profile/04775550187249258361noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-7505648298978254462014-06-09T18:57:47.802+05:302014-06-09T18:57:47.802+05:30Can we add an other HColumnEnum2.class to enumerat...Can we add an other HColumnEnum2.class to enumerate columns for a second column Family in the same Hbase table ?Anonymoushttps://www.blogger.com/profile/07498356700451868030noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-75728435344609783712014-02-25T07:15:41.755+05:302014-02-25T07:15:41.755+05:30This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/12747701711559570866noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-33813653789568518882013-08-19T04:16:19.460+05:302013-08-19T04:16:19.460+05:30I got the solution.
The classpath of some of the ...I got the solution. <br />The classpath of some of the JAR's imported were missing in the HADOOP_CLASSPATH.<br />After exporting the correct classpath the program works fine. <br /><br />Thanks. <br />mandar abnavehttps://www.blogger.com/profile/07818604310745524311noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-25694891657674750062013-08-18T16:37:46.247+05:302013-08-18T16:37:46.247+05:30Hi,
I tried every step given here.. I have this e...Hi, <br />I tried every step given here.. I have this error.. Can you please help. Thank you. <br /><br />Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration<br /> at Driver.main(Driver.java:37)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<br /> at java.lang.reflect.Method.invoke(Method.java:606)<br /> at org.apache.hadoop.util.RunJar.main(RunJar.java:160)<br />Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.HBaseConfiguration<br /> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)<br /> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)<br /> at java.security.AccessController.doPrivileged(Native Method)<br /> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)<br />mandar abnavehttps://www.blogger.com/profile/07818604310745524311noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-30188736727653179292013-07-19T01:58:05.474+05:302013-07-19T01:58:05.474+05:30Doesn't it work with HBase v. 0.95.1-hadoop1?
...Doesn't it work with HBase v. 0.95.1-hadoop1?<br /><br />The code gives me compile errors, it can't find HFileOutputFormat neither LoadIncrementalHFiles classesAnonymoushttps://www.blogger.com/profile/01441069118941126065noreply@blogger.comtag:blogger.com,1999:blog-8716531089719420013.post-16048597769481766272013-05-23T23:40:42.432+05:302013-05-23T23:40:42.432+05:30I get this error. Any ideas why I get this?
13/05...I get this error. Any ideas why I get this?<br /><br />13/05/23 11:07:27 INFO mapred.JobClient: Task Id : attempt_201210192138_0073_m_000000_0, Status : FAILED<br />java.lang.RuntimeException: java.lang.reflect.InvocationTargetException<br /> at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:128)<br /> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:605)<br /> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)<br /> at org.apache.hadoop.mapred.Child$4.run(Child.java:268)<br /> at java.security.AccessController.doPrivileged(Native Method)<br /> at javax.security.auth.Subject.doAs(Subject.java:396)<br /> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1332)<br /> at org.apache.hadoop.mapred.Child.main(Child.java:262)<br />Anonymousnoreply@blogger.com