Hive INSERT OVERWRITE zeigt Fehler

Question

Ich arbeite an einem Beispiel für die Integration von HBase-0.98.19 mit Hive-1.2.1. Ich habe eine Tabelle in hbase erstellt mit dem Befehl

CREATE TABLE hbase_table_emp(id int, name string, role string) 
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH SERDEPROPERTIES ("hbase.columns.mapping" =  ":key,cf1:name,cf1:role") 
TBLPROPERTIES ("hbase.table.name" = "emp"); 

Dann habe ich ‚testemp‘ erstellt für Daten ‚hbase_table_emp‘ importieren. Der Code unten zeigt die Methode des "testemp Tisch

create table testemp(id int, name string, role string) row format delimited fields terminated by '\t'; 
load data local inpath '/home/hduser/sample.txt' into table testemp; 
select * from testemp; 

Bis jetzt zu schaffen, funktioniert alles einwandfrei. Aber wenn ich den Befehl ausführen insert overwrite table hbase_table_emp select * from testemp;

bekomme ich folgende Fehlermeldung: -

hive> insert overwrite table hbase_table_emp select * from testemp; Query ID = hduser_20160613131557_ddef0b47-a773-477b-94d2-5cc070eb0de6 Total jobs = 1 Launching Job 1 out of 1 Number of reduce tasks is set to 0 since there's no reduce operator java.io.IOException: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.IllegalArgumentException: Must specify table name at org.apache.hadoop.hive.ql.exec.FileSinkOperator.checkOutputSpecs(FileSinkOperator.java:1117) at org.apache.hadoop.hive.ql.io.HiveOutputFormatImpl.checkOutputSpecs(HiveOutputFormatImpl.java:67) at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:564) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:432) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293) at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:562) at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:557) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:557) at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:548) at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.execute(ExecDriver.java:431) at org.apache.hadoop.hive.ql.exec.mr.MapRedTask.execute(MapRedTask.java:137) at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160) at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:88) at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1653) at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1412) at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1195) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1059) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1049) at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:213) at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:165) at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:376) at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:736) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136) Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.IllegalArgumentException: Must specify table name at org.apache.hadoop.hive.ql.exec.FileSinkOperator.createHiveOutputFormat(FileSinkOperator.java:1139) at org.apache.hadoop.hive.ql.exec.FileSinkOperator.checkOutputSpecs(FileSinkOperator.java:1114) ... 37 more Caused by: java.lang.IllegalArgumentException: Must specify table name at org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputFormat.java:193) at org.apache.hive.common.util.ReflectionUtil.setConf(ReflectionUtil.java:101) at org.apache.hive.common.util.ReflectionUtil.newInstance(ReflectionUtil.java:87) at org.apache.hadoop.hive.ql.io.HiveFileFormatUtils.getHiveOutputFormat(HiveFileFormatUtils.java:277) at org.apache.hadoop.hive.ql.io.HiveFileFormatUtils.getHiveOutputFormat(HiveFileFormatUtils.java:267) at org.apache.hadoop.hive.ql.exec.FileSinkOperator.createHiveOutputFormat(FileSinkOperator.java:1137) ... 38 more Job Submission failed with exception 'java.io.IOException(org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.IllegalArgumentException: Must specify table name)' FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask `

PS: Ich habe hbase.jar, zookeeper.jar und guava.jar im CLASSPATH enthalten.

Vielen Dank im Voraus.

Answer 1

Für die Hive HBase-Integration müssen Sie zum Einfügen von Daten in die Tabelle hbase auch die Datei hbase.mapred.output.outputtable in den TBLPROPERTIES angeben.

Hive HBase Integration

The hbase.mapred.output.outputtable property is optional; it's needed if you plan to insert data to the table (the property is used by hbase.mapreduce.TableOutputFormat)

Also für Ihre Tabelle müssen Sie folgend ausführen:

ALTER TABLE table_name SET TBLPROPERTIES ("hbase.mapred.output.outputtable" = "emp");