Hive HBase调整使用

Hive HBase整合使用

将Hive中的数据导入到HBase中

wiki上的介绍链接如下：

http://wiki.apache.org/hadoop/Hive/HBaseIntegration

各版本要求：

hadoop-0.20.2

hbase-0.20.3

hive-0.6.0（之前的版本都不支持）

zookeeper-3.3.0

确认目录下有这个jar包：

./hive-0.6.0/lib/hive_hbase-handler.jar

加载这个jar包启动hive：

单个hbase服务器的启动命令如下：

bin/hive --auxpath /home/hadoopuser/hive-0.6.0/lib/hive_hbase-handler.jar,/home/hadoopuser/hive-0.6.0/lib/hbase-0.20.3.jar -hiveconf hbase.master=master:60000

如果使用zookeeper为hbase集群选择一个master

bin/hive --auxpath /home/hadoopuser/hive-0.6.0/lib/hive_hbase-handler.jar,/home/hadoopuser/hive-0.6.0/lib/hbase-0.20.3.jar -hiveconf hbase.zookeeper.quorum=server1,server2,server3

举例子：

创建HBase

CREATE TABLE hbase_table_1(key int, value string)?

STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'

WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf1:val")

TBLPROPERTIES ("hbase.table.name" = "xyz");

hbase.table.name这项说明，在Hive这个表叫做 hbase_table_1 ，在HBase中这个表叫做 xyz。

hive> describe hbase_table_1;

key ? ? int ? ? from deserializer

value ? string ?from deserializer

Time taken: 0.225 seconds

hbase(main):001:0> describe 'xyz'

DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ENABLED

?{NAME => 'xyz', FAMILIES => [{NAME => 'cf1', COMPRESSION => 'NONE', VE true

?RSIONS => '3', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMORY =>

??'false', BLOCKCACHE => 'true'}]}

1 row(s) in 0.1040 seconds

hbase(main):002:0>

CREATE TABLE pokes (foo INT, bar STRING); ?

LOAD DATA LOCAL INPATH './examples/files/kv1.txt' OVERWRITE INTO TABLE pokes;?

INSERT OVERWRITE TABLE hbase_table_1 SELECT * FROM pokes WHERE foo=86;

1 楼 czwq2001 2011-08-04 我带hbase执行的时候出现以下异常，不带hbase是正常的
hive> select * from pokes where 1=1;
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
java.lang.IllegalArgumentException: Can not create a Path from an empty string
at org.apache.hadoop.fs.Path.checkPathArg(Path.java:82)
at org.apache.hadoop.fs.Path.<init>(Path.java:90)
at org.apache.hadoop.fs.Path.<init>(Path.java:50)
at org.apache.hadoop.mapred.JobClient.copyRemoteFiles(JobClient.java:554)
at org.apache.hadoop.mapred.JobClient.configureCommandLineOptions(JobClient.java:637)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:805)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:775)
at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:688)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:107)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:55)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:633)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:506)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:384)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:138)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:197)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:302)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Job Submission failed with exception 'java.lang.IllegalArgumentException(Can not create a Path from an empty string)'
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.ExecDriver

请问下怎么解决

Hive HBase调整使用

热点推荐