MAPREDUCE服务 MRS-查看HBase应用调测结果:操作步骤

时间：2024-06-19 16:04:40

操作步骤

运行结果会有如下成功信息：

...
2020-01-09 10:43:49,338 INFO  [main] examples.HBaseExample: Entering dropTable.
2020-01-09 10:43:49,341 INFO  [main] client.HBaseAdmin: Started disable of hbase_sample_table
2020-01-09 10:43:50,080 INFO  [main] client.HBaseAdmin: Operation: DISABLE, Table Name: default:hbase_sample_table, procId: 41 completed
2020-01-09 10:43:50,550 INFO  [main] client.HBaseAdmin: Operation: DELETE, Table Name: default:hbase_sample_table, procId: 43 completed
2020-01-09 10:43:50,550 INFO  [main] examples.HBaseExample: Drop table successfully.
2020-01-09 10:43:50,550 INFO  [main] examples.HBaseExample: Exiting dropTable.
2020-01-09 10:43:50,550 INFO  [main] client.ConnectionImplementation: Closing master protocol: MasterService
2020-01-09 10:43:50,556 INFO  [main] examples.TestMain: -----------finish to test HBase API-------------------

在Windows环境运行样例代码时会出现下面的异常，但是不影响业务：

java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.

日志说明

日志级别默认为INFO，可以通过调整日志打印级别（DEBUG，INFO，WARN，ERROR，FATAL）来显示更详细的信息。可以通过修改log4j.properties文件来实现，如：

hbase.root.logger=INFO,console
log4j.logger.org.apache.zookeeper=INFO
#log4j.logger.org.apache.hadoop.fs.FSNamesystem=DEBUG
log4j.logger.org.apache.hadoop.hbase=INFO
# Make these two classes DEBUG-level. Make them DEBUG to see more zk debug.
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZKUtil=INFO
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher=INFO

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