查看HBase应用调测结果

操作场景

HBase应用程序运行完成后，可直接通过运行结果查看应用程序运行情况，也可以通过HBase日志获取应用运行情况。

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