云服务器内容精选

  • 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