hadoop日志级别修改

相关工具：

[grid@h1 conf]$ hadoop daemonlog -h

USAGES:

java org.apache.hadoop.log.LogLevel -getlevel <host:port> <name>

java org.apache.hadoop.log.LogLevel -setlevel <host:port> <name> <level>

例如：

[grid@h1 conf]$ hadoop daemonlog -getlevel h1:50070 NameNode

Connecting to http://h1:50070/logLevel?log=NameNode
Submitted Log Name: NameNode

Log Class: org.apache.commons.logging.impl.Log4JLogger

Effective level: INFO

[grid@h1 conf]$ hadoop daemonlog -setlevel h1:50070 NameNode debug

Connecting to http://h1:50070/logLevel?log=NameNode&level=debug
Submitted Log Name: NameNode

Log Class: org.apache.commons.logging.impl.Log4JLogger

Submitted Level: debug

Setting Level to debug ...

Effective level: DEBUG