Hadoop setFile(null,true) call failed.

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原文地址：http://blog.163.com/jiayouweijiewj@126/blog/static/171232177201161510014562/

尊重原著

以下记录的是自己的hadoop集群遇到的问题及解决方法：

1、文件权限设置的问题：

错误提示：

[hadoop@sc706-26 bin]$ start-all.sh
starting namenode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-namenode-sc706-26.out
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-namenode-sc706-26.log (Permission denied)
at java.io.FileOutputStream.openAppend(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:177)
at java.io.FileOutputStream.<init>(FileOutputStream.java:102)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:290)
at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:164)
at org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:216)
at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:257)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:133)
192.168.153.91: starting datanode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-datanode-sc706-28.out
192.168.153.92: starting datanode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-datanode-sc706-29.out
192.168.153.90: starting datanode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-datanode-sc706-27.out
192.168.153.89: starting secondarynamenode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-secondarynamenode-sc706-26.out
starting jobtracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-jobtracker-sc706-26.out
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-jobtracker-sc706-26.log (Permission denied)
at java.io.FileOutputStream.openAppend(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:177)
at java.io.FileOutputStream.<init>(FileOutputStream.java:102)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:290)
at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:164)
at org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:216)
at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:257)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:133)
192.168.153.91: starting tasktracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-tasktracker-sc706-28.out
192.168.153.92: starting tasktracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-tasktracker-sc706-29.out
192.168.153.90: starting tasktracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-hadoop-tasktracker-sc706-27.out
解决方法：修改错误中提示的不能找到的logs里文件的权限，之后重启hadoop集群

[iyunv@sc706-26 logs]# chmod 777 hadoop-hadoop-namenode-sc706-26.log
[iyunv@