ls: Permission denied

[#1]

Hi, i am new with hadoop,

I have the following errors when i try to run the command hdfs dfs -ls on a specific directory:

[t_hdhusr@node01 ~]$ hdfs dfs -ls /user/T_HDHUSR

log4j:ERROR setFile(null,true) call failed.

java.io.FileNotFoundException: /var/log/hadoop/t_hdhusr/hadoop-mapreduce.jobsummary.gz (No such file or directory)

at java.io.FileOutputStream.open0(Native Method)

at java.io.FileOutputStream.open(FileOutputStream.java:270)

at java.io.FileOutputStream.<init>(FileOutputStream.java:213)

at java.io.FileOutputStream.<init>(FileOutputStream.java:133)

at org.apache.log4j.FileAppender.setFile(FileAppender.java:294)

at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:207)

at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:165)

at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:307)

at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:172)

at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:104)

at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:842)

at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:768)

at org.apache.log4j.PropertyConfigurator.parseCatsAndRenderers(PropertyConfigurator.java:672)

at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:516)

at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:580)

at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)

at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)

at org.slf4j.impl.Log4jLoggerFactory.<init>(Log4jLoggerFactory.java:66)

at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72)

at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45)

at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)

at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)

at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)

at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)

at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)

at org.apache.hadoop.fs.FsShell.<clinit>(FsShell.java:48)

ls: Permission denied: user=t_hdhusr, access=READ_EXECUTE, inode="/user/T_HDHUSR":T_HDHUSR:hdfs:drwx------

Thank you in advance for your help.

[#2 · Accepted solution]

@Koffi

This is a permission issue which can be resolved by changing the access using the hdfs user who happens to be the HDFS superuser

The error Permission denied: user=t_hdhusr, access=READ_EXECUTE, inode="/user/T_HDHUSR":T_HDHUSR:hdfs:drwx------

As the root user

# su- hdfs
$ hdfs dfs -chown -R  t_hdhusr:hdfs /user/T_HDHUSR

It seems t_hdhuser and T_HDHUSR is not interpreted as the same

Now running the below should succeed

$ hdfs dfs -ls /user/T_HDHUSR

HTH

[#3]

thank you for your answer.