Troubleshooting HttpFS
About this task
Procedure
-
Edit the
log4j
properties file located at/opt/mapr/hadoop/hadoop-3.3.x/etc/hadoop/httpfs-log4j.properties
and insert the following lines to activate debug capabilities:log4j.logger.org.apache.hadoop.fs.http.server=DEBUG, httpfs log4j.logger.org.apache.hadoop.lib=DEBUG, httpfs log4j.logger.org.apache.hadoop.security.authentication.server=DEBUG, httpfs
-
Search the logs located at
/opt/mapr/hadoop/hadoop-3.3.x/logs
for the words ERROR or Exception.