[METRON-1295] Unable to Configure Logging for REST API

• Type: Bug
• Status: Done
• Priority: Major
• Resolution: Done
• Fix Version/s: 0.4.2
• Assignee: Nick Allen
• Reporter: Nick Allen
• Created: 03/Nov/17 20:06
• Updated: 15/Dec/17 17:01
• Resolved: 15/Dec/17 17:01

Description

I have not been able to configure logging for the REST API. To replicate, create a log4j configuration file, then add the following to "Metron JVM Flags" in Ambari > Metron > Config.

-Dlog4j.debug -Dlog4j.configuration=file:/usr/metron/0.4.2/config/log4j.properties

This will result in the following exception when Log4j initializes.

log4j: Using URL [file:/usr/metron/0.4.2/config/log4j.properties] for automatic log4j configuration.
log4j: Reading configuration from URL file:/usr/metron/0.4.2/config/log4j.properties
log4j: Parsing for [root] with value=[INFO, file].
log4j: Level token is [INFO].
log4j: Category root set to INFO
log4j: Parsing appender named "file".
log4j:ERROR A "org.apache.log4j.RollingFileAppender" object is not assignable to a "org.apache.hadoop.hbase.shaded.org.apache.log4j.Appender" variable.
log4j:ERROR The class "org.apache.hadoop.hbase.shaded.org.apache.log4j.Appender" was loaded by
log4j:ERROR [sun.misc.Launcher$AppClassLoader@5c647e05] whereas object of type
log4j:ERROR "org.apache.log4j.RollingFileAppender" was loaded by [sun.misc.Launcher$AppClassLoader@5c647e05].
log4j:ERROR Could not instantiate appender named "file".
log4j: Finished configuring.

Issue Links

• links to: GitHub Pull Request #828