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https://issues.apache.org/jira/browse/HDFS-14825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Akira Ajisaka resolved HDFS-14825.
----------------------------------
    Fix Version/s: 3.3.0
     Hadoop Flags: Reviewed
       Resolution: Fixed

Merged into trunk. Thank you [~tasanuma], [~soyamiyoshi], and [~xkrogen].

> [Dynamometer] Workload doesn't start unless an absolute path of Mapper class 
> given
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-14825
>                 URL: https://issues.apache.org/jira/browse/HDFS-14825
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Soya Miyoshi
>            Assignee: Takanobu Asanuma
>            Priority: Major
>             Fix For: 3.3.0
>
>
> When starting a workload by start-workload.sh, unless an absolute path of 
> Mapper is given, the workload doesn't start.
>  
> {code:java}
> $ hadoop/tools/dynamometer/dynamometer-workload/bin/start-workload.sh - \
> Dauditreplay.input-path=hdfs:///user/souya/input/audit  \
> -Dauditreplay.output-path=hdfs:///user/souya/results/ \
> -Dauditreplay.num-threads=50 -Dauditreplay.log-start-time.ms=5 \
> -nn_uri hdfs://namenode_address:port/ \
> -mapper_class_name AuditReplayMapper
> {code}
> results in
> {code:java}
> SLF4J: Defaulting to no-operation (NOP) logger implementation
> SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further 
> details.
> Exception in thread "main" java.lang.ClassNotFoundException: Class 
> org.apache.hadoop.tools.dynamometer.workloadgenerator.AuditReplayMapper not 
> found
>       at 
> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2572)
>       at 
> org.apache.hadoop.tools.dynamometer.workloadgenerator.WorkloadDriver.getMapperClass(WorkloadDriver.java:183)
>       at 
> org.apache.hadoop.tools.dynamometer.workloadgenerator.WorkloadDriver.run(WorkloadDriver.java:127)
>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
>       at 
> org.apache.hadoop.tools.dynamometer.workloadgenerator.WorkloadDriver.main(WorkloadDriver.java:172)
> {code}



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