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Effective in version 10.4.0, you can get aggregated logs for deployed mappings that run in the Hadoop environment.
You can collect the aggregated cluster logs for a mapping based on the job ID in the Monitoring tool or by using the infacmd ms fetchAggregatedClusterLogs command. You can get a .zip or tar.gz file of the aggregated cluster logs for a mapping based on the job ID and write the compressed aggregated log file to a target directory.