This is the documentation for CDH 5.0.x. Documentation for other versions is available at Cloudera Documentation.

Appendix E - Task-controller and Container-executor Error Codes

The task-controller and container-executor programs are setuid binaries that Hadoop uses internally to run tasks under the Unix account of the user who submitted the job. For more information about these programs, see Appendix B - Information about Other Hadoop Security Programs.

When you set up a secure cluster for the first time and debug problems with it, the task-controller or container-executor may encounter errors. These programs communicate these errors to the TaskTracker or NodeManager daemon via numeric error codes which will appear in the TaskTracker or NodeManager logs respectively (/var/log/hadoop-mapreduce or /var/log/hadoop-yarn). The following sections list the possible numeric error codes with descriptions of what they mean:
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