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courses:mapreduce-tutorial:managing-a-hadoop-cluster [2012/02/05 19:56] straka |
courses:mapreduce-tutorial:managing-a-hadoop-cluster [2013/02/08 14:35] popel Milan improved our Hadoop |
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| A Hadoop cluster is stopped: | A Hadoop cluster is stopped: | ||
| - | * after the timeout specified by '' | + | * after the timeout specified by '' |
| * when the '' | * when the '' | ||
| * using '' | * using '' | ||
| + | |||
| + | ===== Web interface ===== | ||
| + | |||
| + | The web interface provides a lot of useful information: | ||
| + | * running, failed and successfully completed jobs | ||
| + | * for running job, current progress and counters of the whole job and also of each mapper and reducer is available | ||
| + | * for any job, the counters and outputs of all mappers and reducers | ||
| + | * for any job, all Hadoop settings | ||
| ===== Killing running jobs ===== | ===== Killing running jobs ===== | ||
| - | Jobs running | + | Jobs running |
| + | < | ||
| + | |||
| + | The jobs running on a cluster are present in the web interface, or can be printed using | ||
| + | < | ||