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Property Name | Default | Meaning |
hama.appmaster.memory.mb | 100mb | The amount of memory used by the BSPApplicationMaster. The total amount of memory used by the ApplicationMaster is calculated as follows. memoryInMb = 3 * BSP_TASK_NUM + hama.appmaster.memory.mb. This is because the application master spawns 1-3 thread per launched task that each should take 1mb, plus a minimum of base memory usage of 100. If you face memory issues, you can set this to a higher value. |
Launching Hama on YARN
Ensure that copy yarn-site.xml in in HADOOP_CONF_DIR or YARN_CONF_DIR to HAMA_CONF_DIR. Because this configuration file is used to connect to the YARN. And $HAMA_HOME environment variable must be set.
Launch Hama application which is serialize printing example:
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