Worker Heap Memory Size: The environment variable TAJO_WORKER_HEAPSIZE in conf/tajo-env.sh allow Tajo Worker to use the specified heap memory size. If you want to ADJUST heap memory size, set TAJO_WORKER_HEAPSIZE variable in conf/tajo-env.

sh with a proper size as FOLLOWS:

TAJO_WORKER_HEAPSIZE=8000

The default size is 1000 (1GB).

Temporary Data DIRECTORY: TajoWorker stores temporary data on local FILE system due to out-of-core algorithms. It is possible to specify one or more temporary data directories where temporary data will be stored.

Maximum number of parallel running tasks for each worker: Each worker can execute multiple tasks at a time. Tajo allows USERS to specify the maximum number of parallel running tasks for each worker.

Worker Heap Memory Size: The environment variable TAJO_WORKER_HEAPSIZE in conf/tajo-env.sh allow Tajo Worker to use the specified heap memory size. If you want to adjust heap memory size, set TAJO_WORKER_HEAPSIZE variable in conf/tajo-env.

sh with a proper size as follows:

TAJO_WORKER_HEAPSIZE=8000

The default size is 1000 (1GB).

Temporary Data Directory: TajoWorker stores temporary data on local file system due to out-of-core algorithms. It is possible to specify one or more temporary data directories where temporary data will be stored.

Maximum number of parallel running tasks for each worker: Each worker can execute multiple tasks at a time. Tajo allows users to specify the maximum number of parallel running tasks for each worker.