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spark:running-spark-on-single-machine-or-on-cluster [2022/12/14 12:53] straka [Memory Specification] |
spark:running-spark-on-single-machine-or-on-cluster [2022/12/14 12:54] straka [Memory Specification] |
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==== Memory Specification ==== | ==== Memory Specification ==== | ||
- | TL;DR: Good default is '' | + | TL;DR: Good default is '' |
The memory for each worker is specified using the following format: < | The memory for each worker is specified using the following format: < | ||
+ | |||
The Spark memory limits the Java heap, and half of it is reserved for memory storage of cached RDDs. The second value sets a memory limit of every Python process and is by default set to '' | The Spark memory limits the Java heap, and half of it is reserved for memory storage of cached RDDs. The second value sets a memory limit of every Python process and is by default set to '' | ||