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Neal Song 26ad8f8f34 [SPARK-30478][CORE][DOCS] Fix Memory Package documentation 
### What changes were proposed in this pull request?
update the doc of momery package

### Why are the changes needed?
From Spark 2.0, the storage memory also uses off heap memory. We update the doc here.
![memory manager](https://user-images.githubusercontent.com/3488126/72124682-9b35ce00-33a0-11ea-8cf9-301494974ef4.png)

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
No Tests Needed

Closes #27160 from sddyljsx/SPARK-30478.

Lead-authored-by: Neal Song <neal_song@126.com>
Co-authored-by: neal_song <neal_song@126.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-01-11 19:51:52 -08:00
..
benchmarks [SPARK-29576][CORE] Use Spark's CompressionCodec for Ser/Deser of MapOutputStatus 2019-10-23 18:17:37 -07:00
src [SPARK-30478][CORE][DOCS] Fix Memory Package documentation 2020-01-11 19:51:52 -08:00
pom.xml [INFRA] Reverts commit 56dcd79 and c216ef1 2019-12-16 19:57:44 -07:00