spark-instrumented-optimizer/core
DB Tsai fd899d6331 [SPARK-29576][CORE] Use Spark's CompressionCodec for Ser/Deser of MapOutputStatus
### What changes were proposed in this pull request?
Instead of using ZStd codec directly, we use Spark's CompressionCodec which wraps ZStd codec in a buffered stream to avoid overhead excessive of JNI call while trying to compress/decompress small amount of data.

Also, by using Spark's CompressionCodec, we can easily to make it configurable in the future if it's needed.

### Why are the changes needed?
Faster performance.

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

### How was this patch tested?
Existing tests.

Closes #26235 from dbtsai/optimizeDeser.

Lead-authored-by: DB Tsai <d_tsai@apple.com>
Co-authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-10-23 18:17:37 -07:00
..
benchmarks [SPARK-29576][CORE] Use Spark's CompressionCodec for Ser/Deser of MapOutputStatus 2019-10-23 18:17:37 -07:00
src [SPARK-29576][CORE] Use Spark's CompressionCodec for Ser/Deser of MapOutputStatus 2019-10-23 18:17:37 -07:00
pom.xml [SPARK-29296][BUILD][CORE] Remove use of .par to make 2.13 support easier; add scala-2.13 profile to enable pulling in par collections library separately, for the future 2019-10-03 08:56:08 -05:00