Jungtaek Lim created SPARK-34383:
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Summary: Optimize WAL commit phase on SS
Key: SPARK-34383
URL: https://issues.apache.org/jira/browse/SPARK-34383
Project: Spark
Issue Type: Improvement
Components: Structured Streaming
Affects Versions: 3.2.0
Reporter: Jungtaek Lim
I found there're unnecessary access / expensive operation of file system in WAL
commit phase of SS.
They can be optimized via caching (using driver memory a bit) & replacing FS
operation. This brings reduced latency per batch, especially checkpoint against
object store.
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