HyukjinKwon commented on a change in pull request #31618:
URL: https://github.com/apache/spark/pull/31618#discussion_r580856999
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File path: docs/core-migration-guide.md
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@@ -24,6 +24,8 @@ license: |
## Upgrading from Core 3.1 to 3.2
+- Since Spark 3.2, `spark.eventLog.compression.codec` has `zstd` by default
which means Spark will not fallback to use `spark.io.compression.codec`. To
restore the behavior before Spark 3.2, you can set
`spark.eventLog.compression.codec` explicitly to the value of
`spark.io.compression.codec`.
Review comment:
nit but maybe: "`spark.eventLog.compression.codec` is set to `zstd` by
default which means Spark will not fallback to use `spark.io.compression.codec`
anymore"
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