huaxingao commented on code in PR #13868:
URL: https://github.com/apache/iceberg/pull/13868#discussion_r2288800149
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spark/v3.4/spark/src/main/java/org/apache/iceberg/spark/actions/RewriteDataFilesSparkAction.java:
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@@ -101,6 +102,10 @@ public class RewriteDataFilesSparkAction
super(spark.cloneSession());
// Disable Adaptive Query Execution as this may change the output
partitioning of our write
spark().conf().set(SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), false);
+ // Disable executor cache for delete files as each partition is rewritten
separately.
+ // Note: when compacting to a different target spec, data from multiple
partitions
+ // may be grouped together, but caching is still disabled to avoid
connection pool issues.
Review Comment:
@anuragmantri let's fix the comment in 4.0 too? It's better to keep the
comments consistent across versions.
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