aokolnychyi commented on code in PR #8755:
URL: https://github.com/apache/iceberg/pull/8755#discussion_r1350591568
##########
core/src/main/java/org/apache/iceberg/SystemConfigs.java:
##########
@@ -42,6 +42,13 @@ private SystemConfigs() {}
Math.max(2, Runtime.getRuntime().availableProcessors()),
Integer::parseUnsignedInt);
+ public static final ConfigEntry<Integer> DELETE_WORKER_THREAD_POOL_SIZE =
+ new ConfigEntry<>(
+ "iceberg.worker.delete-num-threads",
+ "ICEBERG_WORKER_DELETE_NUM_THREADS",
+ 4 * Runtime.getRuntime().availableProcessors(),
Review Comment:
This value may sound ridiculous but here is my thought process: there is one
such thread pool per JVM, each core in an executor can get a data task that may
need to load 1 to many delete files, these tasks are I/O intensive. This value
essentially means we can try to load 4 delete files concurrently per each data
task.
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