aokolnychyi commented on a change in pull request #2984:
URL: https://github.com/apache/iceberg/pull/2984#discussion_r689834079



##########
File path: 
flink/src/main/java/org/apache/iceberg/flink/source/FlinkInputFormat.java
##########
@@ -72,12 +62,7 @@ public BaseStatistics getStatistics(BaseStatistics 
cachedStatistics) {
 
   @Override
   public FlinkInputSplit[] createInputSplits(int minNumSplits) throws 
IOException {
-    // Called in Job manager, so it is OK to load table from catalog.
-    tableLoader.open();

Review comment:
       @stevenzwu @openinx, this is something we talked a little bit about in 
#2978.
   
   After a closer look, this would actually change the behavior. As of now, the 
table is loaded two times: in `FlinkSource` and in `FlinkInputFormat`. After 
this change, we only load it in `FlinkSource` and then pass a read-only 
serializable copy to `FlinkInputFormat`.
   
   What is the lifecycle of `FlinkInputFormat`? Is it alright to pass a 
read-only table to it that won't pick up any new snapshots or table properties?




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