pvary commented on code in PR #5642:
URL: https://github.com/apache/iceberg/pull/5642#discussion_r959251961
##########
flink/v1.13/flink/src/main/java/org/apache/iceberg/flink/sink/IcebergStreamWriter.java:
##########
@@ -83,9 +83,18 @@ public void dispose() throws Exception {
@Override
public void endInput() throws IOException {
// For bounded stream, it may don't enable the checkpoint mechanism so
we'd better to emit the
- // remaining
- // completed files to downstream before closing the writer so that we
won't miss any of them.
+ // remaining completed files to downstream before closing the writer so
that we won't miss any
+ // of them.
+ // Note that if the task is not closed after calling endInput, checkpoint
may be triggered again
+ // causing files to be sent repeatedly, so we need to set write to null
after the file is sent.
+
+ if (writer == null) {
+ return;
+ }
Review Comment:
nit: We usually add empty lines after a block
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