Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/4088#discussion_r122929860
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/io/DelimitedInputFormat.java
---
@@ -269,6 +272,9 @@ public void setBufferSize(int bufferSize) {
if (bufferSize < 1) {
throw new IllegalArgumentException("Buffer size must be
at least 1.");
}
+ if (bufferSize <= delimiter.length) {
--- End diff --
we should also adjust the condition above that `bufferSize` must be be
greater than one.
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