Hao Dang created FLINK-13789:
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Summary: Transactional Id Generation fails due to user code
impacting formatting string
Key: FLINK-13789
URL: https://issues.apache.org/jira/browse/FLINK-13789
Project: Flink
Issue Type: Bug
Reporter: Hao Dang
In
[TransactionalIdsGenerator.java|[https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/TransactionalIdsGenerator.java#L94]],
prefix contains taskName of the particular task which could ultimately contain
user code. In some cases, user code contains conversion specifiers like %, the
string formatting could fail.
For example, in Flink SQL code, user could have a LIKE statement with a %
wildcard, the % wildcard will end up in the prefix and get mistreated during
formatting, causing task to fail.
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