Ashish K Singh created KAFKA-3140:
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Summary: PatternSyntaxException thrown in MM, causes MM to hang
Key: KAFKA-3140
URL: https://issues.apache.org/jira/browse/KAFKA-3140
Project: Kafka
Issue Type: Bug
Components: tools
Reporter: Ashish K Singh
Assignee: Ashish K Singh
On passing an invalid java regex string as whitelist to MM,
PatternSyntaxException is thrown and MM hangs. Below is relevant ST.
{code}
java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0
*
^
at java.util.regex.Pattern.error(Pattern.java:1955)
at java.util.regex.Pattern.sequence(Pattern.java:2123)
at java.util.regex.Pattern.expr(Pattern.java:1996)
at java.util.regex.Pattern.compile(Pattern.java:1696)
at java.util.regex.Pattern.<init>(Pattern.java:1351)
at java.util.regex.Pattern.compile(Pattern.java:1028)
at
kafka.tools.MirrorMaker$MirrorMakerNewConsumer.init(MirrorMaker.scala:521)
at kafka.tools.MirrorMaker$MirrorMakerThread.run(MirrorMaker.scala:389)
{code}
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