MirrorMaker wont start due to java.lang.RuntimeException

[#1]

[mirrormaker-thread-0] Mirror maker thread failure due to 
java.lang.RuntimeException: { is an invalid regex.
	at kafka.utils.TopicFilter.<init>(TopicFilter.scala:38)
	at kafka.utils.Whitelist.<init>(TopicFilter.scala:46)
	at kafka.tools.MirrorMaker$ConsumerWrapper$$anonfun$init$2.apply(MirrorMaker.scala:316)
	at kafka.tools.MirrorMaker$ConsumerWrapper$$anonfun$init$2.apply(MirrorMaker.scala:314)
	at scala.Option.foreach(Option.scala:257)
	at kafka.tools.MirrorMaker$ConsumerWrapper.init(MirrorMaker.scala:314)
	at kafka.tools.MirrorMaker$MirrorMakerThread.run(MirrorMaker.scala:215)

please help! 

[#2 · Accepted solution]

Hi @sakitha ,

What version of CDH/HDP/CDP are you using? If you are using Cloudera Manager (CM), please check the MirrorMaker parameter values for presence of any "}" characters. The error, as shown, indicates there is something wrong with Whitelist parameter or the like.

Regards,

Alex Akulov

[#3 · Accepted solution]

Hi @sakitha ,

What version of CDH/HDP/CDP are you using? If you are using Cloudera Manager (CM), please check the MirrorMaker parameter values for presence of any "}" characters. The error, as shown, indicates there is something wrong with Whitelist parameter or the like.

Regards,

Alex Akulov

[#4 · Accepted solution]

Hi @sakitha 

Seems to be a known issue. 

Is the topic whitelist is set to " * " ?  Can you please try with dot  - " .*" 

Let us know if that works for you. 

Regards,

~ If the above answers your questions. Please give a thumbs up and mark the post as accept as solution.