Joe, I think the java code I listed in the Jira ticket should reproduce the issue directly, does that not work?
Jason On Tue, Dec 17, 2013 at 9:49 AM, Joe Stein <joe.st...@stealth.ly> wrote: > Hi Jason, I just replied on the ticket. If it is a bug the update to > create new filter or fix as bug, same. > > Can you post some code to help reproduce the problem? so apples to apples > and such, thanks! > > /******************************************* > Joe Stein > Founder, Principal Consultant > Big Data Open Source Security LLC > http://www.stealth.ly > Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop> > ********************************************/ > > > On Tue, Dec 17, 2013 at 1:16 AM, Jason Rosenberg <j...@squareup.com> wrote: > > > Ping.... > > > > Any thoughts on this? > > > > Seems like a bug, but then again, we're not sure what the expected > behavior > > for regexes should be here (e.g. is there a way to whitelist topics with > a > > filter that looks for a leading substring, but then blocks subsequent > > substrings)? E.g. apply a blacklist to a whitelist :)..... > > > > Jason > > > > > > On Thu, Dec 12, 2013 at 1:01 PM, Jason Rosenberg <j...@squareup.com> > wrote: > > > > > All, I've filed: https://issues.apache.org/jira/browse/KAFKA-1180 > > > > > > We are needing to create a stream selector that essentially combines > the > > > logic of the BlackList and WhiteList classes. That is, we want to > > select a > > > topic that contains a certain prefix, as long as it doesn't also > contain > > a > > > secondary string. > > > > > > This should be easy to do with ordinary java Regex's, but we're running > > > into some issues, trying to do this with the WhiteList class only. > > > > > > We have a pattern that uses negative lookahead, like this: > > > > > > "test-(?!bad\\b)[\\w]+" > > > > > > So this should select a topic like: "test-good", but exclude a topic > like > > > "test-bad", and also exclude a topic without the "test" prefix, like > > > "foo-bar". > > > > > > Instead, what we see is a NullPointerException in the ConsumerIterator, > > > and the consumer just hangs, after sending a topic of 'test-topic' > > followed > > > by 'test-bad': > > > > > > 21700 > > > > > > [ConsumerFetcherThread-group1_square-1a7ac0.local-1386869343370-dc19c7dc-0-1946108683] > > > ERROR kafka.consumer.ConsumerFetcherThread - > > > > > > [ConsumerFetcherThread-group1_square-1a7ac0.local-1386869343370-dc19c7dc-0-1946108683], > > > Error due to > > > kafka.common.KafkaException: error processing data for partition > > > [test-bad,0] offset 0 > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1$$anonfun$apply$mcV$sp$2.apply(AbstractFetcherThread.scala:137) > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1$$anonfun$apply$mcV$sp$2.apply(AbstractFetcherThread.scala:109) > > > at scala.collection.immutable.Map$Map1.foreach(Map.scala:105) > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1.apply$mcV$sp(AbstractFetcherThread.scala:109) > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1.apply(AbstractFetcherThread.scala:109) > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1.apply(AbstractFetcherThread.scala:109) > > > at kafka.utils.Utils$.inLock(Utils.scala:565) > > > at > > > > > > kafka.server.AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:108) > > > at > > > > kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:86) > > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51) > > > Caused by: java.lang.NullPointerException > > > at > kafka.consumer.PartitionTopicInfo.enqueue(PartitionTopicInfo.scala:60) > > > at > > > > > > kafka.consumer.ConsumerFetcherThread.processPartitionData(ConsumerFetcherThread.scala:49) > > > at > > > > > > kafka.server.AbstractFetcherThread$$anonfun$processFetchRequest$1$$anonfun$apply$mcV$sp$2.apply(AbstractFetcherThread.scala:128) > > > ... 9 more > > > > > >
