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https://issues.apache.org/jira/browse/KAFKA-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14109094#comment-14109094
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Gerard Maas commented on KAFKA-1057:
------------------------------------
Here's an example that has costed me a good day of work:
{code}
14/08/25 12:40:06 WARN
kafka.consumer.ConsumerFetcherManager$LeaderFinderThread:
[abc.private-1408970387063-6283475b-leader-finder-thread], Failed to find
leader for Set([dev,0], [dev,1])
kafka.common.KafkaException: fetching topic metadata for topics [Set(dev)] from
broker [ArrayBuffer(id:0,host:172.17.0.88 ,port:9092)] failed
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:67)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:88)
at
kafka.consumer.ConsumerFetcherManager$LeaderFinderThread.doWork(ConsumerFetcherManager.scala:66)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
Caused by: java.nio.channels.UnresolvedAddressException
at sun.nio.ch.Net.checkAddress(Net.java:127)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:644)
at kafka.network.BlockingChannel.connect(BlockingChannel.scala:57)
at kafka.producer.SyncProducer.connect(SyncProducer.scala:141)
at
kafka.producer.SyncProducer.getOrMakeConnection(SyncProducer.scala:156)
at
kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:68)
at kafka.producer.SyncProducer.send(SyncProducer.scala:112)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:53)
{code}
This exception is thrown b/c the configured ip address contains a space:
{code}
advertised.host.name=172.17.0.91
{code}
(BTW, this ip address is configured by a script using 'hostname -I' which adds
a space after the address)
+1 for this bug
> Trim whitespaces from user specified configs
> --------------------------------------------
>
> Key: KAFKA-1057
> URL: https://issues.apache.org/jira/browse/KAFKA-1057
> Project: Kafka
> Issue Type: Bug
> Components: config
> Reporter: Neha Narkhede
> Assignee: Neha Narkhede
> Labels: newbie
> Fix For: 0.8.2
>
>
> Whitespaces in configs are a common problem that leads to config errors. It
> will be nice if Kafka can trim the whitespaces from configs automatically
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