How do you connect NIFI to IBM MessageHub through

问题:

I am trying to connect NIFI to IBM MessageHub but I am not getting any connection working.

Does anyone have a working example on how to configure it?

I get a timeout exception in the bulletinboard.

I have configured a PublishKafka_0_11 1.4.0 processor. Configured it as SASL_SSL, added standard ssl context service, added the jaas.conf

KafkaClient {
  org.apache.kafka.common.security.plain.PlainLoginModule required
  serviceName="Message Hub-bq"
  username="xxxxxx"
  password="xxxxxx";
};

And in the log I get:

2017-11-24 13:47:01,407 INFO [kafka-producer-network-thread | producer-1] o.a.k.common.network.SaslChannelBuilder Failed to create channel due to org.apache.kafka.common.KafkaException: Failed to configure SaslClientAuthenticator

回答1:

Looking at the configuration you provided, it looks like you're missing the SASL mechanism. To connect to Message Hub this needs to be set to PLAIN.

From the NiFi docs about PublishKafka, it looks like you can directly provide Kafka setting using Dynamic Properties. You will need to set one of these to:

sasl.mechanism=PLAIN

Also be sure you've specified the path to the JAAS file via -Djava.security.auth.login.config=PATH in your NiFi configuration.