I’ve spent a lot of time with Kerberos recently. If you are debugging kerberos and kafka, try this before starting Kafka add -Dsun.security.krb5.debug=true to the KAFKA_HEAP_OPTS. export KAFKA_HEAP_OPTS=”-Xmx1G -Xms1G -Djava.security.auth.login.config=/opt/kafka/security/kafka_server_jaas.conf -Djava.security.krb5.conf=/etc/krb5.conf -Dlog4j.properties=file:///opt/kafka/config/log4j.properties -Dsun.security.krb5.debug=true” /opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties You get a rich log file root@broker:/# cat zookeeper.log [2017-05-20 20:25:33,482] INFO Reading configuration from: /opt/kafka/config/zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig) [2017-05-20 20:25:33,495] […]
I worked with a team yesterday, and wanted to capture a simple datasource example with DB2 usage with WebSphere Liberty and using with DB2:
I had to restart something like 120 tasks in Ambari for an IOP deployment. I used the Ambari API.