First you need to know the error. - Check your namenode log file, by default located in the following directory /var/log/hadoop/hdfs run tail -f /var/log/hadoop/hdfs/hadoop-hdfs-namenode*.log . and try to start the service again. - Check if namenode process was already running on that node with ps -ef | grep namenode ... View more

Its not related to HDP 2.5.0, I just encountered the same on 2.4.3. Was resolved for me after changing ambari.properties agent.threadpool.size.max client.threadpool.size.max The value should be mapped to actual CPU core count. Also, increased the heap size for namenode and datanode to 2 GB from the default 1GB value. ... View more

I didnot kinit. Now after i did that the error was gone . Thanks ... View more

@Timothy Spann yes that code was written for storm 0.10. Now I am trying to test that for 1.0.1. Updated the Pom with necessary storm and Kafka versions and added guava dependency as suggested in the above link. Still I am getting build errors ... View more

Works great ! Thanks. ... View more

HDP kafka has a patch for old client api (consumer, producer) to work with kerberorized kafka cluster. So you need to make sure the dependencies you set are coming from the hortonworks maven repo <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka_2.10</artifactId> <version>0.8.2.0</version> ");"><exclusions> ");"><exclusion> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> </exclusion> ");"><exclusion> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </exclusion> </exclusions> </dependency> The above is from Apache. You can use this http://repo.hortonworks.com/content/groups/public/org/apache/kafka/kafka_2.10/0.9.0.2.4.2.8-3/ instead of the above. Add repo.hortonworks.com as one of the maven repo and use the version 0.9.0.2.4.2.8-3 instead of 0.8.2.0 like above. ... View more

'hbase.master.logcleaner.plugins' is not overridden in hbase-site.xml Need to investigate further. ... View more