Hi, From the logs, It seems its unable to find the broker "Connection to node -1 (localhost/127.0.0.1:9092) could not be established" Make sure you have broker running in the node and listening to 9092 Also try adding the fully qualified name or IP instead of localhost Thanks Jerry ... View more

Hi, Its showing that it is running in unsupported version. Could you let us know the below version Kafka, CDH, System Java version. 'major.minor version 52.0' Will occur if you are running the application in JAVA version which is less than 1.8 ... View more

Hi, Impala query usually faster on 2nd time than 1st attempt of same query. This is because of OS cache, Which will keep the files in memory and reuse it. It is OS level feature and not specific to Impala. For further performance improvement, there is a concept of "HDFS caching" which is utilized by Impala. HDFS Caching helps further to improve the speed of query results Reference Link below: https://www.cloudera.com/documentation/enterprise/5-8-x/topics/impala_perf_hdfs_caching.html Thanks Jerry ... View more

Hi Tulasi,   Could you check the value of this property Container Executor Group from the file "container-executor.cfg" file and cross check with CM configuration   Thanks Jerry ... View more

Hi Tulasi, Could you please verify the "container-executor.group" are same on both from Cloudera manager (Yarn->Configuration->Container Executor Group) and /etc/hadoop/conf.cloudera.yarn/container-executor.cfg (from Node manager host) Let us know if you have questions Thanks Jerry ... View more