Category "hadoop"

Spark Streaming "ERROR JobScheduler: error in job generator"

I build a spark Streaming application to keep receiving messages from Kafka and then write them into a table HBase. This app runs pretty good for first 25 mins

java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

I install Hadoop-0.20.2 in windows using cygwin. If i run $ bin/hadoop version Hadoop 0.20.2 Subversion https://svn.apache.org/repos/asf/hadoop/common/branch

Use named_struct function in Hive with all the columns of a table

In Hive, you can use a function named_struct in order to create a list of key value pairs; the keys are usually the column names and the values are the values i

why password less ssh not working?

I connected 3 data nodes(in all these data nodes pass-wordless is working fine) in my cluster which are working fine but when i try to connect another data node