I am trying the sample impyla code from    http://blog.cloudera.com/blog/2014/04/a-new-python-client-for-impala/   And getting "impala.error.HiveServer2Error: Failed after retrying 3 times"   impyla is installed on the hadoop (CDH-5.3.2) node I log in to     Tried: from impala.dbapi import connect conn = connect(host='my.impala.host', port=21050) cursor = conn.cursor() cursor.execute('SELECT * FROM youval_db.accounts_info LIMIT 10') print cursor.description # prints the result set's schema results = cursor.fetchall() Where for  "my.impala.host" I used the the impala host I got from the cloudera manager. (tried with host from the following groups: Impala Catalog Server Default Group, Impala Daemon Default Group and Impala StateStore Default Group)   got the same error for All.   Also tried with  conn = connect() It did not work as well.   Any suggestion on how to make it work? Thanks  ... View more