file.txt

importing file from hadoop-cluster 
	modify edx-analytics-pipeline/override.cfg
		in heading [event_logs] 
		instead of "s3:// " use path to hadoop cluster
		like- "hdfs://hadoop_cluster_ip:port/path_to_log_directory"
		
		
launch-task gets paused  [SOLVED]
	interrupt the task and check if you can drop an existing database
	if no, then :
		http://dba.stackexchange.com/questions/11806/why-is-drop-database-taking-so-long-mysql
        	https://askubuntu.com/questions/82374/how-do-i-start-stop-mysql-server
        	http://dba.stackexchange.com/questions/1558/how-long-is-too-long-for-mysql-connections-to-sleep
        	
        	http://stackoverflow.com/questions/19801139/mysql-permanently-getting-waiting-for-table-metadata-lock
        	http://dev.mysql.com/doc/refman/5.5/en/metadata-locking.html
        	
        	problem with mysql version 5.5 related to metalocks, upgrade it to 5.6