Hi Team,    Can anyone please let me know, what is the difference between these 2 parameters ?   Cloudera manager sets dfs.datanode.data.dir inside /swap/ folder by default. In EC2 instance, /swap is a temporary directory, which gets deleted and recreated at bootup.   Does that mean some blocks will be deleted at start up and cluster will be curropted ?    I have set up a single node cluster on a EC2 machine with CDH5.5.0 and facing the cluster curruption just after shut down and restart.   Can it be one of the reason ?   Vikas ... View more