Thank you. It works ... View more

From hadoop 2.7.0, can't set value 0 to disable the check. dfs.namenode.fs-limits.max-directory-items 1048576 Defines the maximum number of items that a directory may contain. Cannot set the property to a value less than 1 or more than 6400000. http://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml It is generally recommended that users do not tune these values except in very unusual circumstances. ... View more

@mallikarjunarao m As suggested by the document as referred to by @Neeraj Sabharwal, it's important to take care of Ambari Metric System memory requirement as well, in case it is going to be installed in the same system as Ambari Server. In which case I would recommend to plan for at least 16-32Gb only for AMS. More than 16 Gb if the cluster is going to run Hbase. ... View more