For clusters larger than 200 nodes, calculate and set a larger task cache size on the Ambari server.
Calculate the new, larger cache size, using the following relationship:
ecCacheSizeValue=60*<cluster_size> where <cluster_size> is the number of nodes in the cluster.On the Ambari Server host, in
etc/ambari-server/conf/ambari-properties, add the following property and value:server.ecCacheSize=<ecCacheSizeValue>where <ecCacheSizeValue> is the value calculated previously, based on the number of nodes in the cluster.Restart Ambari Server.
ambari-server restart
