I am using HDP 1.2.0 to save data coming from flume.
Data is getting saved for some hours in hdfs and after some time getting error like “””””input-data/FlumeData.1388227106936.tmp could only be replicated to 0 nodes, instead of 1
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)””””””
Then I checked my DATANODE LOG and i found its stopped and trying to restart datanode and time of restarting Incompatible namespaceIDs is the error. So my 1st doubt is “datanode is getting restarted by itself within some period or what”?
I am using two virtual box with centos 6.3 and each box has 7 GB RAM & one box is for flume and namenode and other is only for datanode.