Rebuild Accumulo after namenode crash corrupts root block
First find the bad blocks with:
hdfs fsck / | egrep -v '^\.+$' | grep -v eplicathen delete the file(s) in the block(s) in question and delete with:
hdfs dfs -rm -skipTrash /some/path/to/filesAs HDFS user run the following:
hdfs dfsadmin -safemode leavehdfs dfs -rm -R -skipTrash hdfs://servername:8020/apps/accumulohadoop fs -mkdir -p /apps/accumulohadoop fs -chmod -R 700 /apps/accumulohadoop fs -chown -R accumlo:accumulo /apps/accumuloFrom Ambari restart Accumulo to initialise or run:
/usr/hdp/current/accumulo-client/bin/accumulo initand then start with
/usr/hdp/current/accumulo-client/bin/start-all.sh