How to remove all tables of accumulo or format hadoop files for accumulo

Question

I want to clear all records in accumulo for my local machine and want to delete unused tables created while testing. I found delete table command which can be used from accumulo shell, however that will require much of manual works for deleting large number of tables. I also tried instructions to format namenode of hadoop but that doesn't seems to work.

How can I remove all tables and have fresh start with accumulo datastore?

Answer 1

Well, I deleted all the tables using command deletetable -f -p Test.*. Which will delete all tables with prefix "Test". In short we can write a script to delete all tables.

To remove all the hadoop files from accumulo, follow the steps:

1. Stop accumulo
2. Run$ hdfs dfs -rm -R -skipTrash hdfs://localhost:9000/accumulo. Where hdfs://localhost:9000/accumulo is path to accumulo data.
3. Re-run $ accumulo init.
4. Start Accumulo $ ./bin/start-all.sh.