Details
-
Bug
-
Status: Resolved
-
Normal
-
Resolution: Won't Fix
-
None
-
None
-
Ubuntu Linux 12.04, kernel 3.4.0
-
Normal
Description
1. created a csv file with 10,000,000 rows with two integer columns; saved it to an SSD disk, it took a few seconds, the file is 184 MB large.
2. started a single local cassandra node from fresh empty data and commit log dirs
3. created a keyspace with simple strategy and RF=1
4. loading the file with COPY ... FROM command - it is over 15 minutes now and still loading
top reports about 50% CPU usage for java (cassandra) and 50% for python.
I/O is almost idle, iowait < 0.1%.