Revision 1211746

[jira] [HBASE-4908] HBase cluster test tool (port from 0.89-fb)

Summary:
Porting one of our HBase cluster test tools (a single-process multi-threaded
load generator and verifier) from 0.89-fb to trunk.
I cleaned up the code a bit compared to what's in 0.89-fb, and discovered that
it has some features that I have not tried yet (some kind of a kill test, and
some way to run HBase as multiple processes on one machine).
The main utility of this piece of code for us has been the HBaseClusterTest
command-line tool (called HBaseTest in 0.89-fb), which we usually invoke as a
load test in our five-node dev cluster testing, e.g.:

hbase org.apache.hadoop.hbase.util.LoadTestTool -write 50:100:20 -tn loadtest4
-read 100:10 -zk <zk_quorum_node> -bloom ROWCOL -compression LZO -key_window 5
-max_read_errors 10000 -num_keys 10000000000 -start_key 0

Test Plan:
Run this on a dev cluster. Run all unit tests.

Reviewers: stack, Karthik, Kannan, nspiegelberg, JIRA

Reviewed By: nspiegelberg

CC: stack, nspiegelberg, mbautin, Karthik

Differential Revision: 549