test.py topology: repro for issue #1207
test.py topology: repro for issue #1207

Repro for bug in concurrent schema changes for many tables and indexing
involved.

Do alter tables by doing in parallel new table creation, alter a table
(_alter), and index other tables (_index).

Original repro had sets of 20 of those and slept for 20 seconds to
settle. This repro does it for Scylla with just 1 set and 1 second.

This issue goes away once Raft is enabled.

https://github.com/scylladb/scylla/issues/1207

Originally at https://issues.apache.org/jira/browse/CASSANDRA-10250

Signed-off-by: Alejo Sanchez <004be06a28e38b437b038f9b5c0b9f5758b792e9@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla