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# 9/23/2011 Generate blocking row lock tests
import datetime
# generate sql write queries
def mysqlgen_select_for_update(k, kv, c, cv):
print "select * from t where %s=%s for update;" % (k, kv)
def mysqlgen_select_for_update_range(k, c, where):
print "select * from t where %s%s for update;" % (k, where)
def mysqlgen_update(k, kv, c, cv):
print "update t set %s=%s where %s=%s;" % (c, c, k, kv);
def mysqlgen_update_range(k, c, where):
print "update t set %s=%s where %s%s;" % (c, c, k, where);
def mysqlgen_insert_ignore(k, kv, c, cv):
print "insert ignore t values(%s, %s);" % (kv, cv)
def mysqlgen_insert_on_dup_update(k, kv, c, cv):
print "insert t values(%s, %s) on duplicate key update %s=%s;" % (kv, cv, c, c)
def mysqlgen_replace(k, kv, c, cv):
print "replace t values(%s, %s);" % (kv, cv)
# genrate sql read queries
def mysqlgen_select_star():
print "select * from t;"
def mysqlgen_select_where(k, where):
print "select * from t where %s%s;" % (k, where)
# mysql test code generation
def mysqlgen_prepare():
print "# prepare with some common parameters"
print "connect(conn1, localhost, root);"
print "set session transaction isolation level serializable;"
print "connect(conn2, localhost, root);"
print "set session transaction isolation level serializable;"
print "connection conn1;"
print ""
def mysqlgen_reload_table():
print "# drop old table, generate new one. 4 rows"
print "--disable_warnings"
print "drop table if exists t;"
print "--enable_warnings"
print "create table t (a int primary key, b int) engine=tokudb;"
for i in range(1, 7):
mysqlgen_insert_ignore("a", i, "b", i*i)
print ""
def mysqlgen_cleanup():
print "# clean it all up"
print "drop table t;"
print "set global tokudb_lock_timeout=4000;"
print ""
write_point_queries = [
("select for update", mysqlgen_select_for_update),
("update", mysqlgen_update),
("insert", mysqlgen_insert_ignore),
("replace", mysqlgen_replace) ]
write_range_queries = [
("select for update", mysqlgen_select_for_update_range),
("update", mysqlgen_update_range) ]
timeouts = [0, 500]
# Here's where all the magic happens
print "# Tokutek"
print "# Blocking row lock tests;"
print "# Generated by %s on %s;" % (__file__, datetime.date.today())
print ""
mysqlgen_prepare()
mysqlgen_reload_table()
for timeout in timeouts:
print "# testing with timeout %s" % timeout
print "set global tokudb_lock_timeout=%s;" % timeout
print ""
print "# testing each point query vs each point query"
for ta, qa in write_point_queries:
# point vs point contention
for tb, qb in write_point_queries:
print "# testing conflict \"%s\" vs. \"%s\"" % (ta, tb)
print "connection conn1;"
print "begin;"
print "# about to do qa.."
qa("a", "1", "b", "100")
print "connection conn2;"
for k in range(1, 5):
if k == 1:
print "--error ER_LOCK_WAIT_TIMEOUT"
qb("a", k, "b", "100")
# point write lock vs read query
print "# make sure we can't read that row, but can read others."
print "begin;"
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_star()
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_where("a", "=1")
mysqlgen_select_where("a", ">=2")
print "commit;"
# Always check in the end that a commit
# allows the other transaction full access
print "connection conn1;"
print "commit;"
print "connection conn2;"
qb("a", "1", "b", "100")
print "begin;"
mysqlgen_select_star()
print "commit;"
print "connection conn1;"
print ""
# test early commit
if timeout > 0:
print "# check that an early commit allows a blocked"
print "# transaction to complete"
print "connection conn1;"
print "begin;"
qa("a", "1", "b", "150")
print "connection conn2;"
# this makes the query asynchronous, so we can jump back
# to the conn1 connection and commit it.
print "send ",
qb("a", "1", "b", "175")
print "connection conn1;"
print "commit;"
print "connection conn2;"
print "reap;"
# point vs range contention
for rt, rq in write_range_queries:
print "# testing range query \"%s\" vs \"%s\"" % (rt, ta)
print "connection conn1;"
print "begin;"
print ""
qa("a", "1", "b", "100")
print "connection conn2;"
print "--error ER_LOCK_WAIT_TIMEOUT"
rq("a", "b", "<=2")
print "--error ER_LOCK_WAIT_TIMEOUT"
rq("a", "b", ">=0")
rq("a", "b", ">2")
# write range lock vs read query
print "# make sure we can't read that row, but can read others."
print "begin;"
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_star()
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_where("a", "=1")
mysqlgen_select_where("a", ">=2")
print "commit;"
# Always check in the end that a commit
# allows the other transaction full access
print "connection conn1;"
print "commit;"
print "connection conn2;"
rq("a", "b", "<=2")
rq("a", "b", ">=0")
print "begin;"
mysqlgen_select_star()
print "commit;"
print "connection conn1;"
print ""
# test early commit
if timeout > 0:
print "# check that an early commit allows a blocked"
print "# transaction to complete"
print "connection conn1;"
print "begin;"
qa("a", "1", "b", "150")
print "connection conn2;"
# this makes the query asynchronous, so we can jump back
# to the conn1 connection and commit it.
print "send ",
rq("a", "b", "<=2")
print "connection conn1;"
print "commit;"
print "connection conn2;"
print "reap;"
for rt, rq in write_range_queries:
for rtb, rqb in write_range_queries:
print "# testing range query \"%s\" vs range query \"%s\"" % (rt, rtb)
print "connection conn1;"
print "begin;"
print ""
rq("a", "b", ">=2 and a<=4")
print "connection conn2;"
print "--error ER_LOCK_WAIT_TIMEOUT"
rqb("a", "b", ">=0 and a<=3")
print "--error ER_LOCK_WAIT_TIMEOUT"
rqb("a", "b", ">=3 and a<=6")
print "--error ER_LOCK_WAIT_TIMEOUT"
rqb("a", "b", "<=2")
rqb("a", "b", ">=5")
# point write lock vs read query
print "# make sure we can't read that row, but can read others."
print "begin;"
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_star()
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_where("a", "=2")
print "--error ER_LOCK_WAIT_TIMEOUT"
mysqlgen_select_where("a", ">=3 and a<=5")
mysqlgen_select_where("a", ">=5")
print "commit;"
# Always check in the end that a commit
# allows the other transaction full access
print "connection conn1;"
print "commit;"
print "connection conn2;"
rqb("a", "b", ">=0 and a<=3")
rqb("a", "b", ">=3 and a<=6")
rqb("a", "b", "<=2")
print "begin;"
mysqlgen_select_star()
print "commit;"
print "connection conn1;"
print ""
# test early commit
if timeout > 0:
print "# check that an early commit allows a blocked"
print "# transaction to complete"
print "connection conn1;"
print "begin;"
rq("a", "b", ">=2 and a<=4")
print "connection conn2;"
# this makes the query asynchronous, so we can jump back
# to the conn1 connection and commit it.
print "send ",
rqb("a", "b", ">=0 and a<=3")
print "connection conn1;"
print "commit;"
print "connection conn2;"
print "reap;"
mysqlgen_cleanup()
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