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提交 5f979568 编写于 作者: S Steven Li
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Refactored and cleaned up crash_gen tool, ready to add sub-state transitions

上级 c44bb0c6
隐藏空白更改
内联 并排
Showing with 52 addition and 91 deletion
tests/pytest/crash_gen.py
浏览文件 @ 5f979568
......@@ -69,7 +69,7 @@ class WorkerThread:
# self._curStep = -1
self._pool = pool
self._tid = tid
self._tc = tc
self._tc = tc # type: ThreadCoordinator
# self.threadIdent = threading.get_ident()
self._thread = threading.Thread(target=runThread, args=(self,))
self._stepGate = threading.Event()
......@@ -161,13 +161,13 @@ class WorkerThread:
if ( gConfig.per_thread_db_connection ):
return self._dbConn.execute(sql)
else:
return self._tc.getDbState().getDbConn().execute(sql)
return self._tc.getDbManager().getDbConn().execute(sql)
def getDbConn(self):
if ( gConfig.per_thread_db_connection ):
return self._dbConn
else:
return self._tc.getDbState().getDbConn()
return self._tc.getDbManager().getDbConn()
# def querySql(self, sql): # not "execute", since we are out side the DB context
# if ( gConfig.per_thread_db_connection ):
......@@ -176,12 +176,12 @@ class WorkerThread:
# return self._tc.getDbState().getDbConn().query(sql)
class ThreadCoordinator:
def __init__(self, pool, dbState):
def __init__(self, pool, dbManager):
self._curStep = -1 # first step is 0
self._pool = pool
# self._wd = wd
self._te = None # prepare for every new step
self._dbState = dbState
self._dbManager = dbManager
self._executedTasks: List[Task] = [] # in a given step
self._lock = threading.RLock() # sync access for a few things
......@@ -191,8 +191,8 @@ class ThreadCoordinator:
def getTaskExecutor(self):
return self._te
def getDbState(self) -> DbState :
return self._dbState
def getDbManager(self) -> DbManager :
return self._dbManager
def crossStepBarrier(self):
self._stepBarrier.wait()
......@@ -216,7 +216,7 @@ class ThreadCoordinator:
# At this point, all threads should be pass the overall "barrier" and before the per-thread "gate"
try:
self._dbState.transition(self._executedTasks) # at end of step, transiton the DB state
self._dbManager.transition(self._executedTasks) # at end of step, transiton the DB state
except taos.error.ProgrammingError as err:
if ( err.msg == 'network unavailable' ): # broken DB connection
logger.info("DB connection broken, execution failed")
......@@ -289,8 +289,8 @@ class ThreadCoordinator:
# logger.debug(" (dice:{}/{}) ".format(i, nTasks))
# # return copy.copy(tasks[i]) # Needs a fresh copy, to save execution results, etc.
# return tasks[i].clone() # TODO: still necessary?
taskType = self.getDbState().pickTaskType() # pick a task type for current state
return taskType(self.getDbState(), self._execStats) # create a task from it
taskType = self.getDbManager().pickTaskType() # pick a task type for current state
return taskType(self.getDbManager(), self._execStats) # create a task from it
def resetExecutedTasks(self):
self._executedTasks = [] # should be under single thread
......@@ -301,16 +301,12 @@ class ThreadCoordinator:
# We define a class to run a number of threads in locking steps.
class ThreadPool:
def __init__(self, dbState, numThreads, maxSteps, funcSequencer):
def __init__(self, numThreads, maxSteps):
self.numThreads = numThreads
self.maxSteps = maxSteps
self.funcSequencer = funcSequencer
# Internal class variables
# self.dispatcher = WorkDispatcher(dbState) # Obsolete?
self.curStep = 0
self.threadList = []
# self.stepGate = threading.Condition() # Gate to hold/sync all threads
# self.numWaitingThreads = 0
# starting to run all the threads, in locking steps
def createAndStartThreads(self, tc: ThreadCoordinator):
......@@ -324,7 +320,8 @@ class ThreadPool:
logger.debug("Joining thread...")
workerThread._thread.join()
# A queue of continguous POSITIVE integers
# A queue of continguous POSITIVE integers, used by DbManager to generate continuous numbers
# for new table names
class LinearQueue():
def __init__(self):
self.firstIndex = 1 # 1st ever element
......@@ -600,9 +597,9 @@ class StateEmpty(AnyState):
]
def verifyTasksToState(self, tasks, newState):
if ( self.hasSuccess(tasks, CreateDbTask) ): # at EMPTY, if there's succes in creating DB
if ( not self.hasTask(tasks, DropDbTask) ) : # and no drop_db tasks
self.assertAtMostOneSuccess(tasks, CreateDbTask) # we must have at most one. TODO: compare numbers
if ( self.hasSuccess(tasks, TaskCreateDb) ): # at EMPTY, if there's succes in creating DB
if ( not self.hasTask(tasks, TaskDropDb) ) : # and no drop_db tasks
self.assertAtMostOneSuccess(tasks, TaskCreateDb) # we must have at most one. TODO: compare numbers
class StateDbOnly(AnyState):
def getInfo(self):
......@@ -614,19 +611,19 @@ class StateDbOnly(AnyState):
]
def verifyTasksToState(self, tasks, newState):
if ( not self.hasTask(tasks, CreateDbTask) ):
self.assertAtMostOneSuccess(tasks, DropDbTask) # only if we don't create any more
self.assertIfExistThenSuccess(tasks, DropDbTask)
if ( not self.hasTask(tasks, TaskCreateDb) ):
self.assertAtMostOneSuccess(tasks, TaskDropDb) # only if we don't create any more
self.assertIfExistThenSuccess(tasks, TaskDropDb)
# self.assertAtMostOneSuccess(tasks, CreateFixedTableTask) # not true in massively parrallel cases
# Nothing to be said about adding data task
# if ( self.hasSuccess(tasks, DropDbTask) ): # dropped the DB
# self.assertHasTask(tasks, DropDbTask) # implied by hasSuccess
# self.assertAtMostOneSuccess(tasks, DropDbTask)
# self._state = self.STATE_EMPTY
if ( self.hasSuccess(tasks, CreateFixedSuperTableTask) ): # did not drop db, create table success
if ( self.hasSuccess(tasks, TaskCreateSuperTable) ): # did not drop db, create table success
# self.assertHasTask(tasks, CreateFixedTableTask) # tried to create table
if ( not self.hasTask(tasks, DropFixedSuperTableTask) ):
self.assertAtMostOneSuccess(tasks, CreateFixedSuperTableTask) # at most 1 attempt is successful, if we don't drop anything
if ( not self.hasTask(tasks, TaskDropSuperTable) ):
self.assertAtMostOneSuccess(tasks, TaskCreateSuperTable) # at most 1 attempt is successful, if we don't drop anything
# self.assertNoTask(tasks, DropDbTask) # should have have tried
# if ( not self.hasSuccess(tasks, AddFixedDataTask) ): # just created table, no data yet
# # can't say there's add-data attempts, since they may all fail
......@@ -650,8 +647,8 @@ class StateSuperTableOnly(AnyState):
]
def verifyTasksToState(self, tasks, newState):
if ( self.hasSuccess(tasks, DropFixedSuperTableTask) ): # we are able to drop the table
self.assertAtMostOneSuccess(tasks, DropFixedSuperTableTask)
if ( self.hasSuccess(tasks, TaskDropSuperTable) ): # we are able to drop the table
self.assertAtMostOneSuccess(tasks, TaskDropSuperTable)
# self._state = self.STATE_DB_ONLY
# elif ( self.hasSuccess(tasks, AddFixedDataTask) ): # no success dropping the table, but added data
# self.assertNoTask(tasks, DropFixedTableTask) # not true in massively parrallel cases
......@@ -675,28 +672,28 @@ class StateHasData(AnyState):
def verifyTasksToState(self, tasks, newState):
if ( newState.equals(AnyState.STATE_EMPTY) ):
self.hasSuccess(tasks, DropDbTask)
if ( not self.hasTask(tasks, CreateDbTask) ) :
self.assertAtMostOneSuccess(tasks, DropDbTask) # TODO: dicy
self.hasSuccess(tasks, TaskDropDb)
if ( not self.hasTask(tasks, TaskCreateDb) ) :
self.assertAtMostOneSuccess(tasks, TaskDropDb) # TODO: dicy
elif ( newState.equals(AnyState.STATE_DB_ONLY) ): # in DB only
if ( not self.hasTask(tasks, CreateDbTask)): # without a create_db task
self.assertNoTask(tasks, DropDbTask) # we must have drop_db task
self.hasSuccess(tasks, DropFixedSuperTableTask)
if ( not self.hasTask(tasks, TaskCreateDb)): # without a create_db task
self.assertNoTask(tasks, TaskDropDb) # we must have drop_db task
self.hasSuccess(tasks, TaskDropSuperTable)
# self.assertAtMostOneSuccess(tasks, DropFixedSuperTableTask) # TODO: dicy
elif ( newState.equals(AnyState.STATE_TABLE_ONLY) ): # data deleted
self.assertNoTask(tasks, DropDbTask)
self.assertNoTask(tasks, DropFixedSuperTableTask)
self.assertNoTask(tasks, AddFixedDataTask)
self.assertNoTask(tasks, TaskDropDb)
self.assertNoTask(tasks, TaskDropSuperTable)
self.assertNoTask(tasks, TaskAddData)
# self.hasSuccess(tasks, DeleteDataTasks)
else: # should be STATE_HAS_DATA
self.assertNoTask(tasks, DropDbTask)
if (not self.hasTask(tasks, CreateFixedSuperTableTask)) : # if we didn't create the table
self.assertNoTask(tasks, DropFixedSuperTableTask) # we should not have a task that drops it
self.assertNoTask(tasks, TaskDropDb)
if (not self.hasTask(tasks, TaskCreateSuperTable)) : # if we didn't create the table
self.assertNoTask(tasks, TaskDropSuperTable) # we should not have a task that drops it
# self.assertIfExistThenSuccess(tasks, ReadFixedDataTask)
# State of the database as we believe it to be
class DbState():
# Manager of the Database Data/Connection
class DbManager():
def __init__(self, resetDb = True):
self.tableNumQueue = LinearQueue()
......@@ -879,11 +876,11 @@ class DbState():
# Generic Checks, first based on the start state
if self._state.canCreateDb():
self._state.assertIfExistThenSuccess(tasks, CreateDbTask)
self._state.assertIfExistThenSuccess(tasks, TaskCreateDb)
# self.assertAtMostOneSuccess(tasks, CreateDbTask) # not really, in case of multiple creation and drops
if self._state.canDropDb():
self._state.assertIfExistThenSuccess(tasks, DropDbTask)
self._state.assertIfExistThenSuccess(tasks, TaskDropDb)
# self.assertAtMostOneSuccess(tasks, DropDbTask) # not really in case of drop-create-drop
# if self._state.canCreateFixedTable():
......@@ -930,8 +927,8 @@ class Task():
# logger.debug("Allocating taskSN: {}".format(Task.taskSn))
return Task.taskSn
def __init__(self, dbState: DbState, execStats: ExecutionStats):
self._dbState = dbState
def __init__(self, dbManager: DbManager, execStats: ExecutionStats):
self._dbState = dbManager
self._workerThread = None
self._err = None
self._curStep = None
......@@ -1075,7 +1072,7 @@ class StateTransitionTask(Task):
class CreateDbTask(StateTransitionTask):
class TaskCreateDb(StateTransitionTask):
@classmethod
def getInfo(cls):
return [
......@@ -1090,7 +1087,7 @@ class CreateDbTask(StateTransitionTask):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
wt.execSql("create database db")
class DropDbTask(StateTransitionTask):
class TaskDropDb(StateTransitionTask):
@classmethod
def getInfo(cls):
return [
......@@ -1106,7 +1103,7 @@ class DropDbTask(StateTransitionTask):
wt.execSql("drop database db")
logger.debug("[OPS] database dropped at {}".format(time.time()))
class CreateFixedSuperTableTask(StateTransitionTask):
class TaskCreateSuperTable(StateTransitionTask):
@classmethod
def getInfo(cls):
return [
......@@ -1124,7 +1121,7 @@ class CreateFixedSuperTableTask(StateTransitionTask):
# No need to create the regular tables, INSERT will do that automatically
class ReadFixedDataTask(StateTransitionTask):
class TaskReadData(StateTransitionTask):
@classmethod
def getInfo(cls):
return [
......@@ -1151,7 +1148,7 @@ class ReadFixedDataTask(StateTransitionTask):
# tdSql.query(" cars where tbname in ('carzero', 'carone')")
class DropFixedSuperTableTask(StateTransitionTask):
class TaskDropSuperTable(StateTransitionTask):
@classmethod
def getInfo(cls):
return [
......@@ -1167,7 +1164,7 @@ class DropFixedSuperTableTask(StateTransitionTask):
tblName = self._dbState.getFixedSuperTableName()
wt.execSql("drop table db.{}".format(tblName))
class AddFixedDataTask(StateTransitionTask):
class TaskAddData(StateTransitionTask):
activeTable : Set[int] = set() # Track which table is being actively worked on
LARGE_NUMBER_OF_TABLES = 35
SMALL_NUMBER_OF_TABLES = 3
......@@ -1233,42 +1230,6 @@ class AddFixedDataTask(StateTransitionTask):
self.activeTable.discard(i) # not raising an error, unlike remove
#---------- Non State-Transition Related Tasks ----------#
class CreateTableTask(Task):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
tIndex = self._dbState.addTable()
self.logDebug("Creating a table {} ...".format(tIndex))
wt.execSql("create table db.table_{} (ts timestamp, speed int)".format(tIndex))
self.logDebug("Table {} created.".format(tIndex))
self._dbState.releaseTable(tIndex)
class DropTableTask(Task):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
tableName = self._dbState.getTableNameToDelete()
if ( not tableName ): # May be "False"
self.logInfo("Cannot generate a table to delete, skipping...")
return
self.logInfo("Dropping a table db.{} ...".format(tableName))
wt.execSql("drop table db.{}".format(tableName))
class AddDataTask(Task):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
ds = self._dbState
self.logInfo("Adding some data... numQueue={}".format(ds.tableNumQueue.toText()))
tIndex = ds.pickAndAllocateTable()
if ( tIndex == None ):
self.logInfo("No table found to add data, skipping...")
return
sql = "insert into db.table_{} values ('{}', {});".format(tIndex, ds.getNextTick(), ds.getNextInt())
self.logDebug("[SQL] Executing SQL: {}".format(sql))
wt.execSql(sql)
ds.releaseTable(tIndex)
self.logDebug("[OPS] Finished adding data")
# Deterministic random number generator
class Dice():
seeded = False # static, uninitialized
......@@ -1384,12 +1345,12 @@ def main():
# resetDb = False # DEBUG only
# dbState = DbState(resetDb) # DBEUG only!
dbState = DbState() # Regular function
dbManager = DbManager() # Regular function
Dice.seed(0) # initial seeding of dice
tc = ThreadCoordinator(
ThreadPool(dbState, gConfig.num_threads, gConfig.max_steps, 0),
ThreadPool(gConfig.num_threads, gConfig.max_steps),
# WorkDispatcher(dbState), # Obsolete?
dbState
dbManager
)
# # Hack to exercise reading from disk, imcreasing coverage. TODO: fix
......@@ -1437,7 +1398,7 @@ def main():
tc.run()
tc.logStats()
dbState.cleanUp()
dbManager.cleanUp()
# logger.info("Crash_Gen execution finished")
......
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