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Dicovered unpected database operation result, with ./crash_gen.sh -p -s 100 -t 3 -d

This commit is contained in:
Steven Li 2020-05-19 00:44:14 -07:00
parent e1ee02e326
commit a72218378f
1 changed files with 20 additions and 3 deletions
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23
tests/pytest/crash_gen.py
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@ -45,6 +45,14 @@ logger = None
def runThread(wt: WorkerThread): def runThread(wt: WorkerThread):
wt.run() wt.run()
class CrashGenError(Exception):
def __init__(self, msg=None, errno=None):
self.msg = msg
self.errno = errno
def __str__(self):
return self.msg
class WorkerThread: class WorkerThread:
def __init__(self, pool: ThreadPool, tid, def __init__(self, pool: ThreadPool, tid,
tc: ThreadCoordinator, tc: ThreadCoordinator,
@ -493,6 +501,9 @@ class DbState():
def transition(self, tasks): def transition(self, tasks):
if ( len(tasks) == 0 ): # before 1st step, or otherwise empty if ( len(tasks) == 0 ): # before 1st step, or otherwise empty
return # do nothing return # do nothing
self.execSql("show dnodes") # this should show up in the server log, separating steps
if ( self._state == self.STATE_EMPTY ): if ( self._state == self.STATE_EMPTY ):
# self.assertNoSuccess(tasks, ReadFixedDataTask) # some read may be successful, since we might be creating a table # self.assertNoSuccess(tasks, ReadFixedDataTask) # some read may be successful, since we might be creating a table
if ( self.hasSuccess(tasks, CreateDbTask) ): if ( self.hasSuccess(tasks, CreateDbTask) ):
@ -531,10 +542,14 @@ class DbState():
if ( self.hasSuccess(tasks, DropFixedTableTask) ): if ( self.hasSuccess(tasks, DropFixedTableTask) ):
self.assertAtMostOneSuccess(tasks, DropFixedTableTask) self.assertAtMostOneSuccess(tasks, DropFixedTableTask)
self._state = self.STATE_DB_ONLY self._state = self.STATE_DB_ONLY
elif ( self.hasSuccess(tasks, AddFixedDataTask) ): # no success dropping the table elif ( self.hasSuccess(tasks, AddFixedDataTask) ): # no success dropping the table, but added data
self.assertNoTask(tasks, DropFixedTableTask) self.assertNoTask(tasks, DropFixedTableTask)
self._state = self.STATE_HAS_DATA self._state = self.STATE_HAS_DATA
else: # did not drop table, did not insert data, that is impossible elif ( self.hasSuccess(tasks, ReadFixedDataTask) ): # no success in prev cases, but was able to read data
self.assertNoTask(tasks, DropFixedTableTask)
self.assertNoTask(tasks, AddFixedDataTask)
self._state = self.STATE_TABLE_ONLY # no change
else: # did not drop table, did not insert data, did not read successfully, that is impossible
raise RuntimeError("Unexpected no-success scenarios") raise RuntimeError("Unexpected no-success scenarios")
elif ( self._state == self.STATE_HAS_DATA ): # Same as above, TODO: adjust elif ( self._state == self.STATE_HAS_DATA ): # Same as above, TODO: adjust
@ -577,7 +592,7 @@ class DbState():
def assertNoTask(self, tasks, cls): def assertNoTask(self, tasks, cls):
for task in tasks : for task in tasks :
if isinstance(task, cls): if isinstance(task, cls):
raise RuntimeError("Unexpected task: {}".format(cls)) raise CrashGenError("This task: {}, is not expected to be present, given the success/failure of others".format(cls.__name__))
def assertNoSuccess(self, tasks, cls): def assertNoSuccess(self, tasks, cls):
for task in tasks : for task in tasks :
@ -593,6 +608,8 @@ class DbState():
return True return True
return False return False
class TaskExecutor(): class TaskExecutor():
def __init__(self, curStep): def __init__(self, curStep):
self._curStep = curStep self._curStep = curStep