mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 1 | #!/usr/bin/python -u |
| 2 | |
| 3 | """ |
| 4 | Autotest scheduler |
| 5 | """ |
| 6 | __author__ = "Paul Turner <pjt@google.com>" |
| 7 | |
| 8 | import os, sys, tempfile, shutil, MySQLdb, time, traceback, subprocess, Queue |
| 9 | import optparse, signal, smtplib, socket |
mbligh | b090f14 | 2008-02-27 21:33:46 +0000 | [diff] [blame] | 10 | from common import global_config |
| 11 | |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 12 | RESULTS_DIR = '.' |
| 13 | AUTOSERV_NICE_LEVEL = 10 |
| 14 | |
| 15 | AUTOTEST_PATH = os.path.join(os.path.dirname(__file__), '..') |
| 16 | |
| 17 | if os.environ.has_key('AUTOTEST_DIR'): |
| 18 | AUTOTEST_PATH = os.environ['AUTOTEST_DIR'] |
| 19 | AUTOTEST_SERVER_DIR = os.path.join(AUTOTEST_PATH, 'server') |
| 20 | AUTOTEST_TKO_DIR = os.path.join(AUTOTEST_PATH, 'tko') |
| 21 | |
| 22 | if AUTOTEST_SERVER_DIR not in sys.path: |
| 23 | sys.path.insert(0, AUTOTEST_SERVER_DIR) |
| 24 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 25 | _db = None |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 26 | _shutdown = False |
| 27 | _notify_email = None |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 28 | _autoserv_path = 'autoserv' |
| 29 | _testing_mode = False |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 30 | |
| 31 | |
| 32 | def main(): |
| 33 | usage = 'usage: %prog [options] results_dir' |
| 34 | |
| 35 | parser = optparse.OptionParser(usage) |
| 36 | parser.add_option('--no-recover', help='Skip machine/job recovery ' + |
| 37 | 'step [for multiple monitors/rolling upgrades]', |
| 38 | action='store_true') |
| 39 | parser.add_option('--logfile', help='Set a log file that all stdout ' + |
| 40 | 'should be redirected to. Stderr will go to this ' + |
| 41 | 'file + ".err"') |
| 42 | parser.add_option('--notify', help='Set an email address to be ' + |
| 43 | 'notified of exceptions') |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 44 | parser.add_option('--test', help='Indicate that scheduler is under ' + |
| 45 | 'test and should use dummy autoserv and no parsing', |
| 46 | action='store_true') |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 47 | (options, args) = parser.parse_args() |
| 48 | if len(args) != 1: |
| 49 | parser.print_usage() |
| 50 | return |
| 51 | |
| 52 | global RESULTS_DIR |
| 53 | RESULTS_DIR = args[0] |
| 54 | |
| 55 | global _notify_email |
| 56 | _notify_email = options.notify |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 57 | |
| 58 | if options.test: |
| 59 | global _autoserv_path |
| 60 | _autoserv_path = 'autoserv_dummy' |
| 61 | global _testing_mode |
| 62 | _testing_mode = True |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 63 | |
| 64 | init(options.logfile) |
| 65 | dispatcher = Dispatcher(do_recover = not options.no_recover) |
| 66 | |
| 67 | try: |
| 68 | while not _shutdown: |
| 69 | dispatcher.tick() |
| 70 | time.sleep(20) |
| 71 | dispatcher.shut_down() |
| 72 | except: |
| 73 | log_stacktrace("Uncaught exception; terminating monitor_db") |
| 74 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 75 | _db.disconnect() |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 76 | |
| 77 | |
| 78 | def handle_sigint(signum, frame): |
| 79 | global _shutdown |
| 80 | _shutdown = True |
| 81 | print "Shutdown request received." |
| 82 | |
| 83 | |
| 84 | def init(logfile): |
| 85 | if logfile: |
| 86 | enable_logging(logfile) |
| 87 | print "%s> dispatcher starting" % time.strftime("%X %x") |
| 88 | print "My PID is %d" % os.getpid() |
| 89 | |
| 90 | os.environ['PATH'] = AUTOTEST_SERVER_DIR + ':' + os.environ['PATH'] |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 91 | global _db |
| 92 | _db = DatabaseConn() |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 93 | |
| 94 | print "Setting signal handler" |
| 95 | signal.signal(signal.SIGINT, handle_sigint) |
| 96 | |
| 97 | print "Connected! Running..." |
| 98 | |
| 99 | |
| 100 | def enable_logging(logfile): |
| 101 | out_file = logfile |
| 102 | err_file = "%s.err" % logfile |
| 103 | print "Enabling logging to %s (%s)" % (out_file, err_file) |
| 104 | out_fd = open(out_file, "a", buffering=0) |
| 105 | err_fd = open(err_file, "a", buffering=0) |
| 106 | |
| 107 | os.dup2(out_fd.fileno(), sys.stdout.fileno()) |
| 108 | os.dup2(err_fd.fileno(), sys.stderr.fileno()) |
| 109 | |
| 110 | sys.stdout = out_fd |
| 111 | sys.stderr = err_fd |
| 112 | |
| 113 | |
| 114 | def idle_hosts(): |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 115 | rows = _db.execute(""" |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 116 | SELECT * FROM hosts h WHERE |
| 117 | id NOT IN (SELECT host_id FROM host_queue_entries WHERE active) AND ( |
| 118 | (id IN (SELECT host_id FROM host_queue_entries WHERE not complete AND not active)) |
| 119 | OR |
| 120 | (id IN (SELECT DISTINCT hl.host_id FROM host_queue_entries hqe |
| 121 | INNER JOIN hosts_labels hl ON hqe.meta_host=hl.label_id WHERE not hqe.complete AND not hqe.active)) |
| 122 | ) |
| 123 | AND locked=false AND (h.status IS null OR h.status='Ready') """) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 124 | hosts = [Host(row=i) for i in rows] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 125 | return hosts |
| 126 | |
| 127 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 128 | class DatabaseConn: |
| 129 | def __init__(self): |
| 130 | self.reconnect_wait = 20 |
| 131 | self.conn = None |
| 132 | self.cur = None |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 133 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 134 | self.connect() |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 135 | |
| 136 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 137 | def connect(self): |
| 138 | self.disconnect() |
| 139 | |
| 140 | # get global config and parse for info |
| 141 | c = global_config.global_config |
| 142 | dbase = "AUTOTEST_WEB" |
| 143 | DB_HOST = c.get_config_value(dbase, "host", "localhost") |
| 144 | DB_SCHEMA = c.get_config_value(dbase, "database", |
| 145 | "autotest_web") |
| 146 | |
| 147 | global _testing_mode |
| 148 | if _testing_mode: |
| 149 | DB_SCHEMA = 'stresstest_autotest_web' |
| 150 | |
| 151 | DB_USER = c.get_config_value(dbase, "user", "autotest") |
| 152 | DB_PASS = c.get_config_value(dbase, "password", "google") |
| 153 | |
| 154 | while not self.conn: |
| 155 | try: |
| 156 | self.conn = MySQLdb.connect(host=DB_HOST, |
| 157 | user=DB_USER, |
| 158 | passwd=DB_PASS, |
| 159 | db=DB_SCHEMA) |
| 160 | |
| 161 | self.conn.autocommit(True) |
| 162 | self.cur = self.conn.cursor() |
| 163 | except MySQLdb.OperationalError: |
| 164 | #traceback.print_exc() |
| 165 | print "Can't connect to MYSQL; reconnecting" |
| 166 | time.sleep(self.reconnect_wait) |
| 167 | self.disconnect() |
| 168 | |
| 169 | |
| 170 | def disconnect(self): |
| 171 | if self.conn: |
| 172 | self.conn.close() |
| 173 | self.conn = None |
| 174 | self.cur = None |
| 175 | |
| 176 | |
| 177 | def execute(self, *args, **dargs): |
| 178 | while (True): |
| 179 | try: |
| 180 | self.cur.execute(*args, **dargs) |
| 181 | return self.cur.fetchall() |
| 182 | except MySQLdb.OperationalError: |
| 183 | print "MYSQL connection died; reconnecting" |
| 184 | time.sleep(self.reconnect_wait) |
| 185 | self.connect() |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 186 | |
| 187 | |
| 188 | def parse_results(results_dir, flags=""): |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 189 | global _testing_mode |
| 190 | if _testing_mode: |
| 191 | return |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 192 | parse = os.path.join(AUTOTEST_TKO_DIR, 'parse') |
| 193 | output = os.path.join(results_dir, '.parse.log') |
| 194 | os.system("%s %s -r -o %s > %s 2>&1 &" % (parse, flags, results_dir, output)) |
| 195 | |
| 196 | |
| 197 | def log_stacktrace(reason): |
| 198 | (type, value, tb) = sys.exc_info() |
| 199 | str = "EXCEPTION: %s\n" % reason |
| 200 | str += "%s / %s / %s\n" % (socket.gethostname(), os.getpid(), |
| 201 | time.strftime("%X %x")) |
| 202 | str += ''.join(traceback.format_exception(type, value, tb)) |
| 203 | |
| 204 | sys.stderr.write("\n%s\n" % str) |
| 205 | |
| 206 | if _notify_email: |
| 207 | sender = "monitor_db" |
| 208 | subject = "monitor_db exception" |
| 209 | msg = "From: %s\nTo: %s\nSubject: %s\n\n%s" % ( |
| 210 | sender, _notify_email, subject, str) |
| 211 | mailer = smtplib.SMTP('localhost') |
| 212 | mailer.sendmail(sender, _notify_email, msg) |
| 213 | mailer.quit() |
| 214 | |
| 215 | |
| 216 | class Dispatcher: |
| 217 | def __init__(self, do_recover=True): |
| 218 | self._agents = [] |
| 219 | self.shutting_down = False |
| 220 | |
| 221 | if do_recover: |
| 222 | self._recover_lost() |
| 223 | |
| 224 | |
| 225 | def shut_down(self): |
| 226 | print "Shutting down!" |
| 227 | self.shutting_down = True |
| 228 | while self._agents: |
| 229 | self.tick() |
| 230 | time.sleep(40) |
| 231 | |
| 232 | |
| 233 | def tick(self): |
| 234 | if not self.shutting_down: |
| 235 | self._find_more_work() |
| 236 | self._handle_agents() |
| 237 | |
| 238 | |
| 239 | def add_agent(self, agent): |
| 240 | self._agents.append(agent) |
| 241 | agent.dispatcher = self |
| 242 | |
| 243 | |
| 244 | def _recover_lost(self): |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 245 | rows = _db.execute("""SELECT * FROM host_queue_entries WHERE active AND NOT complete""") |
| 246 | if len(rows) > 0: |
| 247 | queue_entries = [HostQueueEntry(row=i) for i in rows] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 248 | for queue_entry in queue_entries: |
| 249 | job = queue_entry.job |
| 250 | if job.is_synchronous(): |
| 251 | for child_entry in job.get_host_queue_entries(): |
| 252 | child_entry.requeue() |
| 253 | else: |
| 254 | queue_entry.requeue() |
| 255 | queue_entry.clear_results_dir() |
| 256 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 257 | rows = _db.execute("""SELECT * FROM hosts |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 258 | WHERE status != 'Ready' AND NOT locked""") |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 259 | if len(rows) > 0: |
| 260 | hosts = [Host(row=i) for i in rows] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 261 | for host in hosts: |
| 262 | verify_task = VerifyTask(host = host) |
| 263 | self.add_agent(Agent(tasks = [verify_task])) |
| 264 | |
| 265 | |
| 266 | def _find_more_work(self): |
| 267 | print "finding work" |
| 268 | |
| 269 | num_started = 0 |
| 270 | for host in idle_hosts(): |
| 271 | tasks = host.next_queue_entries() |
| 272 | if tasks: |
| 273 | for next in tasks: |
| 274 | try: |
| 275 | agent = next.run(assigned_host=host) |
| 276 | if agent: |
| 277 | self.add_agent(agent) |
| 278 | |
| 279 | num_started += 1 |
| 280 | if num_started>=100: |
| 281 | return |
| 282 | break |
| 283 | except: |
| 284 | next.set_status('Failed') |
| 285 | |
| 286 | # if next.host: |
| 287 | # next.host.set_status('Ready') |
| 288 | |
| 289 | log_stacktrace("task_id = %d" % next.id) |
| 290 | |
| 291 | |
| 292 | def _handle_agents(self): |
| 293 | still_running = [] |
| 294 | for agent in self._agents: |
| 295 | agent.tick() |
| 296 | if not agent.is_done(): |
| 297 | still_running.append(agent) |
| 298 | else: |
| 299 | print "agent finished" |
| 300 | self._agents = still_running |
| 301 | |
| 302 | |
| 303 | class RunMonitor(object): |
| 304 | def __init__(self, cmd, nice_level = None, log_file = None): |
| 305 | self.nice_level = nice_level |
| 306 | self.log_file = log_file |
| 307 | self.proc = self.run(cmd) |
| 308 | |
| 309 | def run(self, cmd): |
| 310 | if self.nice_level: |
| 311 | nice_cmd = ['nice','-n', str(self.nice_level)] |
| 312 | nice_cmd.extend(cmd) |
| 313 | cmd = nice_cmd |
| 314 | |
| 315 | out_file = None |
| 316 | if self.log_file: |
| 317 | try: |
| 318 | out_file = open(self.log_file, 'a') |
| 319 | out_file.write("\n%s\n" % ('*'*80)) |
| 320 | out_file.write("%s> %s\n" % (time.strftime("%X %x"), cmd)) |
| 321 | out_file.write("%s\n" % ('*'*80)) |
| 322 | except: |
| 323 | pass |
| 324 | |
| 325 | if not out_file: |
| 326 | out_file = open('/dev/null', 'w') |
| 327 | |
| 328 | in_devnull = open('/dev/null', 'r') |
| 329 | print "cmd = %s" % cmd |
| 330 | print "path = %s" % os.getcwd() |
| 331 | |
| 332 | proc = subprocess.Popen(cmd, stdout=out_file, |
| 333 | stderr=subprocess.STDOUT, stdin=in_devnull) |
| 334 | out_file.close() |
| 335 | in_devnull.close() |
| 336 | return proc |
| 337 | |
| 338 | |
| 339 | def kill(self): |
| 340 | self.proc.kill() |
| 341 | |
| 342 | |
| 343 | def exit_code(self): |
| 344 | return self.proc.poll() |
| 345 | |
| 346 | |
| 347 | class Agent(object): |
| 348 | def __init__(self, tasks): |
| 349 | self.active_task = None |
| 350 | self.queue = Queue.Queue(0) |
| 351 | self.dispatcher = None |
| 352 | |
| 353 | for task in tasks: |
| 354 | self.add_task(task) |
| 355 | |
| 356 | |
| 357 | def add_task(self, task): |
| 358 | self.queue.put_nowait(task) |
| 359 | task.agent = self |
| 360 | |
| 361 | |
| 362 | def tick(self): |
| 363 | print "agent tick" |
| 364 | if self.active_task and not self.active_task.is_done(): |
| 365 | self.active_task.poll() |
| 366 | else: |
| 367 | self._next_task(); |
| 368 | |
| 369 | |
| 370 | def _next_task(self): |
| 371 | print "agent picking task" |
| 372 | if self.active_task: |
| 373 | assert self.active_task.is_done() |
| 374 | |
| 375 | if not self.active_task.success and self.active_task.failure_tasks: |
| 376 | self.queue = Queue.Queue(0) |
| 377 | for task in self.active_task.failure_tasks: |
| 378 | self.add_task(task) |
| 379 | |
| 380 | self.active_task = None |
| 381 | if not self.is_done(): |
| 382 | self.active_task = self.queue.get_nowait() |
| 383 | if self.active_task: |
| 384 | self.active_task.start() |
| 385 | |
| 386 | |
| 387 | def is_done(self): |
| 388 | return self.active_task == None and self.queue.empty() |
| 389 | |
| 390 | |
| 391 | def start(self): |
| 392 | assert self.dispatcher |
| 393 | |
| 394 | self._next_task() |
| 395 | |
| 396 | |
| 397 | class AgentTask(object): |
| 398 | def __init__(self, cmd, failure_tasks = None): |
| 399 | self.done = False |
| 400 | self.failure_tasks = failure_tasks |
| 401 | self.started = False |
| 402 | self.cmd = cmd |
| 403 | self.agent = None |
| 404 | |
| 405 | |
| 406 | def poll(self): |
| 407 | print "poll" |
| 408 | if hasattr(self, 'monitor'): |
| 409 | self.tick(self.monitor.exit_code()) |
| 410 | else: |
| 411 | self.finished(False) |
| 412 | |
| 413 | |
| 414 | def tick(self, exit_code): |
| 415 | if exit_code==None: |
| 416 | return |
| 417 | # print "exit_code was %d" % exit_code |
| 418 | if exit_code == 0: |
| 419 | success = True |
| 420 | else: |
| 421 | success = False |
| 422 | |
| 423 | self.finished(success) |
| 424 | |
| 425 | |
| 426 | def is_done(self): |
| 427 | return self.done |
| 428 | |
| 429 | |
| 430 | def finished(self, success): |
| 431 | self.done = True |
| 432 | self.success = success |
| 433 | self.epilog() |
| 434 | |
| 435 | |
| 436 | def prolog(self): |
| 437 | pass |
| 438 | |
| 439 | |
| 440 | def epilog(self): |
| 441 | pass |
| 442 | |
| 443 | |
| 444 | def start(self): |
| 445 | assert self.agent |
| 446 | |
| 447 | if not self.started: |
| 448 | self.prolog() |
| 449 | self.run() |
| 450 | |
| 451 | self.started = True |
| 452 | |
| 453 | |
| 454 | def abort(self): |
| 455 | self.monitor.kill() |
| 456 | |
| 457 | |
| 458 | def run(self): |
| 459 | if self.cmd: |
| 460 | print "agent starting monitor" |
| 461 | |
| 462 | log_file = None |
| 463 | if hasattr(self, 'host'): |
| 464 | log_file = os.path.join(os.path.join(RESULTS_DIR, 'hosts'), self.host.hostname) |
| 465 | |
| 466 | self.monitor = RunMonitor(self.cmd, nice_level = AUTOSERV_NICE_LEVEL, log_file = log_file) |
| 467 | |
| 468 | |
| 469 | class RepairTask(AgentTask): |
| 470 | def __init__(self, host): |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 471 | global _autoserv_path |
| 472 | cmd = [_autoserv_path ,'-n', '-R', '-m', host.hostname] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 473 | self.host = host |
| 474 | AgentTask.__init__(self, cmd) |
| 475 | |
| 476 | def prolog(self): |
| 477 | print "repair_task starting" |
| 478 | self.host.set_status('Repairing') |
| 479 | |
| 480 | |
| 481 | def epilog(self): |
| 482 | if self.success: |
| 483 | status = 'Ready' |
| 484 | else: |
| 485 | status = 'Repair Failed' |
| 486 | |
| 487 | self.host.set_status(status) |
| 488 | |
| 489 | |
| 490 | class VerifyTask(AgentTask): |
| 491 | def __init__(self, queue_entry=None, host=None): |
| 492 | assert bool(queue_entry) != bool(host) |
| 493 | |
| 494 | self.host = host or queue_entry.host |
| 495 | self.queue_entry = queue_entry |
| 496 | |
| 497 | self.temp_results_dir = tempfile.mkdtemp(suffix='.verify') |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 498 | global _autoserv_path |
| 499 | cmd = [_autoserv_path,'-n', '-v','-m',self.host.hostname, |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 500 | '-r', self.temp_results_dir] |
| 501 | |
| 502 | AgentTask.__init__(self, cmd, failure_tasks = [RepairTask(self.host)]) |
| 503 | |
| 504 | |
| 505 | def prolog(self): |
| 506 | print "starting verify on %s" % (self.host.hostname) |
| 507 | if self.queue_entry: |
| 508 | self.queue_entry.set_status('Verifying') |
| 509 | self.host.set_status('Verifying') |
| 510 | |
| 511 | |
| 512 | def epilog(self): |
| 513 | if self.queue_entry and (self.success or |
| 514 | not self.queue_entry.meta_host): |
| 515 | self.move_results() |
| 516 | else: |
| 517 | shutil.rmtree(self.temp_results_dir) |
| 518 | |
| 519 | if self.success: |
| 520 | status = 'Ready' |
| 521 | else: |
| 522 | status = 'Failed Verify' |
| 523 | if self.queue_entry: |
| 524 | if self.queue_entry.meta_host: |
| 525 | self.host.yield_work() |
| 526 | else: |
| 527 | self.queue_entry.set_status('Failed') |
| 528 | |
| 529 | self.host.set_status(status) |
| 530 | |
| 531 | |
| 532 | def move_results(self): |
| 533 | assert self.queue_entry is not None |
| 534 | target_dir = self.queue_entry.results_dir() |
| 535 | if self.queue_entry.job.is_synchronous(): |
| 536 | target_dir = os.path.join(target_dir, |
| 537 | self.queue_entry.host.hostname) |
| 538 | if not os.path.exists(target_dir): |
| 539 | os.makedirs(target_dir) |
| 540 | files = os.listdir(self.temp_results_dir) |
| 541 | for filename in files: |
| 542 | shutil.move(os.path.join(self.temp_results_dir, |
| 543 | filename), |
| 544 | os.path.join(target_dir, filename)) |
| 545 | |
| 546 | |
| 547 | class VerifySynchronousTask(VerifyTask): |
| 548 | def __init__(self, queue_entry): |
| 549 | VerifyTask.__init__(self, queue_entry = queue_entry) |
| 550 | |
| 551 | |
| 552 | def epilog(self): |
| 553 | VerifyTask.epilog(self) |
| 554 | print "verify_synchronous finished: %s/%s" % (self.queue_entry.host.hostname, self.success) |
| 555 | if self.success: |
| 556 | if self.queue_entry.job.num_complete()==0: |
| 557 | self.queue_entry.set_status('Pending') |
| 558 | |
| 559 | job = self.queue_entry.job |
| 560 | if job.is_ready(): |
| 561 | self.agent.dispatcher.add_agent(job.run(self.queue_entry)) |
| 562 | else: |
| 563 | self.queue_entry.set_status('Stopped') # some other entry failed verify |
mbligh | 8ce2c4a | 2008-02-29 22:44:53 +0000 | [diff] [blame] | 564 | else: |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 565 | if self.queue_entry.meta_host: |
| 566 | self.queue_entry.set_status('Queued') |
| 567 | else: |
mbligh | 8ce2c4a | 2008-02-29 22:44:53 +0000 | [diff] [blame] | 568 | # VerifyTask.epilog() set this queue entry to |
| 569 | # failed, so it won't be set to stopped |
| 570 | self.stop_all_entries() |
| 571 | |
| 572 | |
| 573 | def stop_all_entries(self): |
| 574 | job = self.queue_entry.job |
| 575 | for child_entry in job.get_host_queue_entries(): |
| 576 | if not child_entry.complete: |
| 577 | child_entry.set_status('Stopped') |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 578 | |
| 579 | |
| 580 | class QueueTask(AgentTask): |
| 581 | def __init__(self, job, queue_entries, cmd): |
| 582 | AgentTask.__init__(self, cmd) |
| 583 | self.job = job |
| 584 | self.queue_entries = queue_entries |
| 585 | |
| 586 | |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 587 | @staticmethod |
| 588 | def _write_keyval(queue_entry, field, value): |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 589 | key_path = os.path.join(queue_entry.results_dir(), 'keyval') |
| 590 | keyval_file = open(key_path, 'a') |
| 591 | print >> keyval_file, '%s=%d' % (field, value) |
| 592 | keyval_file.close() |
| 593 | |
| 594 | |
| 595 | def prolog(self): |
| 596 | for queue_entry in self.queue_entries: |
| 597 | print "starting queue_task on %s/%s" % (queue_entry.host.hostname, queue_entry.id) |
| 598 | queue_entry.set_status('Running') |
| 599 | queue_entry.host.set_status('Running') |
| 600 | # write some job timestamps into the job keyval file |
| 601 | queued = time.mktime(self.job.created_on.timetuple()) |
| 602 | started = time.time() |
| 603 | self._write_keyval(queue_entry, "job_queued", queued) |
| 604 | self._write_keyval(queue_entry, "job_started", started) |
| 605 | |
| 606 | |
| 607 | def epilog(self): |
| 608 | if self.success: |
| 609 | status = 'Completed' |
| 610 | else: |
| 611 | status = 'Failed' |
| 612 | |
| 613 | for queue_entry in self.queue_entries: |
| 614 | queue_entry.set_status(status) |
| 615 | queue_entry.host.set_status('Ready') |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 616 | # write another timestamp into the job keyval file |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 617 | finished = time.time() |
| 618 | self._write_keyval(queue_entry, "job_finished", |
| 619 | finished) |
| 620 | |
| 621 | if self.job.is_synchronous() or self.job.num_machines()==1: |
| 622 | if self.job.is_finished(): |
| 623 | parse_results(self.job.results_dir()) |
| 624 | else: |
| 625 | for queue_entry in self.queue_entries: |
| 626 | parse_results(queue_entry.results_dir(), flags='-l 2') |
| 627 | |
| 628 | print "queue_task finished with %s/%s" % (status, self.success) |
| 629 | |
| 630 | |
| 631 | class RebootTask(AgentTask): |
| 632 | def __init__(self): |
| 633 | AgentTask.__init__(self, host) |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 634 | global _autoserv_path |
| 635 | self.cmd = "%s -n -b -m %s /dev/null" % (_autoserv_path, host) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 636 | self.host = host |
| 637 | |
| 638 | |
| 639 | def tick(self, exit_code): |
| 640 | raise "not implemented" |
| 641 | |
| 642 | |
| 643 | def run(self): |
| 644 | raise "not implemented" |
| 645 | |
| 646 | |
| 647 | |
| 648 | class DBObject(object): |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 649 | def __init__(self, table, fields, id=None, row=None, new_record=False): |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 650 | assert (bool(id) != bool(row)) and table and fields |
| 651 | |
| 652 | self.__table = table |
| 653 | self.__fields = fields |
| 654 | |
| 655 | self.__new_record = new_record |
| 656 | |
| 657 | if row is None: |
| 658 | sql = 'SELECT * FROM %s WHERE ID=%%s' % self.__table |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 659 | rows = _db.execute(sql, (id,)) |
| 660 | if len(rows) == 0: |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 661 | raise "row not found (table=%s, id=%s)" % \ |
| 662 | (self.__table, id) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 663 | row = rows[0] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 664 | |
| 665 | assert len(row)==len(fields), "table = %s, row = %s/%d, fields = %s/%d" % (table, row, len(row), fields, len(fields)) |
| 666 | |
| 667 | self.__valid_fields = {} |
| 668 | for i,value in enumerate(row): |
| 669 | self.__dict__[fields[i]] = value |
| 670 | self.__valid_fields[fields[i]] = True |
| 671 | |
| 672 | del self.__valid_fields['id'] |
| 673 | |
| 674 | def count(self, where, table = None): |
| 675 | if not table: |
| 676 | table = self.__table |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 677 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 678 | rows = _db.execute(""" |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 679 | SELECT count(*) FROM %s |
| 680 | WHERE %s |
| 681 | """ % (table, where)) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 682 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 683 | assert len(rows) == 1 |
| 684 | |
| 685 | return int(rows[0][0]) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 686 | |
| 687 | |
| 688 | def num_cols(self): |
| 689 | return len(self.__fields) |
| 690 | |
| 691 | |
| 692 | def update_field(self, field, value): |
| 693 | assert self.__valid_fields[field] |
| 694 | |
| 695 | if self.__dict__[field] == value: |
| 696 | return |
| 697 | |
| 698 | query = "UPDATE %s SET %s = %%s WHERE id = %%s" % \ |
| 699 | (self.__table, field) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 700 | _db.execute(query, (value, self.id)) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 701 | |
| 702 | self.__dict__[field] = value |
| 703 | |
| 704 | |
| 705 | def save(self): |
| 706 | if self.__new_record: |
| 707 | keys = self.__fields[1:] # avoid id |
| 708 | columns = ','.join([str(key) for key in keys]) |
| 709 | values = ['"%s"' % self.__dict__[key] for key in keys] |
| 710 | values = ','.join(values) |
| 711 | query = """INSERT INTO %s (%s) VALUES (%s)""" % \ |
| 712 | (self.__table, columns, values) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 713 | _db.execute(query) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 714 | |
| 715 | |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 716 | |
| 717 | class IneligibleHostQueue(DBObject): |
| 718 | def __init__(self, id=None, row=None, new_record=None): |
| 719 | fields = ['id', 'job_id', 'host_id'] |
| 720 | DBObject.__init__(self, 'ineligible_host_queues', fields, |
| 721 | id=id, row=row, new_record=new_record) |
| 722 | |
| 723 | |
| 724 | class Host(DBObject): |
| 725 | def __init__(self, id=None, row=None): |
| 726 | fields = ['id', 'hostname', 'locked', 'synch_id','status'] |
| 727 | DBObject.__init__(self, 'hosts',fields, id=id, row=row) |
| 728 | |
| 729 | |
| 730 | |
| 731 | def current_task(self): |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 732 | rows = _db.execute(""" |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 733 | SELECT * FROM host_queue_entries WHERE host_id=%s AND NOT complete AND active |
| 734 | """, (self.id,)) |
| 735 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 736 | if len(rows) == 0: |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 737 | return None |
| 738 | else: |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 739 | assert len(rows) == 1 |
| 740 | results = rows[0]; |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 741 | # print "current = %s" % results |
| 742 | return HostQueueEntry(row=results) |
| 743 | |
| 744 | |
| 745 | def next_queue_entries(self): |
| 746 | if self.locked: |
| 747 | print "%s locked, not queuing" % self.hostname |
| 748 | return None |
| 749 | # print "%s/%s looking for work" % (self.hostname, self.platform_id) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 750 | rows = _db.execute(""" |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 751 | SELECT * FROM host_queue_entries |
| 752 | WHERE ((host_id=%s) OR (meta_host IS NOT null AND |
| 753 | (meta_host IN ( |
| 754 | SELECT label_id FROM hosts_labels WHERE host_id=%s |
| 755 | ) |
| 756 | ) |
| 757 | AND job_id NOT IN ( |
| 758 | SELECT job_id FROM ineligible_host_queues |
| 759 | WHERE host_id=%s |
| 760 | ))) |
| 761 | AND NOT complete AND NOT active |
| 762 | ORDER BY priority DESC, meta_host, id |
| 763 | LIMIT 1 |
| 764 | """, (self.id,self.id, self.id)) |
| 765 | |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 766 | if len(rows) == 0: |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 767 | return None |
| 768 | else: |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 769 | return [HostQueueEntry(row=i) for i in rows] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 770 | |
| 771 | def yield_work(self): |
| 772 | print "%s yielding work" % self.hostname |
| 773 | if self.current_task(): |
| 774 | self.current_task().requeue() |
| 775 | |
| 776 | def set_status(self,status): |
| 777 | self.update_field('status',status) |
| 778 | |
| 779 | |
| 780 | class HostQueueEntry(DBObject): |
| 781 | def __init__(self, id=None, row=None): |
| 782 | assert id or row |
| 783 | fields = ['id', 'job_id', 'host_id', 'priority', 'status', |
| 784 | 'meta_host', 'active', 'complete'] |
| 785 | DBObject.__init__(self, 'host_queue_entries', fields, id=id, |
| 786 | row=row) |
| 787 | |
| 788 | self.job = Job(self.job_id) |
| 789 | |
| 790 | if self.host_id: |
| 791 | self.host = Host(self.host_id) |
| 792 | else: |
| 793 | self.host = None |
| 794 | |
| 795 | self.queue_log_path = os.path.join(self.job.results_dir(), |
| 796 | 'queue.log.' + str(self.id)) |
| 797 | |
| 798 | |
| 799 | def set_host(self, host): |
| 800 | if host: |
| 801 | self.queue_log_record('Assigning host ' + host.hostname) |
| 802 | self.update_field('host_id', host.id) |
| 803 | self.update_field('active', True) |
| 804 | else: |
| 805 | self.queue_log_record('Releasing host') |
| 806 | self.update_field('host_id', None) |
| 807 | |
| 808 | self.host = host |
| 809 | |
| 810 | |
| 811 | def get_host(self): |
| 812 | if not self.host: |
| 813 | if self.host_id: |
| 814 | self.host = Host(self.host_id) |
| 815 | if self.host: |
| 816 | return self.host |
| 817 | else: |
| 818 | return None |
| 819 | |
| 820 | |
| 821 | def queue_log_record(self, log_line): |
| 822 | queue_log = open(self.queue_log_path, 'a', 0) |
| 823 | queue_log.write(log_line + '\n') |
| 824 | queue_log.close() |
| 825 | |
| 826 | |
| 827 | def results_dir(self): |
| 828 | if self.job.num_machines()==1 or self.job.is_synchronous(): |
| 829 | results_dir = self.job.job_dir |
| 830 | else: |
| 831 | assert self.host |
| 832 | results_dir = '%s/%s' % (self.job.job_dir, |
| 833 | self.host.hostname) |
| 834 | |
| 835 | return results_dir |
| 836 | |
| 837 | |
| 838 | def set_status(self, status): |
| 839 | self.update_field('status', status) |
| 840 | if self.host: |
| 841 | hostname = self.host.hostname |
| 842 | else: |
| 843 | hostname = 'no host' |
| 844 | print "%s/%d status -> %s" % (hostname, self.id, self.status) |
| 845 | if status in ['Queued']: |
| 846 | self.update_field('complete', False) |
| 847 | self.update_field('active', False) |
| 848 | |
| 849 | if status in ['Pending', 'Running', 'Verifying', 'Starting']: |
| 850 | self.update_field('complete', False) |
| 851 | self.update_field('active', True) |
| 852 | |
| 853 | if status in ['Failed', 'Completed', 'Stopped']: |
| 854 | self.update_field('complete', True) |
| 855 | self.update_field('active', False) |
| 856 | |
| 857 | |
| 858 | def run(self,assigned_host=None): |
| 859 | if self.meta_host: |
| 860 | assert assigned_host |
| 861 | self.job.create_results_dir() |
| 862 | self.set_host(assigned_host) |
| 863 | print "creating block %s/%s" % (self.job.id, |
| 864 | self.host.id) |
| 865 | |
| 866 | row = [0, self.job.id, self.host.id] |
| 867 | block = IneligibleHostQueue(row=row, new_record=True) |
| 868 | block.save() |
| 869 | |
| 870 | print "%s/%s scheduled on %s, status=%s" % (self.job.name, |
| 871 | self.meta_host, self.host.hostname, self.status) |
| 872 | |
| 873 | return self.job.run(queue_entry=self) |
| 874 | |
| 875 | def requeue(self): |
| 876 | self.set_status('Queued') |
| 877 | |
| 878 | if self.meta_host: |
| 879 | self.set_host(None) |
| 880 | |
| 881 | |
| 882 | def clear_results_dir(self): |
| 883 | if os.path.exists(self.results_dir()): |
| 884 | shutil.rmtree(self.results_dir()) |
| 885 | |
| 886 | |
| 887 | class Job(DBObject): |
| 888 | def __init__(self, id=None, row=None): |
| 889 | assert id or row |
| 890 | DBObject.__init__(self,'jobs',['id','owner','name','priority','control_file', |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 891 | 'control_type','created_on', 'synch_type', 'synch_count', |
| 892 | 'synchronizing' ], id=id, row=row) |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 893 | |
| 894 | self.job_dir = os.path.join(RESULTS_DIR, "%s-%s" % (self.id, self.owner)) |
| 895 | |
| 896 | |
| 897 | def is_server_job(self): |
| 898 | return self.control_type != 2 |
| 899 | |
| 900 | |
| 901 | def get_host_queue_entries(self): |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 902 | rows = _db.execute(""" |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 903 | SELECT * FROM host_queue_entries |
| 904 | WHERE job_id= %s |
| 905 | """, (self.id,)) |
mbligh | 6f8bab4 | 2008-02-29 22:45:14 +0000 | [diff] [blame^] | 906 | entries = [HostQueueEntry(row=i) for i in rows] |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 907 | |
| 908 | assert len(entries)>0 |
| 909 | |
| 910 | return entries |
| 911 | |
| 912 | |
| 913 | def set_status(self, status, update_queues=False): |
| 914 | self.update_field('status',status) |
| 915 | |
| 916 | if update_queues: |
| 917 | for queue_entry in self.get_host_queue_entries(): |
| 918 | queue_entry.set_status(status) |
| 919 | |
| 920 | |
| 921 | def is_synchronous(self): |
| 922 | return self.synch_type == 2 |
| 923 | |
| 924 | |
| 925 | def is_ready(self): |
| 926 | if not self.is_synchronous(): |
| 927 | return True |
| 928 | sql = "job_id=%s AND status='Pending'" % self.id |
| 929 | count = self.count(sql, table='host_queue_entries') |
| 930 | return (count == self.synch_count) |
| 931 | |
| 932 | |
| 933 | def ready_to_synchronize(self): |
| 934 | # heuristic |
| 935 | queue_entries = self.get_host_queue_entries() |
| 936 | count = 0 |
| 937 | for queue_entry in queue_entries: |
| 938 | if queue_entry.status == 'Pending': |
| 939 | count += 1 |
| 940 | |
| 941 | return (count/self.synch_count >= 0.5) |
| 942 | |
| 943 | |
| 944 | def start_synchronizing(self): |
| 945 | self.update_field('synchronizing', True) |
| 946 | |
| 947 | |
| 948 | def results_dir(self): |
| 949 | return self.job_dir |
| 950 | |
| 951 | def num_machines(self, clause = None): |
| 952 | sql = "job_id=%s" % self.id |
| 953 | if clause: |
| 954 | sql += " AND (%s)" % clause |
| 955 | return self.count(sql, table='host_queue_entries') |
| 956 | |
| 957 | |
| 958 | def num_queued(self): |
| 959 | return self.num_machines('not complete') |
| 960 | |
| 961 | |
| 962 | def num_active(self): |
| 963 | return self.num_machines('active') |
| 964 | |
| 965 | |
| 966 | def num_complete(self): |
| 967 | return self.num_machines('complete') |
| 968 | |
| 969 | |
| 970 | def is_finished(self): |
| 971 | left = self.num_queued() |
| 972 | print "%s: %s machines left" % (self.name, left) |
| 973 | return left==0 |
| 974 | |
| 975 | def stop_synchronizing(self): |
| 976 | self.update_field('synchronizing', False) |
| 977 | self.set_status('Queued', update_queues = False) |
| 978 | |
| 979 | |
| 980 | def write_machines_file(self): |
| 981 | if self.num_machines()>1: |
| 982 | print "writing machines file" |
| 983 | mf = open("%s/.machines" % self.job_dir, 'w') |
| 984 | for queue_entry in self.get_host_queue_entries(): |
| 985 | if queue_entry.get_host(): |
| 986 | mf.write("%s\n" % \ |
| 987 | queue_entry.get_host().hostname) |
| 988 | mf.close() |
| 989 | |
| 990 | |
| 991 | def create_results_dir(self, queue_entry=None): |
| 992 | print "create: active: %s complete %s" % (self.num_active(), |
| 993 | self.num_complete()) |
| 994 | |
| 995 | if not os.path.exists(self.job_dir): |
| 996 | os.makedirs(self.job_dir) |
| 997 | |
| 998 | if queue_entry: |
| 999 | return queue_entry.results_dir() |
| 1000 | return self.job_dir |
| 1001 | |
| 1002 | |
| 1003 | def run(self, queue_entry): |
| 1004 | results_dir = self.create_results_dir(queue_entry) |
| 1005 | |
| 1006 | if self.is_synchronous(): |
| 1007 | if not self.is_ready(): |
| 1008 | return Agent([VerifySynchronousTask(queue_entry = queue_entry)]) |
| 1009 | |
| 1010 | queue_entry.set_status('Starting') |
| 1011 | |
| 1012 | ctrl = open(os.tmpnam(), 'w') |
| 1013 | if self.control_file: |
| 1014 | ctrl.write(self.control_file) |
| 1015 | else: |
| 1016 | ctrl.write("") |
| 1017 | ctrl.flush() |
| 1018 | |
| 1019 | if self.is_synchronous(): |
| 1020 | if self.num_machines() > 1: |
| 1021 | self.write_machines_file() |
| 1022 | hosts = self.get_host_queue_entries() |
| 1023 | hostnames = ','.join([i.host.hostname for i in hosts]) |
| 1024 | queue_entries = self.get_host_queue_entries() |
| 1025 | else: |
| 1026 | assert queue_entry |
| 1027 | hostnames = queue_entry.host.hostname |
| 1028 | queue_entries = [queue_entry] |
| 1029 | |
mbligh | 4314a71 | 2008-02-29 22:44:30 +0000 | [diff] [blame] | 1030 | global _autoserv_path |
| 1031 | params = [_autoserv_path, '-n', '-r', results_dir, |
mbligh | 36768f0 | 2008-02-22 18:28:33 +0000 | [diff] [blame] | 1032 | '-b', '-u', self.owner, '-l', self.name, |
| 1033 | '-m', hostnames, ctrl.name] |
| 1034 | |
| 1035 | if not self.is_server_job(): |
| 1036 | params.append('-c') |
| 1037 | |
| 1038 | tasks = [] |
| 1039 | if not self.is_synchronous(): |
| 1040 | tasks.append(VerifyTask(queue_entry)) |
| 1041 | |
| 1042 | tasks.append(QueueTask(job = self, queue_entries = queue_entries, cmd = params)) |
| 1043 | |
| 1044 | agent = Agent(tasks) |
| 1045 | |
| 1046 | return agent |
| 1047 | |
| 1048 | |
| 1049 | if __name__ == '__main__': |
| 1050 | main() |