Revision 85f03e0d
| b/lib/jqueue.py | ||
|---|---|---|
| 50 | 50 |
of the form (timestamp, level, message). |
| 51 | 51 |
|
| 52 | 52 |
""" |
| 53 |
def __init__(self, op): |
|
| 54 |
self.__Setup(op, constants.OP_STATUS_QUEUED, None, []) |
|
| 53 |
def __new__(cls, *args, **kwargs): |
|
| 54 |
obj = object.__new__(cls, *args, **kwargs) |
|
| 55 |
# Create a special lock for logging |
|
| 56 |
obj._log_lock = threading.Lock() |
|
| 57 |
return obj |
|
| 55 | 58 |
|
| 56 |
def __Setup(self, input_, status, result, log): |
|
| 57 |
self._lock = threading.Lock() |
|
| 58 |
self.input = input_ |
|
| 59 |
self.status = status |
|
| 60 |
self.result = result |
|
| 61 |
self.log = log |
|
| 59 |
def __init__(self, op): |
|
| 60 |
self.input = op |
|
| 61 |
self.status = constants.OP_STATUS_QUEUED |
|
| 62 |
self.result = None |
|
| 63 |
self.log = [] |
|
| 62 | 64 |
|
| 63 | 65 |
@classmethod |
| 64 | 66 |
def Restore(cls, state): |
| 65 |
obj = object.__new__(cls) |
|
| 66 |
obj.__Setup(opcodes.OpCode.LoadOpCode(state["input"]), |
|
| 67 |
state["status"], state["result"], state["log"]) |
|
| 67 |
obj = _QueuedOpCode.__new__(cls) |
|
| 68 |
obj.input = opcodes.OpCode.LoadOpCode(state["input"]) |
|
| 69 |
obj.status = state["status"] |
|
| 70 |
obj.result = state["result"] |
|
| 71 |
obj.log = state["log"] |
|
| 68 | 72 |
return obj |
| 69 | 73 |
|
| 70 |
@utils.LockedMethod |
|
| 71 | 74 |
def Serialize(self): |
| 72 |
return {
|
|
| 73 |
"input": self.input.__getstate__(), |
|
| 74 |
"status": self.status, |
|
| 75 |
"result": self.result, |
|
| 76 |
"log": self.log, |
|
| 77 |
} |
|
| 78 |
|
|
| 79 |
@utils.LockedMethod |
|
| 80 |
def GetInput(self): |
|
| 81 |
"""Returns the original opcode. |
|
| 82 |
|
|
| 83 |
""" |
|
| 84 |
return self.input |
|
| 85 |
|
|
| 86 |
@utils.LockedMethod |
|
| 87 |
def SetStatus(self, status, result): |
|
| 88 |
"""Update the opcode status and result. |
|
| 89 |
|
|
| 90 |
""" |
|
| 91 |
self.status = status |
|
| 92 |
self.result = result |
|
| 93 |
|
|
| 94 |
@utils.LockedMethod |
|
| 95 |
def GetStatus(self): |
|
| 96 |
"""Get the opcode status. |
|
| 97 |
|
|
| 98 |
""" |
|
| 99 |
return self.status |
|
| 100 |
|
|
| 101 |
@utils.LockedMethod |
|
| 102 |
def GetResult(self): |
|
| 103 |
"""Get the opcode result. |
|
| 104 |
|
|
| 105 |
""" |
|
| 106 |
return self.result |
|
| 75 |
self._log_lock.acquire() |
|
| 76 |
try: |
|
| 77 |
return {
|
|
| 78 |
"input": self.input.__getstate__(), |
|
| 79 |
"status": self.status, |
|
| 80 |
"result": self.result, |
|
| 81 |
"log": self.log, |
|
| 82 |
} |
|
| 83 |
finally: |
|
| 84 |
self._log_lock.release() |
|
| 107 | 85 |
|
| 108 |
@utils.LockedMethod |
|
| 109 | 86 |
def Log(self, *args): |
| 110 | 87 |
"""Append a log entry. |
| 111 | 88 |
|
| 112 | 89 |
""" |
| 113 |
assert len(args) < 2
|
|
| 90 |
assert len(args) < 3
|
|
| 114 | 91 |
|
| 115 | 92 |
if len(args) == 1: |
| 116 | 93 |
log_type = constants.ELOG_MESSAGE |
| 117 | 94 |
log_msg = args[0] |
| 118 | 95 |
else: |
| 119 | 96 |
log_type, log_msg = args |
| 120 |
self.log.append((time.time(), log_type, log_msg)) |
|
| 121 | 97 |
|
| 122 |
@utils.LockedMethod |
|
| 98 |
self._log_lock.acquire() |
|
| 99 |
try: |
|
| 100 |
self.log.append((time.time(), log_type, log_msg)) |
|
| 101 |
finally: |
|
| 102 |
self._log_lock.release() |
|
| 103 |
|
|
| 123 | 104 |
def RetrieveLog(self, start_at=0): |
| 124 | 105 |
"""Retrieve (a part of) the execution log. |
| 125 | 106 |
|
| 126 | 107 |
""" |
| 127 |
return self.log[start_at:] |
|
| 108 |
self._log_lock.acquire() |
|
| 109 |
try: |
|
| 110 |
return self.log[start_at:] |
|
| 111 |
finally: |
|
| 112 |
self._log_lock.release() |
|
| 128 | 113 |
|
| 129 | 114 |
|
| 130 | 115 |
class _QueuedJob(object): |
| ... | ... | |
| 133 | 118 |
This is what we use to track the user-submitted jobs. |
| 134 | 119 |
|
| 135 | 120 |
""" |
| 136 |
def __init__(self, storage, job_id, ops):
|
|
| 121 |
def __init__(self, queue, job_id, ops):
|
|
| 137 | 122 |
if not ops: |
| 138 | 123 |
# TODO |
| 139 | 124 |
raise Exception("No opcodes")
|
| 140 | 125 |
|
| 141 |
self.__Setup(storage, job_id, [_QueuedOpCode(op) for op in ops], -1) |
|
| 142 |
|
|
| 143 |
def __Setup(self, storage, job_id, ops, run_op_index): |
|
| 144 |
self._lock = threading.Lock() |
|
| 145 |
self.storage = storage |
|
| 126 |
self.queue = queue |
|
| 146 | 127 |
self.id = job_id |
| 147 |
self._ops = ops
|
|
| 148 |
self.run_op_index = run_op_index
|
|
| 128 |
self.ops = [_QueuedOpCode(op) for op in ops]
|
|
| 129 |
self.run_op_index = -1
|
|
| 149 | 130 |
|
| 150 | 131 |
@classmethod |
| 151 |
def Restore(cls, storage, state): |
|
| 152 |
obj = object.__new__(cls) |
|
| 153 |
op_list = [_QueuedOpCode.Restore(op_state) for op_state in state["ops"]] |
|
| 154 |
obj.__Setup(storage, state["id"], op_list, state["run_op_index"]) |
|
| 132 |
def Restore(cls, queue, state): |
|
| 133 |
obj = _QueuedJob.__new__(cls) |
|
| 134 |
obj.queue = queue |
|
| 135 |
obj.id = state["id"] |
|
| 136 |
obj.ops = [_QueuedOpCode.Restore(op_state) for op_state in state["ops"]] |
|
| 137 |
obj.run_op_index = state["run_op_index"] |
|
| 155 | 138 |
return obj |
| 156 | 139 |
|
| 157 | 140 |
def Serialize(self): |
| 158 | 141 |
return {
|
| 159 | 142 |
"id": self.id, |
| 160 |
"ops": [op.Serialize() for op in self._ops],
|
|
| 143 |
"ops": [op.Serialize() for op in self.ops], |
|
| 161 | 144 |
"run_op_index": self.run_op_index, |
| 162 | 145 |
} |
| 163 | 146 |
|
| 164 |
def _SetStatus(self, status, msg): |
|
| 165 |
try: |
|
| 166 |
for op in self._ops: |
|
| 167 |
op.SetStatus(status, msg) |
|
| 168 |
finally: |
|
| 169 |
self.storage.UpdateJob(self) |
|
| 170 |
|
|
| 171 |
def SetUnclean(self, msg): |
|
| 172 |
return self._SetStatus(constants.OP_STATUS_ERROR, msg) |
|
| 173 |
|
|
| 174 |
def SetCanceled(self, msg): |
|
| 175 |
return self._SetStatus(constants.JOB_STATUS_CANCELED, msg) |
|
| 176 |
|
|
| 177 |
def GetStatus(self): |
|
| 147 |
def CalcStatus(self): |
|
| 178 | 148 |
status = constants.JOB_STATUS_QUEUED |
| 179 | 149 |
|
| 180 | 150 |
all_success = True |
| 181 |
for op in self._ops: |
|
| 182 |
op_status = op.GetStatus() |
|
| 183 |
if op_status == constants.OP_STATUS_SUCCESS: |
|
| 151 |
for op in self.ops: |
|
| 152 |
if op.status == constants.OP_STATUS_SUCCESS: |
|
| 184 | 153 |
continue |
| 185 | 154 |
|
| 186 | 155 |
all_success = False |
| 187 | 156 |
|
| 188 |
if op_status == constants.OP_STATUS_QUEUED:
|
|
| 157 |
if op.status == constants.OP_STATUS_QUEUED:
|
|
| 189 | 158 |
pass |
| 190 |
elif op_status == constants.OP_STATUS_RUNNING:
|
|
| 159 |
elif op.status == constants.OP_STATUS_RUNNING:
|
|
| 191 | 160 |
status = constants.JOB_STATUS_RUNNING |
| 192 |
elif op_status == constants.OP_STATUS_ERROR:
|
|
| 161 |
elif op.status == constants.OP_STATUS_ERROR:
|
|
| 193 | 162 |
status = constants.JOB_STATUS_ERROR |
| 194 | 163 |
# The whole job fails if one opcode failed |
| 195 | 164 |
break |
| 196 |
elif op_status == constants.OP_STATUS_CANCELED:
|
|
| 165 |
elif op.status == constants.OP_STATUS_CANCELED:
|
|
| 197 | 166 |
status = constants.OP_STATUS_CANCELED |
| 198 | 167 |
break |
| 199 | 168 |
|
| ... | ... | |
| 202 | 171 |
|
| 203 | 172 |
return status |
| 204 | 173 |
|
| 205 |
@utils.LockedMethod |
|
| 206 |
def GetRunOpIndex(self): |
|
| 207 |
return self.run_op_index |
|
| 208 | 174 |
|
| 209 |
def Run(self, proc): |
|
| 175 |
class _JobQueueWorker(workerpool.BaseWorker): |
|
| 176 |
def RunTask(self, job): |
|
| 210 | 177 |
"""Job executor. |
| 211 | 178 |
|
| 212 |
This functions processes a this job in the context of given processor |
|
| 213 |
instance. |
|
| 214 |
|
|
| 215 |
Args: |
|
| 216 |
- proc: Ganeti Processor to run the job with |
|
| 179 |
This functions processes a job. |
|
| 217 | 180 |
|
| 218 | 181 |
""" |
| 219 |
try: |
|
| 220 |
count = len(self._ops) |
|
| 221 |
for idx, op in enumerate(self._ops): |
|
| 222 |
try: |
|
| 223 |
logging.debug("Op %s/%s: Starting %s", idx + 1, count, op)
|
|
| 224 |
|
|
| 225 |
self._lock.acquire() |
|
| 226 |
try: |
|
| 227 |
self.run_op_index = idx |
|
| 228 |
finally: |
|
| 229 |
self._lock.release() |
|
| 230 |
|
|
| 231 |
op.SetStatus(constants.OP_STATUS_RUNNING, None) |
|
| 232 |
self.storage.UpdateJob(self) |
|
| 233 |
|
|
| 234 |
result = proc.ExecOpCode(op.input, op.Log) |
|
| 235 |
|
|
| 236 |
op.SetStatus(constants.OP_STATUS_SUCCESS, result) |
|
| 237 |
self.storage.UpdateJob(self) |
|
| 238 |
logging.debug("Op %s/%s: Successfully finished %s",
|
|
| 239 |
idx + 1, count, op) |
|
| 240 |
except Exception, err: |
|
| 241 |
try: |
|
| 242 |
op.SetStatus(constants.OP_STATUS_ERROR, str(err)) |
|
| 243 |
logging.debug("Op %s/%s: Error in %s", idx + 1, count, op)
|
|
| 244 |
finally: |
|
| 245 |
self.storage.UpdateJob(self) |
|
| 246 |
raise |
|
| 247 |
|
|
| 248 |
except errors.GenericError, err: |
|
| 249 |
logging.exception("Ganeti exception")
|
|
| 250 |
except: |
|
| 251 |
logging.exception("Unhandled exception")
|
|
| 252 |
|
|
| 253 |
|
|
| 254 |
class _JobQueueWorker(workerpool.BaseWorker): |
|
| 255 |
def RunTask(self, job): |
|
| 256 | 182 |
logging.debug("Worker %s processing job %s",
|
| 257 | 183 |
self.worker_id, job.id) |
| 258 |
# TODO: feedback function |
|
| 259 | 184 |
proc = mcpu.Processor(self.pool.context) |
| 185 |
queue = job.queue |
|
| 260 | 186 |
try: |
| 261 |
job.Run(proc) |
|
| 187 |
try: |
|
| 188 |
count = len(job.ops) |
|
| 189 |
for idx, op in enumerate(job.ops): |
|
| 190 |
try: |
|
| 191 |
logging.debug("Op %s/%s: Starting %s", idx + 1, count, op)
|
|
| 192 |
|
|
| 193 |
queue.acquire() |
|
| 194 |
try: |
|
| 195 |
job.run_op_index = idx |
|
| 196 |
op.status = constants.OP_STATUS_RUNNING |
|
| 197 |
op.result = None |
|
| 198 |
queue.UpdateJobUnlocked(job) |
|
| 199 |
|
|
| 200 |
input = op.input |
|
| 201 |
finally: |
|
| 202 |
queue.release() |
|
| 203 |
|
|
| 204 |
result = proc.ExecOpCode(input, op.Log) |
|
| 205 |
|
|
| 206 |
queue.acquire() |
|
| 207 |
try: |
|
| 208 |
op.status = constants.OP_STATUS_SUCCESS |
|
| 209 |
op.result = result |
|
| 210 |
queue.UpdateJobUnlocked(job) |
|
| 211 |
finally: |
|
| 212 |
queue.release() |
|
| 213 |
|
|
| 214 |
logging.debug("Op %s/%s: Successfully finished %s",
|
|
| 215 |
idx + 1, count, op) |
|
| 216 |
except Exception, err: |
|
| 217 |
queue.acquire() |
|
| 218 |
try: |
|
| 219 |
try: |
|
| 220 |
op.status = constants.OP_STATUS_ERROR |
|
| 221 |
op.result = str(err) |
|
| 222 |
logging.debug("Op %s/%s: Error in %s", idx + 1, count, op)
|
|
| 223 |
finally: |
|
| 224 |
queue.UpdateJobUnlocked(job) |
|
| 225 |
finally: |
|
| 226 |
queue.release() |
|
| 227 |
raise |
|
| 228 |
|
|
| 229 |
except errors.GenericError, err: |
|
| 230 |
logging.exception("Ganeti exception")
|
|
| 231 |
except: |
|
| 232 |
logging.exception("Unhandled exception")
|
|
| 262 | 233 |
finally: |
| 234 |
queue.acquire() |
|
| 235 |
try: |
|
| 236 |
job_id = job.id |
|
| 237 |
status = job.CalcStatus() |
|
| 238 |
finally: |
|
| 239 |
queue.release() |
|
| 263 | 240 |
logging.debug("Worker %s finished job %s, status = %s",
|
| 264 |
self.worker_id, job.id, job.GetStatus())
|
|
| 241 |
self.worker_id, job_id, status)
|
|
| 265 | 242 |
|
| 266 | 243 |
|
| 267 | 244 |
class _JobQueueWorkerPool(workerpool.WorkerPool): |
| ... | ... | |
| 271 | 248 |
self.context = context |
| 272 | 249 |
|
| 273 | 250 |
|
| 274 |
class JobStorageBase(object): |
|
| 275 |
def __init__(self, id_prefix): |
|
| 276 |
self.id_prefix = id_prefix |
|
| 277 |
|
|
| 278 |
if id_prefix: |
|
| 279 |
prefix_pattern = re.escape("%s-" % id_prefix)
|
|
| 280 |
else: |
|
| 281 |
prefix_pattern = "" |
|
| 282 |
|
|
| 283 |
# Apart from the prefix, all job IDs are numeric |
|
| 284 |
self._re_job_id = re.compile(r"^%s\d+$" % prefix_pattern) |
|
| 285 |
|
|
| 286 |
def OwnsJobId(self, job_id): |
|
| 287 |
return self._re_job_id.match(job_id) |
|
| 288 |
|
|
| 289 |
def FormatJobID(self, job_id): |
|
| 290 |
if not isinstance(job_id, (int, long)): |
|
| 291 |
raise errors.ProgrammerError("Job ID '%s' not numeric" % job_id)
|
|
| 292 |
if job_id < 0: |
|
| 293 |
raise errors.ProgrammerError("Job ID %s is negative" % job_id)
|
|
| 294 |
|
|
| 295 |
if self.id_prefix: |
|
| 296 |
prefix = "%s-" % self.id_prefix |
|
| 297 |
else: |
|
| 298 |
prefix = "" |
|
| 299 |
|
|
| 300 |
return "%s%010d" % (prefix, job_id) |
|
| 301 |
|
|
| 302 |
def _ShouldJobBeArchivedUnlocked(self, job): |
|
| 303 |
if job.GetStatus() not in (constants.JOB_STATUS_CANCELED, |
|
| 304 |
constants.JOB_STATUS_SUCCESS, |
|
| 305 |
constants.JOB_STATUS_ERROR): |
|
| 306 |
logging.debug("Job %s is not yet done", job.id)
|
|
| 307 |
return False |
|
| 308 |
return True |
|
| 309 |
|
|
| 310 |
|
|
| 311 |
class DiskJobStorage(JobStorageBase): |
|
| 251 |
class JobQueue(object): |
|
| 312 | 252 |
_RE_JOB_FILE = re.compile(r"^job-(%s)$" % constants.JOB_ID_TEMPLATE) |
| 313 | 253 |
|
| 314 |
def __init__(self, id_prefix): |
|
| 315 |
JobStorageBase.__init__(self, id_prefix) |
|
| 316 |
|
|
| 317 |
self._lock = threading.Lock() |
|
| 254 |
def __init__(self, context): |
|
| 318 | 255 |
self._memcache = {}
|
| 319 | 256 |
self._my_hostname = utils.HostInfo().name |
| 320 | 257 |
|
| 258 |
# Locking |
|
| 259 |
self._lock = threading.Lock() |
|
| 260 |
self.acquire = self._lock.acquire |
|
| 261 |
self.release = self._lock.release |
|
| 262 |
|
|
| 321 | 263 |
# Make sure our directories exists |
| 322 | 264 |
for path in (constants.QUEUE_DIR, constants.JOB_QUEUE_ARCHIVE_DIR): |
| 323 | 265 |
try: |
| ... | ... | |
| 363 | 305 |
raise errors.ConfigurationError("Can't read/parse the job queue serial"
|
| 364 | 306 |
" file") |
| 365 | 307 |
|
| 308 |
# Setup worker pool |
|
| 309 |
self._wpool = _JobQueueWorkerPool(context) |
|
| 310 |
|
|
| 311 |
# We need to lock here because WorkerPool.AddTask() may start a job while |
|
| 312 |
# we're still doing our work. |
|
| 313 |
self.acquire() |
|
| 314 |
try: |
|
| 315 |
for job in self._GetJobsUnlocked(None): |
|
| 316 |
status = job.CalcStatus() |
|
| 317 |
|
|
| 318 |
if status in (constants.JOB_STATUS_QUEUED, ): |
|
| 319 |
self._wpool.AddTask(job) |
|
| 320 |
|
|
| 321 |
elif status in (constants.JOB_STATUS_RUNNING, ): |
|
| 322 |
logging.warning("Unfinished job %s found: %s", job.id, job)
|
|
| 323 |
try: |
|
| 324 |
for op in job.ops: |
|
| 325 |
op.status = constants.OP_STATUS_ERROR |
|
| 326 |
op.result = "Unclean master daemon shutdown" |
|
| 327 |
finally: |
|
| 328 |
self.UpdateJobUnlocked(job) |
|
| 329 |
finally: |
|
| 330 |
self.release() |
|
| 331 |
|
|
| 366 | 332 |
@staticmethod |
| 367 | 333 |
def _ReadSerial(): |
| 368 | 334 |
"""Try to read the job serial file. |
| ... | ... | |
| 384 | 350 |
|
| 385 | 351 |
return serial |
| 386 | 352 |
|
| 387 |
def Close(self): |
|
| 388 |
assert self.lock_fd, "Queue should be open" |
|
| 389 |
|
|
| 390 |
self.lock_fd.close() |
|
| 391 |
self.lock_fd = None |
|
| 392 |
|
|
| 393 | 353 |
def _InitQueueUnlocked(self): |
| 394 | 354 |
assert self.lock_fd, "Queue should be open" |
| 395 | 355 |
|
| ... | ... | |
| 399 | 359 |
utils.WriteFile(constants.JOB_QUEUE_SERIAL_FILE, |
| 400 | 360 |
data="%s\n" % 0) |
| 401 | 361 |
|
| 362 |
def _FormatJobID(self, job_id): |
|
| 363 |
if not isinstance(job_id, (int, long)): |
|
| 364 |
raise errors.ProgrammerError("Job ID '%s' not numeric" % job_id)
|
|
| 365 |
if job_id < 0: |
|
| 366 |
raise errors.ProgrammerError("Job ID %s is negative" % job_id)
|
|
| 367 |
|
|
| 368 |
return str(job_id) |
|
| 369 |
|
|
| 402 | 370 |
def _NewSerialUnlocked(self, nodes): |
| 403 | 371 |
"""Generates a new job identifier. |
| 404 | 372 |
|
| ... | ... | |
| 430 | 398 |
if not result[node]: |
| 431 | 399 |
logging.error("copy of job queue file to node %s failed", node)
|
| 432 | 400 |
|
| 433 |
return self.FormatJobID(serial) |
|
| 401 |
return self._FormatJobID(serial)
|
|
| 434 | 402 |
|
| 435 |
def _GetJobPath(self, job_id): |
|
| 403 |
@staticmethod |
|
| 404 |
def _GetJobPath(job_id): |
|
| 436 | 405 |
return os.path.join(constants.QUEUE_DIR, "job-%s" % job_id) |
| 437 | 406 |
|
| 438 |
def _GetArchivedJobPath(self, job_id): |
|
| 407 |
@staticmethod |
|
| 408 |
def _GetArchivedJobPath(job_id): |
|
| 439 | 409 |
return os.path.join(constants.JOB_QUEUE_ARCHIVE_DIR, "job-%s" % job_id) |
| 440 | 410 |
|
| 441 |
def _ExtractJobID(self, name): |
|
| 442 |
m = self._RE_JOB_FILE.match(name) |
|
| 411 |
@classmethod |
|
| 412 |
def _ExtractJobID(cls, name): |
|
| 413 |
m = cls._RE_JOB_FILE.match(name) |
|
| 443 | 414 |
if m: |
| 444 | 415 |
return m.group(1) |
| 445 | 416 |
else: |
| ... | ... | |
| 498 | 469 |
return [self._LoadJobUnlocked(job_id) for job_id in job_ids] |
| 499 | 470 |
|
| 500 | 471 |
@utils.LockedMethod |
| 501 |
def GetJobs(self, job_ids):
|
|
| 502 |
return self._GetJobsUnlocked(job_ids)
|
|
| 472 |
def SubmitJob(self, ops, nodes):
|
|
| 473 |
"""Create and store a new job.
|
|
| 503 | 474 |
|
| 504 |
@utils.LockedMethod |
|
| 505 |
def AddJob(self, ops, nodes): |
|
| 506 |
"""Create and store on disk a new job. |
|
| 475 |
This enters the job into our job queue and also puts it on the new |
|
| 476 |
queue, in order for it to be picked up by the queue processors. |
|
| 507 | 477 |
|
| 508 | 478 |
@type ops: list |
| 509 | 479 |
@param ops: The list of OpCodes that will become the new job. |
| ... | ... | |
| 519 | 489 |
job = _QueuedJob(self, job_id, ops) |
| 520 | 490 |
|
| 521 | 491 |
# Write to disk |
| 522 |
self._UpdateJobUnlocked(job)
|
|
| 492 |
self.UpdateJobUnlocked(job) |
|
| 523 | 493 |
|
| 524 | 494 |
logging.debug("Added new job %s to the cache", job_id)
|
| 525 | 495 |
self._memcache[job_id] = job |
| 526 | 496 |
|
| 527 |
return job |
|
| 497 |
# Add to worker pool |
|
| 498 |
self._wpool.AddTask(job) |
|
| 499 |
|
|
| 500 |
return job.id |
|
| 528 | 501 |
|
| 529 |
def _UpdateJobUnlocked(self, job):
|
|
| 502 |
def UpdateJobUnlocked(self, job): |
|
| 530 | 503 |
assert self.lock_fd, "Queue should be open" |
| 531 | 504 |
|
| 532 | 505 |
filename = self._GetJobPath(job.id) |
| ... | ... | |
| 543 | 516 |
|
| 544 | 517 |
""" |
| 545 | 518 |
assert isinstance(exclude, list) |
| 519 |
|
|
| 546 | 520 |
for job in self._memcache.values(): |
| 547 | 521 |
if job.id in exclude: |
| 548 | 522 |
continue |
| 549 |
if job.GetStatus() not in (constants.JOB_STATUS_QUEUED,
|
|
| 550 |
constants.JOB_STATUS_RUNNING): |
|
| 523 |
if job.CalcStatus() not in (constants.JOB_STATUS_QUEUED,
|
|
| 524 |
constants.JOB_STATUS_RUNNING):
|
|
| 551 | 525 |
logging.debug("Cleaning job %s from the cache", job.id)
|
| 552 | 526 |
try: |
| 553 | 527 |
del self._memcache[job.id] |
| ... | ... | |
| 555 | 529 |
pass |
| 556 | 530 |
|
| 557 | 531 |
@utils.LockedMethod |
| 558 |
def UpdateJob(self, job): |
|
| 559 |
return self._UpdateJobUnlocked(job) |
|
| 560 |
|
|
| 561 |
# TODO: Figure out locking |
|
| 562 |
#@utils.LockedMethod |
|
| 563 | 532 |
def CancelJob(self, job_id): |
| 564 | 533 |
"""Cancels a job. |
| 565 | 534 |
|
| ... | ... | |
| 569 | 538 |
""" |
| 570 | 539 |
logging.debug("Cancelling job %s", job_id)
|
| 571 | 540 |
|
| 572 |
self._lock.acquire() |
|
| 573 |
try: |
|
| 574 |
job = self._LoadJobUnlocked(job_id) |
|
| 575 |
finally: |
|
| 576 |
self._lock.release() |
|
| 541 |
job = self._LoadJobUnlocked(job_id) |
|
| 577 | 542 |
if not job: |
| 578 | 543 |
logging.debug("Job %s not found", job_id)
|
| 579 | 544 |
return |
| 580 | 545 |
|
| 581 |
if job.GetStatus() not in (constants.JOB_STATUS_QUEUED,):
|
|
| 546 |
if job.CalcStatus() not in (constants.JOB_STATUS_QUEUED,):
|
|
| 582 | 547 |
logging.debug("Job %s is no longer in the queue", job.id)
|
| 583 | 548 |
return |
| 584 | 549 |
|
| 585 |
job.SetCanceled("Job cancelled by request")
|
|
| 550 |
try: |
|
| 551 |
for op in job.ops: |
|
| 552 |
op.status = constants.OP_STATUS_ERROR |
|
| 553 |
op.result = "Job cancelled by request" |
|
| 554 |
finally: |
|
| 555 |
self.UpdateJobUnlocked(job) |
|
| 586 | 556 |
|
| 587 | 557 |
@utils.LockedMethod |
| 588 | 558 |
def ArchiveJob(self, job_id): |
| ... | ... | |
| 599 | 569 |
logging.debug("Job %s not found", job_id)
|
| 600 | 570 |
return |
| 601 | 571 |
|
| 602 |
if not self._ShouldJobBeArchivedUnlocked(job): |
|
| 572 |
if job.CalcStatus() not in (constants.JOB_STATUS_CANCELED, |
|
| 573 |
constants.JOB_STATUS_SUCCESS, |
|
| 574 |
constants.JOB_STATUS_ERROR): |
|
| 575 |
logging.debug("Job %s is not yet done", job.id)
|
|
| 603 | 576 |
return |
| 604 | 577 |
|
| 605 | 578 |
try: |
| ... | ... | |
| 614 | 587 |
# and to be on the safe side. |
| 615 | 588 |
self._CleanCacheUnlocked([]) |
| 616 | 589 |
|
| 617 |
|
|
| 618 |
class JobQueue: |
|
| 619 |
"""The job queue. |
|
| 620 |
|
|
| 621 |
""" |
|
| 622 |
def __init__(self, context): |
|
| 623 |
self._lock = threading.Lock() |
|
| 624 |
self._jobs = DiskJobStorage("")
|
|
| 625 |
self._wpool = _JobQueueWorkerPool(context) |
|
| 626 |
|
|
| 627 |
for job in self._jobs.GetJobs(None): |
|
| 628 |
status = job.GetStatus() |
|
| 629 |
if status in (constants.JOB_STATUS_QUEUED, ): |
|
| 630 |
self._wpool.AddTask(job) |
|
| 631 |
|
|
| 632 |
elif status in (constants.JOB_STATUS_RUNNING, ): |
|
| 633 |
logging.warning("Unfinished job %s found: %s", job.id, job)
|
|
| 634 |
job.SetUnclean("Unclean master daemon shutdown")
|
|
| 635 |
|
|
| 636 |
@utils.LockedMethod |
|
| 637 |
def SubmitJob(self, ops, nodes): |
|
| 638 |
"""Add a new job to the queue. |
|
| 639 |
|
|
| 640 |
This enters the job into our job queue and also puts it on the new |
|
| 641 |
queue, in order for it to be picked up by the queue processors. |
|
| 642 |
|
|
| 643 |
@type ops: list |
|
| 644 |
@param ops: the sequence of opcodes that will become the new job |
|
| 645 |
@type nodes: list |
|
| 646 |
@param nodes: the list of nodes to which the queue should be |
|
| 647 |
distributed |
|
| 648 |
|
|
| 649 |
""" |
|
| 650 |
job = self._jobs.AddJob(ops, nodes) |
|
| 651 |
|
|
| 652 |
# Add to worker pool |
|
| 653 |
self._wpool.AddTask(job) |
|
| 654 |
|
|
| 655 |
return job.id |
|
| 656 |
|
|
| 657 |
def ArchiveJob(self, job_id): |
|
| 658 |
self._jobs.ArchiveJob(job_id) |
|
| 659 |
|
|
| 660 |
@utils.LockedMethod |
|
| 661 |
def CancelJob(self, job_id): |
|
| 662 |
self._jobs.CancelJob(job_id) |
|
| 663 |
|
|
| 664 |
def _GetJobInfo(self, job, fields): |
|
| 590 |
def _GetJobInfoUnlocked(self, job, fields): |
|
| 665 | 591 |
row = [] |
| 666 | 592 |
for fname in fields: |
| 667 | 593 |
if fname == "id": |
| 668 | 594 |
row.append(job.id) |
| 669 | 595 |
elif fname == "status": |
| 670 |
row.append(job.GetStatus())
|
|
| 596 |
row.append(job.CalcStatus())
|
|
| 671 | 597 |
elif fname == "ops": |
| 672 |
row.append([op.GetInput().__getstate__() for op in job._ops])
|
|
| 598 |
row.append([op.input.__getstate__() for op in job.ops])
|
|
| 673 | 599 |
elif fname == "opresult": |
| 674 |
row.append([op.GetResult() for op in job._ops])
|
|
| 600 |
row.append([op.result for op in job.ops])
|
|
| 675 | 601 |
elif fname == "opstatus": |
| 676 |
row.append([op.GetStatus() for op in job._ops])
|
|
| 602 |
row.append([op.status for op in job.ops])
|
|
| 677 | 603 |
elif fname == "ticker": |
| 678 |
ji = job.GetRunOpIndex()
|
|
| 604 |
ji = job.run_op_index
|
|
| 679 | 605 |
if ji < 0: |
| 680 | 606 |
lmsg = None |
| 681 | 607 |
else: |
| 682 |
lmsg = job._ops[ji].RetrieveLog(-1)
|
|
| 608 |
lmsg = job.ops[ji].RetrieveLog(-1) |
|
| 683 | 609 |
# message might be empty here |
| 684 | 610 |
if lmsg: |
| 685 | 611 |
lmsg = lmsg[0] |
| ... | ... | |
| 690 | 616 |
raise errors.OpExecError("Invalid job query field '%s'" % fname)
|
| 691 | 617 |
return row |
| 692 | 618 |
|
| 619 |
@utils.LockedMethod |
|
| 693 | 620 |
def QueryJobs(self, job_ids, fields): |
| 694 | 621 |
"""Returns a list of jobs in queue. |
| 695 | 622 |
|
| ... | ... | |
| 698 | 625 |
- fields: Names of fields to return |
| 699 | 626 |
|
| 700 | 627 |
""" |
| 701 |
self._lock.acquire() |
|
| 702 |
try: |
|
| 703 |
jobs = [] |
|
| 628 |
jobs = [] |
|
| 704 | 629 |
|
| 705 |
for job in self._jobs.GetJobs(job_ids):
|
|
| 706 |
if job is None:
|
|
| 707 |
jobs.append(None)
|
|
| 708 |
else:
|
|
| 709 |
jobs.append(self._GetJobInfo(job, fields))
|
|
| 630 |
for job in self._GetJobsUnlocked(job_ids):
|
|
| 631 |
if job is None: |
|
| 632 |
jobs.append(None) |
|
| 633 |
else: |
|
| 634 |
jobs.append(self._GetJobInfoUnlocked(job, fields))
|
|
| 710 | 635 |
|
| 711 |
return jobs |
|
| 712 |
finally: |
|
| 713 |
self._lock.release() |
|
| 636 |
return jobs |
|
| 714 | 637 |
|
| 715 | 638 |
@utils.LockedMethod |
| 716 | 639 |
def Shutdown(self): |
| 717 | 640 |
"""Stops the job queue. |
| 718 | 641 |
|
| 719 | 642 |
""" |
| 643 |
assert self.lock_fd, "Queue should be open" |
|
| 644 |
|
|
| 720 | 645 |
self._wpool.TerminateWorkers() |
| 721 |
self._jobs.Close() |
|
| 646 |
|
|
| 647 |
self.lock_fd.close() |
|
| 648 |
self.lock_fd = None |
|
Also available in: Unified diff