M-Labs
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artiq
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refactor logging and implement in worker

This commit is contained in:
Sebastien Bourdeauducq 2016-01-26 20:31:42 +01:00
parent a583a923d8
commit 5aa4de8e89
7 changed files with 64 additions and 61 deletions
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31
artiq/frontend/artiq_ctlmgr.py
View File

@ -12,8 +12,7 @@ import platform
from artiq.protocols.sync_struct import Subscriber
from artiq.protocols.pc_rpc import AsyncioClient, Server
from artiq.protocols.logging import (LogForwarder,
parse_log_message, log_with_name,
from artiq.protocols.logging import (LogForwarder, LogParser,
SourceFilter)
from artiq.tools import *
@ -79,22 +78,8 @@ class Controller:
else:
break
async def forward_logs(self, stream):
source = "controller({})".format(self.name)
while True:
try:
entry = (await stream.readline())
if not entry:
break
entry = entry[:-1]
level, name, message = parse_log_message(entry.decode())
log_with_name(name, level, message, extra={"source": source})
except:
logger.debug("exception in log forwarding", exc_info=True)
break
logger.debug("stopped log forwarding of stream %s of %s",
stream, self.name)
def _get_log_source(self):
return "controller({})".format(self.name)
async def launcher(self):
try:
@ -105,10 +90,12 @@ class Controller:
self.process = await asyncio.create_subprocess_exec(
*shlex.split(self.command),
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
asyncio.ensure_future(self.forward_logs(
self.process.stdout))
asyncio.ensure_future(self.forward_logs(
self.process.stderr))
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.process.stdout))
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.process.stderr))
await self._wait_and_ping()
except FileNotFoundError:
logger.warning("Controller %s failed to start", self.name)

8
artiq/frontend/artiq_master.py
View File

@ -9,7 +9,7 @@ from artiq.tools import *
from artiq.protocols.pc_rpc import Server as RPCServer
from artiq.protocols.sync_struct import Publisher
from artiq.protocols.logging import Server as LoggingServer
from artiq.master.log import log_args, init_log, log_worker
from artiq.master.log import log_args, init_log
from artiq.master.databases import DeviceDB, DatasetDB
from artiq.master.scheduler import Scheduler
from artiq.master.worker_db import get_last_rid
@ -63,8 +63,7 @@ def main():
repo_backend = GitBackend(args.repository)
else:
repo_backend = FilesystemBackend(args.repository)
experiment_db = ExperimentDB(repo_backend, device_db.get_device_db,
log_worker)
experiment_db = ExperimentDB(repo_backend, device_db.get_device_db)
atexit.register(experiment_db.close)
experiment_db.scan_repository_async()
@ -72,8 +71,7 @@ def main():
"get_device_db": device_db.get_device_db,
"get_device": device_db.get,
"get_dataset": dataset_db.get,
"update_dataset": dataset_db.update,
"log": log_worker
"update_dataset": dataset_db.update
}
scheduler = Scheduler(get_last_rid() + 1, worker_handlers, experiment_db)
worker_handlers.update({

29
artiq/master/experiments.py
View File

@ -3,7 +3,6 @@ import os
import tempfile
import shutil
import logging
from functools import partial
from artiq.protocols.sync_struct import Notifier
from artiq.master.worker import (Worker, WorkerInternalException,
@ -15,13 +14,10 @@ logger = logging.getLogger(__name__)
async def _get_repository_entries(entry_dict,
root, filename, get_device_db, log):
worker = Worker({
"get_device_db": get_device_db,
"log": partial(log, "scan", os.path.basename(filename))
})
root, filename, get_device_db):
worker = Worker({"get_device_db": get_device_db})
try:
description = await worker.examine(os.path.join(root, filename))
description = await worker.examine("scan", os.path.join(root, filename))
except:
log_worker_exception()
raise
@ -49,7 +45,7 @@ async def _get_repository_entries(entry_dict,
entry_dict[name] = entry
async def _scan_experiments(root, get_device_db, log, subdir=""):
async def _scan_experiments(root, get_device_db, subdir=""):
entry_dict = dict()
for de in os.scandir(os.path.join(root, subdir)):
if de.name.startswith("."):
@ -58,13 +54,13 @@ async def _scan_experiments(root, get_device_db, log, subdir=""):
filename = os.path.join(subdir, de.name)
try:
await _get_repository_entries(
entry_dict, root, filename, get_device_db, log)
entry_dict, root, filename, get_device_db)
except Exception as exc:
logger.warning("Skipping file '%s'", filename,
exc_info=not isinstance(exc, WorkerInternalException))
if de.is_dir():
subentries = await _scan_experiments(
root, get_device_db, log,
root, get_device_db,
os.path.join(subdir, de.name))
entries = {de.name + "/" + k: v for k, v in subentries.items()}
entry_dict.update(entries)
@ -81,10 +77,9 @@ def _sync_explist(target, source):
class ExperimentDB:
def __init__(self, repo_backend, get_device_db_fn, log_fn):
def __init__(self, repo_backend, get_device_db_fn):
self.repo_backend = repo_backend
self.get_device_db_fn = get_device_db_fn
self.log_fn = log_fn
self.cur_rev = self.repo_backend.get_head_rev()
self.repo_backend.request_rev(self.cur_rev)
@ -106,8 +101,7 @@ class ExperimentDB:
wd, _ = self.repo_backend.request_rev(new_cur_rev)
self.repo_backend.release_rev(self.cur_rev)
self.cur_rev = new_cur_rev
new_explist = await _scan_experiments(wd, self.get_device_db_fn,
self.log_fn)
new_explist = await _scan_experiments(wd, self.get_device_db_fn)
_sync_explist(self.explist, new_explist)
finally:
@ -122,12 +116,9 @@ class ExperimentDB:
revision = self.cur_rev
wd, _ = self.repo_backend.request_rev(revision)
filename = os.path.join(wd, filename)
worker = Worker({
"get_device_db": self.get_device_db_fn,
"log": partial(self.log_fn, "examine", os.path.basename(filename))
})
worker = Worker({"get_device_db": self.get_device_db_fn})
try:
description = await worker.examine(filename)
description = await worker.examine("examine", filename)
finally:
await worker.close()
if use_repository:

10
artiq/master/log.py
View File

@ -2,7 +2,7 @@ import logging
import logging.handlers
from artiq.protocols.sync_struct import Notifier
from artiq.protocols.logging import parse_log_message, log_with_name, SourceFilter
from artiq.protocols.logging import SourceFilter
class LogBuffer:
@ -28,14 +28,6 @@ class LogBufferHandler(logging.Handler):
self.log_buffer.log(record.levelno, record.source, record.created,
part)
def log_worker(rid, filename, message):
level, name, message = parse_log_message(message)
log_with_name(name, level, message,
extra={"source": "worker({},{})".format(rid, filename)})
log_worker.worker_pass_runinfo = True
def log_args(parser):
group = parser.add_argument_group("logging")
group.add_argument("-v", "--verbose", default=0, action="count",

22
artiq/master/worker.py
View File

@ -8,6 +8,7 @@ import time
from functools import partial
from artiq.protocols import pipe_ipc, pyon
from artiq.protocols.logging import LogParser
from artiq.tools import asyncio_wait_or_cancel
@ -72,6 +73,9 @@ class Worker:
else:
return None
def _get_log_source(self):
return "worker({},{})".format(self.rid, self.filename)
async def _create_process(self, log_level):
await self.io_lock.acquire()
try:
@ -80,7 +84,14 @@ class Worker:
self.ipc = pipe_ipc.AsyncioParentComm()
await self.ipc.create_subprocess(
sys.executable, "-m", "artiq.master.worker_impl",
self.ipc.get_address(), str(log_level))
self.ipc.get_address(), str(log_level),
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.ipc.process.stdout))
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.ipc.process.stderr))
finally:
self.io_lock.release()
@ -94,7 +105,7 @@ class Worker:
await self.io_lock.acquire()
try:
if self.ipc is None:
# Note the %s - self.rid can be None
# Note the %s - self.rid can be None or a user string
logger.debug("worker was not created (RID %s)", self.rid)
return
if self.ipc.process.returncode is not None:
@ -192,8 +203,6 @@ class Worker:
func = self.register_experiment
else:
func = self.handlers[action]
if getattr(func, "worker_pass_runinfo", False):
func = partial(func, self.rid, self.filename)
try:
data = func(*obj["args"], **obj["kwargs"])
reply = {"status": "ok", "data": data}
@ -265,7 +274,10 @@ class Worker:
await self._worker_action({"action": "write_results"},
timeout)
async def examine(self, file, timeout=20.0):
async def examine(self, rid, file, timeout=20.0):
self.rid = rid
self.filename = os.path.basename(file)
await self._create_process(logging.WARNING)
r = dict()
def register(class_name, name, arginfo):

23
artiq/protocols/logging.py
View File

@ -36,6 +36,29 @@ def parse_log_message(msg):
return logging.INFO, "print", msg
class LogParser:
def __init__(self, source_cb):
self.source_cb = source_cb
def line_input(self, msg):
level, name, message = parse_log_message(msg)
log_with_name(name, level, message,
extra={"source": self.source_cb()})
async def stream_task(self, stream):
while True:
try:
entry = (await stream.readline())
if not entry:
break
self.line_input(entry[:-1].decode())
except:
logger.debug("exception in log forwarding", exc_info=True)
break
logger.debug("stopped log forwarding of stream %s of %s",
stream, self.source_cb())
_init_string = b"ARTIQ logging\n"

2
artiq/test/worker.py
View File

@ -71,7 +71,7 @@ def _run_experiment(class_name):
"arguments": dict()
}
loop = asyncio.get_event_loop()
worker = Worker(handlers={"log": lambda message: None})
worker = Worker({})
loop.run_until_complete(_call_worker(worker, expid))