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175 | """ utilities for package version introspection """
from __future__ import print_function, division, absolute_import
import platform
import struct
import os
import sys
import importlib
required_packages = [
("dask", lambda p: p.__version__),
("distributed", lambda p: p.__version__),
("msgpack", lambda p: ".".join([str(v) for v in p.version])),
("cloudpickle", lambda p: p.__version__),
("tornado", lambda p: p.version),
("toolz", lambda p: p.__version__),
]
optional_packages = [
("numpy", lambda p: p.__version__),
("lz4", lambda p: p.__version__),
("blosc", lambda p: p.__version__),
]
# only these scheduler packages will be checked for version mismatch
scheduler_relevant_packages = set(pkg for pkg, _ in required_packages) | set(
["lz4", "blosc"]
)
# notes to be displayed for mismatch packages
notes_mismatch_package = {
"msgpack": "Variation is ok, as long as everything is above 0.6"
}
def get_versions(packages=None):
"""
Return basic information on our software installation, and our installed versions of packages.
"""
if packages is None:
packages = []
d = {
"host": get_system_info(),
"packages": get_package_info(
required_packages + optional_packages + list(packages)
),
}
return d
def get_system_info():
(sysname, nodename, release, version, machine, processor) = platform.uname()
host = {
"python": "%d.%d.%d.%s.%s" % sys.version_info[:],
"python-bits": struct.calcsize("P") * 8,
"OS": "%s" % sysname,
"OS-release": "%s" % release,
"machine": "%s" % machine,
"processor": "%s" % processor,
"byteorder": "%s" % sys.byteorder,
"LC_ALL": "%s" % os.environ.get("LC_ALL", "None"),
"LANG": "%s" % os.environ.get("LANG", "None"),
}
return host
def version_of_package(pkg):
""" Try a variety of common ways to get the version of a package """
from contextlib import suppress
with suppress(AttributeError):
return pkg.__version__
with suppress(AttributeError):
return str(pkg.version)
with suppress(AttributeError):
return ".".join(map(str, pkg.version_info))
return None
def get_package_info(pkgs):
""" get package versions for the passed required & optional packages """
pversions = [("python", ".".join(map(str, sys.version_info)))]
for pkg in pkgs:
if isinstance(pkg, (tuple, list)):
modname, ver_f = pkg
else:
modname = pkg
ver_f = version_of_package
if ver_f is None:
ver_f = version_of_package
try:
mod = importlib.import_module(modname)
ver = ver_f(mod)
pversions.append((modname, ver))
except Exception:
pversions.append((modname, None))
return dict(pversions)
def error_message(scheduler, workers, client, client_name="client"):
from .utils import asciitable
client = client.get("packages") if client else "UNKNOWN"
scheduler = scheduler.get("packages") if scheduler else "UNKNOWN"
workers = {k: v.get("packages") if v else "UNKNOWN" for k, v in workers.items()}
packages = set()
packages.update(client)
packages.update(scheduler)
for worker in workers:
packages.update(workers.get(worker))
errs = []
notes = []
for pkg in sorted(packages):
versions = set()
scheduler_version = (
scheduler.get(pkg, "MISSING") if isinstance(scheduler, dict) else scheduler
)
if pkg in scheduler_relevant_packages:
versions.add(scheduler_version)
client_version = (
client.get(pkg, "MISSING") if isinstance(client, dict) else client
)
versions.add(client_version)
worker_versions = set(
workers[w].get(pkg, "MISSING")
if isinstance(workers[w], dict)
else workers[w]
for w in workers
)
versions |= worker_versions
if len(versions) <= 1:
continue
if len(worker_versions) == 1:
worker_versions = list(worker_versions)[0]
elif len(worker_versions) == 0:
worker_versions = None
errs.append((pkg, client_version, scheduler_version, worker_versions))
if pkg in notes_mismatch_package.keys():
notes.append(f"- {pkg}: {notes_mismatch_package[pkg]}")
out = {"warning": "", "error": ""}
if errs:
err_table = asciitable(["Package", client_name, "scheduler", "workers"], errs)
err_msg = f"Mismatched versions found\n\n{err_table}"
if notes:
err_msg += "\nNotes: \n{}".format("\n".join(notes))
out["warning"] += err_msg
for name, c, s, ws in errs:
if not isinstance(ws, set):
ws = {ws}
return out
class VersionMismatchWarning(Warning):
"""Indicates version mismatch between nodes"""
|