从这里复制:https://github.com/kubeflow/pipelines/issues/7608
我有一个针对Kubeflow运行的生成代码文件。它在Kubeflow v1上运行良好,现在我将其移动到Kubeflow v2。当我这样做时,我收到以下错误:json. decder.JSONDecodeError:期望用双引号括起来的属性名称:第1行第2列(char 1)
老实说,我甚至不知道下一步该去哪里。感觉有些东西在第一个字符中失败了,但我看不到它(它在kubeflow执行中)。
谢谢!
>
您是如何部署Kubeflow管道(KFP)的?标准部署到AWS
KFP版本:1.8.1
KFPSDK版本:1.8.12
这是日志:
time="2022-04-26T17:38:09.547Z" level=info msg="capturing logs" argo=true
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead:
https://pip.pypa.io/warnings/venv
[KFP Executor 2022-04-26 17:38:24,691 INFO]: Looking for component `run_info_fn` in --component_module_path `/tmp/tmp.NJW6PWXpIt/ephemeral_component.py`
[KFP Executor 2022-04-26 17:38:24,691 INFO]: Loading KFP component "run_info_fn" from /tmp/tmp.NJW6PWXpIt/ephemeral_component.py (directory "/tmp/tmp.NJW6PWXpIt" and module name "ephemeral_component")
Traceback (most recent call last):
File "/usr/local/lib/python3.7/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/usr/local/lib/python3.7/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.7/site-packages/kfp/v2/components/executor_main.py", line 104, in <module>
executor_main()
File "/usr/local/lib/python3.7/site-packages/kfp/v2/components/executor_main.py", line 94, in executor_main
executor_input = json.loads(args.executor_input)
File "/usr/local/lib/python3.7/json/__init__.py", line 348, in loads
return _default_decoder.decode(s)
File "/usr/local/lib/python3.7/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/local/lib/python3.7/json/decoder.py", line 353, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)
time="2022-04-26T17:38:24.803Z" level=error msg="cannot save artifact /tmp/outputs/run_info/data" argo=true error="stat /tmp/outputs/run_info/data: no such file or directory"
Error: exit status 1
这是要重现的文件:root_pipeline_04d99580c84b47c28405a2c8bcae8703.py
import kfp.v2.components
from kfp.v2.dsl import InputPath
from kubernetes.client.models import V1EnvVar
from kubernetes import client, config
from typing import NamedTuple
from base64 import b64encode
import kfp.v2.dsl as dsl
import kubernetes
import json
import kfp
from run_info import run_info_fn
from same_step_000_ce6494722c474dd3b8bef482bb976557 import same_step_000_ce6494722c474dd3b8bef482bb976557_fn
run_info_comp = kfp.v2.dsl.component(
func=run_info_fn,
packages_to_install=[
"kfp",
"dill",
],
)
same_step_000_ce6494722c474dd3b8bef482bb976557_comp = kfp.v2.dsl.component(
func=same_step_000_ce6494722c474dd3b8bef482bb976557_fn,
base_image="public.ecr.aws/j1r0q0g6/notebooks/notebook-servers/codeserver-python:v1.5.0",
packages_to_install=[
"dill",
"requests",
# TODO: make this a loop
],
)
@kfp.dsl.pipeline(name="root_pipeline_compilation",)
def root(
context: str='', metadata_url: str='',
):
# Generate secrets (if not already created)
secrets_by_env = {}
env_vars = {
}
run_info = run_info_comp(run_id=kfp.dsl.RUN_ID_PLACEHOLDER)
same_step_000_ce6494722c474dd3b8bef482bb976557 = same_step_000_ce6494722c474dd3b8bef482bb976557_comp(
input_context_path="",
run_info=run_info.outputs["run_info"],
metadata_url=metadata_url
)
same_step_000_ce6494722c474dd3b8bef482bb976557.execution_options.caching_strategy.max_cache_staleness = "P0D"
for k in env_vars:
same_step_000_ce6494722c474dd3b8bef482bb976557.add_env_variable(V1EnvVar(name=k, value=env_vars[k]))
run_info.py
"""
The run_info component fetches metadata about the current pipeline execution
from kubeflow and passes it on to the user code step components.
"""
from typing import NamedTuple
def run_info_fn(
run_id: str,
) -> NamedTuple("RunInfoOutput", [("run_info", str),]):
from base64 import urlsafe_b64encode
from collections import namedtuple
import datetime
import base64
import dill
import kfp
client = kfp.Client(host="http://ml-pipeline:8888")
run_info = client.get_run(run_id=run_id)
run_info_dict = {
"run_id": run_info.run.id,
"name": run_info.run.name,
"created_at": run_info.run.created_at.isoformat(),
"pipeline_id": run_info.run.pipeline_spec.pipeline_id,
}
# Track kubernetes resources associated wth the run.
for r in run_info.run.resource_references:
run_info_dict[f"{r.key.type.lower()}_id"] = r.key.id
# Base64-encoded as value is visible in kubeflow ui.
output = urlsafe_b64encode(dill.dumps(run_info_dict))
return namedtuple("RunInfoOutput", ["run_info"])(
str(output, encoding="ascii")
)
same_step_000_ce6494722c474dd3b8bef482bb976557.py
import kfp
from kfp.v2.dsl import component, Artifact, Input, InputPath, Output, OutputPath, Dataset, Model
from typing import NamedTuple
def same_step_000_ce6494722c474dd3b8bef482bb976557_fn(
input_context_path: InputPath(str),
output_context_path: OutputPath(str),
run_info: str = "gAR9lC4=",
metadata_url: str = "",
):
from base64 import urlsafe_b64encode, urlsafe_b64decode
from pathlib import Path
import datetime
import requests
import tempfile
import dill
import os
input_context = None
with Path(input_context_path).open("rb") as reader:
input_context = reader.read()
# Helper function for posting metadata to mlflow.
def post_metadata(json):
if metadata_url == "":
return
try:
req = requests.post(metadata_url, json=json)
req.raise_for_status()
except requests.exceptions.HTTPError as err:
print(f"Error posting metadata: {err}")
# Move to writable directory as user might want to do file IO.
# TODO: won't persist across steps, might need support in SDK?
os.chdir(tempfile.mkdtemp())
# Load information about the current experiment run:
run_info = dill.loads(urlsafe_b64decode(run_info))
# Post session context to mlflow.
if len(input_context) > 0:
input_context_str = urlsafe_b64encode(input_context)
post_metadata(
{
"experiment_id": run_info["experiment_id"],
"run_id": run_info["run_id"],
"step_id": "same_step_000",
"metadata_type": "input",
"metadata_value": input_context_str,
"metadata_time": datetime.datetime.now().isoformat(),
}
)
# User code for step, which we run in its own execution frame.
user_code = f"""
import dill
# Load session context into global namespace:
if { len(input_context) } > 0:
dill.load_session("{ input_context_path }")
{dill.loads(urlsafe_b64decode("gASVGAAAAAAAAACMFHByaW50KCJIZWxsbyB3b3JsZCIplC4="))}
# Remove anything from the global namespace that cannot be serialised.
# TODO: this will include things like pandas dataframes, needs sdk support?
_bad_keys = []
_all_keys = list(globals().keys())
for k in _all_keys:
try:
dill.dumps(globals()[k])
except TypeError:
_bad_keys.append(k)
for k in _bad_keys:
del globals()[k]
# Save new session context to disk for the next component:
dill.dump_session("{output_context_path}")
"""
# Runs the user code in a new execution frame. Context from the previous
# component in the run is loaded into the session dynamically, and we run
# with a single globals() namespace to simulate top-level execution.
exec(user_code, globals(), globals())
# Post new session context to mlflow:
with Path(output_context_path).open("rb") as reader:
context = urlsafe_b64encode(reader.read())
post_metadata(
{
"experiment_id": run_info["experiment_id"],
"run_id": run_info["run_id"],
"step_id": "same_step_000",
"metadata_type": "output",
"metadata_value": context,
"metadata_time": datetime.datetime.now().isoformat(),
}
)
要执行以运行的Python文件:
from sameproject.ops import helpers
from pathlib import Path
import importlib
import kfp
def deploy(compiled_path: Path, root_module_name: str):
with helpers.add_path(str(compiled_path)):
kfp_client = kfp.Client() # only supporting 'kubeflow' namespace
root_module = importlib.import_module(root_module_name)
return kfp_client.create_run_from_pipeline_func(
root_module.root,
arguments={},
)
事实证明,这与没有打开正确的执行模式进行编译有关。
如果您得到这个,您的代码应该如下所示。
Compiler(mode=kfp.dsl.PipelineExecutionMode.V2_COMPATIBLE).compile(pipeline_func=root_module.root, package_path=str(package_yaml_path))