错误: 503 DNS解析在Google转换API中失败，但仅在通过终端执行Python文件时才失败。
错误: 503 DNS解析在Google转换API中失败，但仅在通过终端执行Python文件时才失败。
提问于 2020-03-23 10:18:02
当使用带有JSON授权密钥的Google时，我遇到了一个奇怪的问题。我可以直接在我选择的编辑器(VSCode)中运行该文件，而不会出现任何问题。没有错误。
但是，当我通过终端运行同一个文件时，该文件将一直执行到从磁盘加载Google转换凭据之后。然后调用在错误消息下面抛出。
因为只有在从终端运行文件时才会发生这种情况，所以我发现这个bug很难解决。
目标是让这个文件收集数据，并使用Google服务翻译一些字段，然后将数据存储在数据库中。
下面是错误消息：
Error: 503 DNS resolution failed
Traceback (most recent call last):
File "/home/MY-USER-NAME/anaconda3/lib/python3.6/site-packages/google/api_core/grpc_helpers.py", line 57, in error_remapped_callable
File "/home/MY-USER-NAME/anaconda3/lib/python3.6/site-packages/grpc/_channel.py", line 690, in __call__
File "/home/MY-USER-NAME/anaconda3/lib/python3.6/site-packages/grpc/_channel.py", line 592, in _end_unary_response_blocking
grpc._channel._Rendezvous: <_Rendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "DNS resolution failed"
debug_error_string = "{"created":"@1584629013.091398712","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":3934,"referenced_errors":[{"created":"@1584629013.091395769","description":"Resolver transient failure","file":"src/core/ext/filters/client_channel/resolving_lb_policy.cc","file_line":262,"referenced_errors":[{"created":"@1584629013.091394954","description":"DNS resolution failed","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc","file_line":370,"grpc_status":14,"referenced_errors":[{"created":"@1584629013.091389655","description":"C-ares status is not ARES_SUCCESS: Could not contact DNS servers","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc","file_line":244,"referenced_errors":[{"created":"@1584629013.091380513","description":"C-ares status is not ARES_SUCCESS: Could not contact DNS servers","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc","file_line":244}]}]}]}]}"
>这是我代码的相关部分：
- 专用CRON文件(我在许多其他项目中使用这个两步设置，没有任何问题)
#! anaconda3/bin/python
import os
os.chdir(r'/home/MY-USER-NAME/path-to-project')
import code-file- 代码文件(简单的.py脚本)
[...]
from google.oauth2 import service_account
from google.cloud import translate
key_path = 'path-to-file/credentials.json'
credentials = service_account.Credentials.from_service_account_file(
key_path, scopes=['https://www.googleapis.com/auth/cloud-platform'])
def translate_to_en(contents, credentials=None, verbose=False, use_pinyin=False):
[...]
client = translate.TranslationServiceClient(credentials=credentials)
parent = client.location_path(credentials.project_id, 'global')
[...]
response = client.translate_text(
parent=parent,
contents=[contents],
mime_type='text/plain', # mime types: text/plain, text/html
target_language_code='en-US')
[...]
[...]
for c in trans_cols:
df[f'{c}__trans'] = df[c].apply(lambda x: translate_to_en(contents=x, credentials=credentials, verbose=False))
[...]如果有人有一个好主意来解决这个问题，我们将非常感谢你的帮助。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/60811596
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