【发布时间】:2013-03-05 10:47:22
【问题描述】:
我正在运行一个映射大约 10 万条记录的 map reduce 作业。
映射步骤在数千条记录后失败(每次不同的地方),应用引擎日志中出现以下错误BadValueError: name must be under 500
管道作业 ID:baada59c857d11e28527e1efd5a519d7
输出 Blob 文件名:content_contributors_report_1362478582.csv
日志转储
Final result for job '1581739058957C0CA88F5' is 'success' E2013-03-05
12:25:21.637 name must be under 500 bytes. Traceback (most recent call
last): File
"/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 1535, in __call__
rv = self.handle_exception(request, response, e) File "/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 1529, in __call__
rv = self.router.dispatch(request, response) File "/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 1278, in default_dispatcher
return route.handler_adapter(request, response) File "/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 1102, in __call__
return handler.dispatch() File "/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 572, in dispatch
return self.handle_exception(e, self.app.debug) File "/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
line 570, in dispatch
return method(*args, **kwargs) File "/base/data/home/apps/s~myap/a-276.365486148015822746/mapreduce/base_handler.py",
line 68, in post
self.handle() File "/base/data/home/apps/s~myapp/a-276.365486148015822746/mapreduce/handlers.py",
line 437, in handle
spec, state, self.base_path()) File "/base/data/home/apps/s~myapp/a-276.365486148015822746/mapreduce/handlers.py",
line 517, in _finalize_job
mapreduce_spec.mapper.output_writer_class().finalize_job(mapreduce_state)
File
"/base/data/home/apps/s~myapp/a-276.365486148015822746/mapreduce/output_writers.py",
line 454, in finalize_job
files.blobstore.get_blob_key(filename))) File "/base/data/home/apps/s~myapp/a-276.365486148015822746/mapreduce/lib/files/blobstore.py",
line 112, in get_blob_key
_BLOB_FILE_INDEX_KIND, ticket, namespace='')])[0] File "/python27_runtime/python27_lib/versions/1/google/appengine/api/datastore_types.py",
line 504, in from_path
ValidateString(id_or_name, 'name') File "/python27_runtime/python27_lib/versions/1/google/appengine/api/datastore_types.py",
line 176, in ValidateString
raise exception('%s must be under %d bytes.' % (name, max_len)) BadValueError: name must be under 500 bytes.
【问题讨论】:
-
您使用的是哪个版本的 mapreduce?
-
感谢@lucemia,原来我使用了错误的版本,不久前我不得不下载一个单独的 mapreduce 库并将其添加到我的项目代码库中,我现在恢复到与 SDK 捆绑的这似乎已经解决了问题。
标签: google-app-engine python-2.7 mapreduce