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マルチスレッド モジュールを含む django アプリを dotcloud にデプロイしました。このスレッドは、DB に遅いものを入れています (通常、約 3 ～ 5 秒かかります)。

仮想環境でテストすると、すべて正常に動作します。

ここに私の dotcloud.yml があります:

www:
  type: python
  config:
    python_version: v2.7
    uwsgi_enable_threads: true
db:
  type: postgresql
data:
  type: mongodb

ここに私のドットクラウドログがあります:

[www.0] Process Process-1:
[www.0] Traceback (most recent call last):
[www.0]   File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
[www.0]     self.run()
[www.0]   File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run
[www.0]     self._target(*self._args, **self._kwargs)
[www.0]   File "/home/dotcloud/current/usn/views.py", line 416, in sync_countdown
[www.0]     put_current_data_to_db(user_name)
[www.0]   File "/home/dotcloud/current/usn/views.py", line 429, in put_current_data_to_db
[www.0]     current_client = Client.objects.get(user_name=user_name)
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/manager.py", line 131, in get
[www.0]     return self.get_query_set().get(*args, **kwargs)
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/query.py", line 361, in get
[www.0]     num = len(clone)
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/query.py", line 85, in __len__
[www.0]     self._result_cache = list(self.iterator())
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/query.py", line 291, in iterator
[www.0]     for row in compiler.results_iter():
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 763, in results_iter
[www.0]     for rows in self.execute_sql(MULTI):
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 818, in execute_sql
[www.0]     cursor.execute(sql, params)
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/backends/util.py", line 40, in execute
[www.0]     return self.cursor.execute(sql, params)
[www.0]   File "/home/dotcloud/env/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 52, in execute
[www.0]     return self.cursor.execute(query, args)
[www.0] DatabaseError: server closed the connection unexpectedly
[www.0]     This probably means the server terminated abnormally
[www.0]     before or while processing the request.
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1 に答える 1

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djangoスレッドでデータベースの問題を解決する一般的な方法は私にとってはうまくいきました-私はちょうど追加しました:

django.db.connection.close()

私のスレッドを開始する前に

簡単な説明:

次に、django は新しいスレッドをフォークし、子はDB への同じ接続を親として使用します。

接続を閉じると、子が新しい接続を作成します。

于 2013-01-17T01:02:22.740 に答える