Supervisor/supervisor

I/O operation on closed file

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#984 opened on 2017年8月24日

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説明

Hello.

Using supervisor 3.3.3 on OS X, installed through brew.

The system seems to work 'ok'; but the error file is a torrent of errors such as these (below). Any hints appreciated.

2017-08-24 13:34:04,513 CRIT uncaptured python exception, closing channel <POutputDispatcher at 4318273408 for <Subprocess at 4316929848 with name central-worker-engine-2 in state RUNNING> (stdout)> (<type 'exceptions.ValueError'>:I/O operation on closed file [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/supervisord.py|runforever|227] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/dispatchers.py|handle_read_event|232] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/dispatchers.py|record_output|166] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/dispatchers.py|_log|142] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/loggers.py|info|275] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/loggers.py|log|293] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/loggers.py|emit|186] [/usr/local/Cellar/supervisor/3.3.3/libexec/lib/python2.7/site-packages/supervisor/loggers.py|doRollover|211])

コントリビューターガイド

技術スタック
python
領域
backend
Issue 種別
bug
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
3
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
half day
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
stale
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
clear
前提条件
Python basicsunderstanding of file I/O
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
50
調査方針
Investigate the traceback in the issue: supervisord.py line 227 calls runforever, dispatchers.py line 232 handle read event, line 166 record output, line 142 log, and loggers.py line 275 info, line 293 log, line 186 emit, line 211 doRollover. The error 'I/O operation on closed file' suggests a file handle is being used after close. Look at the log rotation logic (doRollover) and ensure it handles file closure correctly. Check if the issue is reproducible with current version. Review any linked issues or comments for context.