[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-07-22 Thread Antoine Pitrou 

Changes by Antoine Pitrou :


--
resolution:  -> rejected
stage:  -> resolved
status: pending -> closed

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-06-28 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

Roman, do you think my analysis above is wrong? Otherwise, I'm inclined to 
close the issue.

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status: open -> pending

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-06-13 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

As for Process, it doesn't have a close() method right now, so you should lose 
all references to a Process object once you are done with it.  When a Process 
is garbage-collected, its Popen object is garbage-collected too, and the Popen 
object's Finalizer then closes the sentinel fd.

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-06-13 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

As for Queue._writer, I don't think this is true.  When you call Queue.close(), 
it calls the _close() method, which sends a sentinel to the feeder thread (see 
_finalize_close), and the feeder thread then pops the sentinel, closes the 
writer and exits.

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-06-13 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

The Process issue will be fixed with Process.close() in issue30596.

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nosy: +pitrou

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-03-07 Thread Josh Rosenberg 

Changes by Josh Rosenberg :


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nosy: +josh.r

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-03-07 Thread Raymond Hettinger 

Changes by Raymond Hettinger :


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assignee:  -> davin

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2017-03-07 Thread Camilla Montonen 

Changes by Camilla Montonen :


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nosy: +Winterflower

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-07-06 Thread Roman Bolshakov 

Changes by Roman Bolshakov :


Removed file: http://bugs.python.org/file43046/leak.py

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-07-06 Thread Roman Bolshakov 

Roman Bolshakov added the comment:

multiprocessing.Queue._writer is affected by similar issue. _writer FD is left 
open after .close() is invoked on a Queue.

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Added file: http://bugs.python.org/file43642/leak.py

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-06-05 Thread Ned Deily 

Changes by Ned Deily :


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nosy: +davin

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-05-29 Thread Марк Коренберг 

Changes by Марк Коренберг :


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nosy: +mmarkk

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-05-29 Thread SilentGhost 

Changes by SilentGhost :


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nosy: +jnoller, sbt
versions: +Python 3.6 -Python 3.3, Python 3.4

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

2016-05-29 Thread Roman Bolshakov 

New submission from Roman Bolshakov:

There's no code that closes read pipe(Process.sentinel) when a Process is 
joined. That creates issues in long running programs as the pipe's file 
descriptors are effectively leaked.

--
components: Library (Lib)
files: leak.py
messages: 266598
nosy: Roman Bolshakov
priority: normal
severity: normal
status: open
title: multiprocessing.Process leaves read pipes open (Process.sentinel)
type: resource usage
versions: Python 3.3, Python 3.4, Python 3.5
Added file: http://bugs.python.org/file43046/leak.py

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