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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Memory leak in ThreadPoolExecutor + run_in_executor","articleBody":"BPO | [38430](https://bugs.python.org/issue38430)\n--- | :---\nNosy | @asvetlov, @1st1, @eamanu\nPRs | \u003cli\u003epython/cpython#17038\u003c/li\u003e\nFiles | \u003cli\u003e[python-leak.zip](https://bugs.python.org/file48654/python-leak.zip \"Uploaded as application/zip at 2019-10-10.09:41:34 by Evgeny Nizhibitsky\"): Minimal python script + dockerfile/makefile for reproducibility\u003c/li\u003e\n\n\u003csup\u003e*Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.*\u003c/sup\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShow more details\u003c/summary\u003e\u003cp\u003e\n\nGitHub fields:\n```python\nassignee = None\nclosed_at = None\ncreated_at = \u003cDate 2019-10-10.09:41:34.118\u003e\nlabels = ['expert-asyncio', '3.7', '3.9', 'performance']\ntitle = 'Memory leak in ThreadPoolExecutor + run_in_executor'\nupdated_at = \u003cDate 2019-11-05.01:20:32.415\u003e\nuser = 'https://bugs.python.org/EvgenyNizhibitsky'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2019-11-05.01:20:32.415\u003e\nactor = 'vstinner'\nassignee = 'none'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['asyncio']\ncreation = \u003cDate 2019-10-10.09:41:34.118\u003e\ncreator = 'Evgeny Nizhibitsky'\ndependencies = []\nfiles = ['48654']\nhgrepos = []\nissue_num = 38430\nkeywords = ['patch']\nmessage_count = 14.0\nmessages = ['354351', '354352', '354353', '354354', '354355', '354356', '354357', '354358', '354360', '355835', '355836', '355843', '355864', '355882']\nnosy_count = 4.0\nnosy_names = ['asvetlov', 'yselivanov', 'eamanu', 'Evgeny Nizhibitsky']\npr_nums = ['17038']\npriority = 'normal'\nresolution = None\nstage = 'patch review'\nstatus = 'open'\nsuperseder = None\ntype = 'resource usage'\nurl = 'https://bugs.python.org/issue38430'\nversions = ['Python 3.6', 'Python 3.7', 'Python 3.9']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/EvgenyNizhibitsky","@type":"Person","name":"EvgenyNizhibitsky"},"datePublished":"2019-10-10T09:41:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":17},"url":"https://github.com/82611/cpython/issues/82611"}