{"action":"created","issue":{"url":"https://api.github.com/repos/celery/celery/issues/2431","labels_url":"https://api.github.com/repos/celery/celery/issues/2431/labels{/name}","comments_url":"https://api.github.com/repos/celery/celery/issues/2431/comments","events_url":"https://api.github.com/repos/celery/celery/issues/2431/events","html_url":"https://github.com/celery/celery/issues/2431","id":52806617,"number":2431,"title":"Workers stop consuming tasks","user":{"login":"ffaraone","id":1480134,"avatar_url":"https://avatars.githubusercontent.com/u/1480134?v=3","gravatar_id":"","url":"https://api.github.com/users/ffaraone","html_url":"https://github.com/ffaraone","followers_url":"https://api.github.com/users/ffaraone/followers","following_url":"https://api.github.com/users/ffaraone/following{/other_user}","gists_url":"https://api.github.com/users/ffaraone/gists{/gist_id}","starred_url":"https://api.github.com/users/ffaraone/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ffaraone/subscriptions","organizations_url":"https://api.github.com/users/ffaraone/orgs","repos_url":"https://api.github.com/users/ffaraone/repos","events_url":"https://api.github.com/users/ffaraone/events{/privacy}","received_events_url":"https://api.github.com/users/ffaraone/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/celery/celery/labels/Issue%20Type:%20Bug","name":"Issue Type: Bug","color":"e11d21"},{"url":"https://api.github.com/repos/celery/celery/labels/Worker%20Hangs","name":"Worker Hangs","color":"E60026"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2014-12-24T09:15:09Z","updated_at":"2015-12-14T21:51:04Z","closed_at":"2015-12-14T21:51:04Z","body":"After about two hours workers stop consuming tasks.\r\n\r\nWe have 4 ubuntu 12.04 servers, each one with one worker and a concurrency of 15. One of these servers has another worker with the concurrency set to 1 that consumes messages from a different queue than the others and the celery beat process. We have set maxtasksperchild=50. We use the prefork threading model. \r\nWhen this issue occurs, we can see in the log:\r\n\r\n2014-12-23 15:38:40,309 ERROR [celery.concurrency.asynpool asynpool.py:verify_process_alive:505] Timed out waiting for UP message from <Worker(Worker-2027, started daemon)>\r\n\r\nWe have these libraries installed in a virtualenv:\r\n\r\namqp (1.4.6)\r\nanyjson (0.3.3)\r\nargparse (1.2.1)\r\nbehave (1.2.4)\r\nbilliard (3.3.0.18)\r\ncelery (3.1.16)\r\ncx-Oracle (5.1.2)\r\ndistribute (0.7.3)\r\nDjango (1.6.1)\r\ndjango-celery (3.1.1)\r\ndjango-debug-toolbar (0.11.0)\r\ndjango-dt-auth (0.3)\r\ndjango-haystack (2.2.0)\r\ndjango-optimistic-lock (0.1)\r\ndjango-rosetta (0.7.3)\r\ndjdtcommands (0.4)\r\nelasticsearch (1.2.0)\r\nenum34 (1.0)\r\nhtml5lib (0.999)\r\nipython (1.1.0)\r\nkombu (3.0.23)\r\nlibrabbitmq (1.6.1)\r\nlxml (3.2.4)\r\nparse (1.6.4)\r\nparse-type (0.3.4)\r\npdfgen (0.1.21)\r\npdfminer (20140328)\r\nPIL (1.1.7)\r\nPillow (2.4.0)\r\npip (1.5.6)\r\npisa (3.0.33)\r\npy3270 (0.2.0)\r\npyelasticsearch (0.6.1)\r\npymongo (2.6.3)\r\npyOpenSSL (0.13.1)\r\npyPdf (1.13)\r\nPyPDF2 (1.19)\r\npysolr (3.1.0)\r\npython-dateutil (2.2)\r\npytz (2014.9)\r\nqrcode (5.1)\r\nraven (4.0.2)\r\nreadline (6.2.4.1)\r\nreportlab (2.7)\r\nrequests (2.2.0)\r\nselenium (2.43.0)\r\nsetuptools (3.4.1)\r\nsimplejson (3.3.1)\r\nsix (1.4.1)\r\nsmartsec (0.19)\r\nsqlparse (0.1.10)\r\nsuds (0.5)\r\nurllib3 (1.9)\r\nuWSGI (2.0)\r\nuwsgitop (0.6.2)\r\nwsgiref (0.1.2)\r\nxhtml2pdf (0.0.5)\r\n\r\nThank you !\r\n"},"comment":{"url":"https://api.github.com/repos/celery/celery/issues/comments/164570863","html_url":"https://github.com/celery/celery/issues/2431#issuecomment-164570863","issue_url":"https://api.github.com/repos/celery/celery/issues/2431","id":164570863,"user":{"login":"ask","id":1558,"avatar_url":"https://avatars.githubusercontent.com/u/1558?v=3","gravatar_id":"","url":"https://api.github.com/users/ask","html_url":"https://github.com/ask","followers_url":"https://api.github.com/users/ask/followers","following_url":"https://api.github.com/users/ask/following{/other_user}","gists_url":"https://api.github.com/users/ask/gists{/gist_id}","starred_url":"https://api.github.com/users/ask/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ask/subscriptions","organizations_url":"https://api.github.com/users/ask/orgs","repos_url":"https://api.github.com/users/ask/repos","events_url":"https://api.github.com/users/ask/events{/privacy}","received_events_url":"https://api.github.com/users/ask/received_events","type":"User","site_admin":false},"created_at":"2015-12-14T21:51:04Z","updated_at":"2015-12-14T21:51:04Z","body":"Closing due to inactivity,  may reopen if we get more information."}}