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{"id":"openstack%2Fkeystonemiddleware~793917","triplet_id":"openstack%2Fkeystonemiddleware~stable%2Fwallaby~I0e96334b65a0bf369ebf1d88651d13feb8d2ecac","project":"openstack/keystonemiddleware","branch":"stable/wallaby","topic":"bug/1883659-stable/wallaby","attention_set":{},"removed_from_attention_set":{"28522":{"account":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"last_update":"2024-03-26 18:27:51.000000000","reason":"Change was abandoned"}},"hashtags":[],"change_id":"I0e96334b65a0bf369ebf1d88651d13feb8d2ecac","subject":"Switch to eventlet-safe oslo.cache\u0027s MemcacheClientPool","status":"ABANDONED","created":"2021-06-01 09:00:17.000000000","updated":"2024-03-26 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Arbet","email":"michal.arbet@ultimum.io","username":"michalarbet"},"state":"REVIEWER"},{"updated":"2021-06-01 09:03:24.000000000","updated_by":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"reviewer":{"_account_id":17685,"name":"Elod Illes","email":"elod.illes@est.tech","username":"elod.illes"},"state":"REVIEWER"},{"updated":"2021-06-01 10:36:47.000000000","updated_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"reviewer":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"state":"REVIEWER"},{"updated":"2021-06-01 14:23:30.000000000","updated_by":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"reviewer":{"_account_id":11904,"name":"Sean McGinnis","email":"sean.mcginnis@gmail.com","username":"SeanM"},"state":"REVIEWER"}],"messages":[{"id":"c431794f5715839b3530a810dc8386bc08fb4abb","tag":"autogenerated:gerrit:newPatchSet","author":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"date":"2021-06-01 09:00:17.000000000","message":"Patch Set 1: Cherry Picked from branch master.","accounts_in_message":[],"_revision_number":1},{"id":"a8923862674469bcff84c04a8275cda3914706ae","author":{"_account_id":27339,"name":"Michal Arbet","email":"michal.arbet@ultimum.io","username":"michalarbet"},"date":"2021-06-01 09:19:45.000000000","message":"Patch Set 1: Code-Review+1\n\nCan be then","accounts_in_message":[],"_revision_number":1},{"id":"0677b2de64af614acdb9d97bec022bed61669c2d","author":{"_account_id":27339,"name":"Michal Arbet","email":"michal.arbet@ultimum.io","username":"michalarbet"},"date":"2021-06-01 09:21:48.000000000","message":"Patch Set 1:\n\nHerve, I don\u0027t know how release is processed, but can be this included in https://releases.openstack.org/wallaby/ as bump keystonemiddleware version ?","accounts_in_message":[],"_revision_number":1},{"id":"0f7af52109fd98550ea7cb8f31e6dcb0242011fc","tag":"autogenerated:zuul:check","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2021-06-01 10:36:47.000000000","message":"Patch Set 1: Verified-1\n\nBuild failed (check pipeline).  For information on how to proceed, see\nhttps://docs.opendev.org/opendev/infra-manual/latest/developers.html#automated-testing\n\n\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/3655bef27c344f37ba260f97ae50d657 : SUCCESS in 5m 06s\n- openstack-tox-lower-constraints https://zuul.opendev.org/t/openstack/build/f2ed471b57064272a0bc3d0aab5ec835 : FAILURE in 3m 25s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/741ac9be1bd44042b9f7af8afc8c17fc : SUCCESS in 3m 32s\n- openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/883c111bcab441faa5db0bb403145d21 : SUCCESS in 4m 01s\n- openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cb699e34a03f43679c174d005deec0c7 : SUCCESS in 4m 14s\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3d6478d256aa43c5b9e9dabc6d8f15e0 : FAILURE in 5m 26s\n- tempest-full-py3 https://zuul.opendev.org/t/openstack/build/15700f316684461897bebfdcc157af7b : SUCCESS in 1h 30m 36s\n- build-openstack-releasenotes https://zuul.opendev.org/t/openstack/build/986e24de0b6b4a81ae2a117532d1eb94 : SUCCESS in 3m 57s","accounts_in_message":[],"_revision_number":1},{"id":"8ed2fd32de8c704291edc94b7ccfd4b1402e3c87","author":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"date":"2021-06-01 11:41:25.000000000","message":"Patch Set 1:\n\n\u003e Patch Set 1:\n\u003e \n\u003e Herve, I don\u0027t know how release is processed, but can be this included in https://releases.openstack.org/wallaby/ as bump keystonemiddleware version ?\n\nIf these changes will be merged then yes we will release them for wallaby and for the other stable branches.\n\nI added Elod to the reviewers, he is stable maintainer.\n\nWe observed many similar related cases downstream and the switching the option in the configuration helped us to ride away of this issue. Hopefully these changes will be merged.","accounts_in_message":[],"_revision_number":1},{"id":"0d0a3021dd9051e2990df2bb145e79087c5684d0","tag":"autogenerated:gerrit:newPatchSet","author":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"date":"2021-06-01 11:49:55.000000000","message":"Patch Set 2: Patch Set 1 was rebased","accounts_in_message":[],"_revision_number":2},{"id":"c9717a018863252ed29327d4815641e95f569740","tag":"autogenerated:zuul:check","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2021-06-01 13:33:23.000000000","message":"Patch Set 2: Verified-1\n\nBuild failed (check pipeline).  For information on how to proceed, see\nhttps://docs.opendev.org/opendev/infra-manual/latest/developers.html#automated-testing\n\n\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/4ccc2cb79d024903b0b4b3acac6ec008 : SUCCESS in 4m 17s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/7115ee6a4e04405283e88a7e18a18311 : SUCCESS in 4m 37s\n- openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cfb6849b28f74fe0a4dc702a5862de13 : SUCCESS in 4m 06s\n- openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c2f432dd65846fb9966e2a80f056d4c : SUCCESS in 4m 29s\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/050611ecb42741e8a66915dcf9a18116 : FAILURE in 5m 59s\n- tempest-full-py3 https://zuul.opendev.org/t/openstack/build/06cdd0fee27e43109fad42afaf5e2e08 : SUCCESS in 1h 37m 34s\n- build-openstack-releasenotes https://zuul.opendev.org/t/openstack/build/657b0c18dee2487d88ed3543bf4fcc0c : SUCCESS in 4m 54s\n- openstack-tox-lower-constraints https://zuul.opendev.org/t/openstack/build/35de5b65681540b48ea4737028b22b10 : FAILURE in 3m 13s (non-voting)","accounts_in_message":[],"_revision_number":2},{"id":"799da32585e5b59c598792dd08226c4580a7ccef","author":{"_account_id":17685,"name":"Elod Illes","email":"elod.illes@est.tech","username":"elod.illes"},"date":"2021-06-01 13:39:29.000000000","message":"Patch Set 2: Code-Review-1\n\nAs I understand this patch changes default configuration, which is considered an \u0027incompatible configuration change\u0027 and that is not allowed according to stable policy [1].\n(Sorry Hervé, I did not realized this at first glance)\n\nFortunately, as I understand the workaround, to fix the mentioned bugs, is pretty easy and can be solved with the very same configuration change.\n\n[1] https://docs.openstack.org/project-team-guide/stable-branches.html#review-guidelines","accounts_in_message":[],"_revision_number":2},{"id":"ec169c5b4a0bc8f2c924489c9cd5c4cc3b73add7","author":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"date":"2021-06-01 14:23:30.000000000","message":"Patch Set 2:\n\nThanks Elod for your opinion.\n\nI agree that that will change the default configuration, unfortunatelly the default configuration led to memcached connections issues and performance degradations. In other words the default config doesn\u0027t work and lead to errors.\n\nI agree that this problem can be fixed by passing the right config, unfortunatelly lot of downstream customers need to update all their environments to fix the issue.\n\nSwitching the options will allow us to be proactive and will allow downstream maintainers to spread the fix with minor upgrade, without requiring lot of maintenance (template updates, hiera keys, etc) from users/operators.\n\nAlso we should notice that keystonemiddleware\u0027s cache module is a bit outdated and that switching the option will replace it by a well know backend already in openstack/oslo.cache since awhile.\n\nAs discussed with you (Elod) I Adding Sean to get his feedback too.","accounts_in_message":[],"_revision_number":2},{"id":"0eb03b7795ec67cdbe1e027c0b3bb100c8171c58","author":{"_account_id":27339,"name":"Michal Arbet","email":"michal.arbet@ultimum.io","username":"michalarbet"},"date":"2022-07-12 18:32:45.000000000","message":"Patch Set 2: Code-Review+1\n\n(1 comment)","accounts_in_message":[],"_revision_number":2},{"id":"d7f47697792ecbd0389f96174da701b24e100bfb","author":{"_account_id":27339,"name":"Michal Arbet","email":"michal.arbet@ultimum.io","username":"michalarbet"},"date":"2022-07-12 18:33:50.000000000","message":"Patch Set 2:\n\n(1 comment)","accounts_in_message":[],"_revision_number":2},{"id":"f1409d84700310c0a2d30ac723a14534620ecc3d","tag":"autogenerated:gerrit:abandon","author":{"_account_id":17685,"name":"Elod Illes","email":"elod.illes@est.tech","username":"elod.illes"},"date":"2024-03-26 18:27:51.000000000","message":"Abandoned\n\nstable/wallaby branch of openstack/keystonemiddleware is about to be deleted. To be able to do that, all open patches need to be abandoned. Please cherry pick the patch to unmaintained/wallaby if you want to further work on this patch.","accounts_in_message":[],"_revision_number":2}],"current_revision_number":2,"current_revision":"20fb44ca3c6db38c5771854f871ed81943929eeb","revisions":{"e5ab6d77564172e2f4860039ed1208dbaa8c5436":{"kind":"REWORK","_number":1,"created":"2021-06-01 09:00:17.000000000","uploader":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"ref":"refs/changes/17/793917/1","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/keystonemiddleware","ref":"refs/changes/17/793917/1","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/1 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/1 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/1 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/1"}}},"commit":{"parents":[{"commit":"3659bdad861c1648dc53a1f66c968e82b498eb9c","subject":"Merge \"[goal] Migrate testing to ubuntu focal\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/3659bdad861c1648dc53a1f66c968e82b498eb9c"}]}],"author":{"name":"Michal Arbet","email":"michal.arbet@ultimum.io","date":"2021-02-10 13:47:17.000000000","tz":60},"committer":{"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","date":"2021-06-01 09:00:17.000000000","tz":0},"subject":"Switch to eventlet-safe oslo.cache\u0027s MemcacheClientPool","message":"Switch to eventlet-safe oslo.cache\u0027s MemcacheClientPool\n\nIn past days there were discussions about various issues\nwith memcached connections [1][2][3].\n\nAfter investigation it looks like common root cause for above\nproblems is keystonemiddleware. More precisely said the way\nhow keystonemiddleware is caching tokens.\n\nCurrently it\u0027s using some home-made CachePool with direct\nusage of memcached library, moreover it looks like its\napproach is not eventlet-safe.\nDiscussion can be mainly found in [4].\n\nFortunately keystonemiddleware can use \"advanced cache pool\",\nwhich is oslo.cache\u0027s implementation and was added long time ago [5],\nbut it is turned on only if memcache_use_advanced_pool\u003dTrue.\n\nThis patch is switching to more elaborated oslo.cache CachePool\nand adding deprecation warning about eventlet-unsafe variant\nof keystonemiddleware\u0027s memcache pool.\n\nHow to reproduce ?\n\nwith memcache_use_advanced_pool\u003dFalse\n\n1. Build clean ENV of openstack\n2. Deploy core projects (keystone,glance,nova,placement...)\n3. Run while true; do COMMAND FOR SERVICE; done\n   - several bashes, in parallel (5-7)\n\nCOMMAND FOR SERVICE:\n- openstack network list\n- openstack volume list\n- openstack server list\n- openstack image list\n\n4. Check memcached connections (which will grow up):\n    - ss | grep 11211 | wc -l   every second\n\nHow to fix and test it ?\n\nRepeat above, to fix:\n - with memcache_use_advanced_pool\u003dTrue\n   OR\n - apply this patch\n\nCompare measurements in graph.\n\n[1] https://bugs.launchpad.net/keystonemiddleware/+bug/1892852\n[2] https://bugs.launchpad.net/oslo.cache/+bug/1888394\n[3] https://bugs.launchpad.net/keystonemiddleware/+bug/1883659\n\n[4] https://review.opendev.org/c/openstack/oslo.cache/+/742193\n\n[5] https://review.opendev.org/c/openstack/keystonemiddleware/+/268664\n\nCloses-Bug: #1883659\nCloses-Bug: #1892852\nCloses-Bug: #1888394\n\nChange-Id: I0e96334b65a0bf369ebf1d88651d13feb8d2ecac\n(cherry picked from commit 788d3c4969e3446778496f3a9055f654602ae2c1)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/e5ab6d77564172e2f4860039ed1208dbaa8c5436"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/e5ab6d77564172e2f4860039ed1208dbaa8c5436"}]},"branch":"refs/heads/stable/wallaby"},"20fb44ca3c6db38c5771854f871ed81943929eeb":{"kind":"TRIVIAL_REBASE","_number":2,"created":"2021-06-01 11:49:55.000000000","uploader":{"_account_id":28522,"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","username":"hberaud"},"ref":"refs/changes/17/793917/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/keystonemiddleware","ref":"refs/changes/17/793917/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/keystonemiddleware refs/changes/17/793917/2"}}},"commit":{"parents":[{"commit":"ab95567e719beb9265dfd90017b3781e984a68a0","subject":"Updating lower-constraints job as non voting","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/ab95567e719beb9265dfd90017b3781e984a68a0"}]}],"author":{"name":"Michal Arbet","email":"michal.arbet@ultimum.io","date":"2021-02-10 13:47:17.000000000","tz":60},"committer":{"name":"Hervé Beraud","email":"herveberaud.pro@gmail.com","date":"2021-06-01 11:49:55.000000000","tz":0},"subject":"Switch to eventlet-safe oslo.cache\u0027s MemcacheClientPool","message":"Switch to eventlet-safe oslo.cache\u0027s MemcacheClientPool\n\nIn past days there were discussions about various issues\nwith memcached connections [1][2][3].\n\nAfter investigation it looks like common root cause for above\nproblems is keystonemiddleware. More precisely said the way\nhow keystonemiddleware is caching tokens.\n\nCurrently it\u0027s using some home-made CachePool with direct\nusage of memcached library, moreover it looks like its\napproach is not eventlet-safe.\nDiscussion can be mainly found in [4].\n\nFortunately keystonemiddleware can use \"advanced cache pool\",\nwhich is oslo.cache\u0027s implementation and was added long time ago [5],\nbut it is turned on only if memcache_use_advanced_pool\u003dTrue.\n\nThis patch is switching to more elaborated oslo.cache CachePool\nand adding deprecation warning about eventlet-unsafe variant\nof keystonemiddleware\u0027s memcache pool.\n\nHow to reproduce ?\n\nwith memcache_use_advanced_pool\u003dFalse\n\n1. Build clean ENV of openstack\n2. Deploy core projects (keystone,glance,nova,placement...)\n3. Run while true; do COMMAND FOR SERVICE; done\n   - several bashes, in parallel (5-7)\n\nCOMMAND FOR SERVICE:\n- openstack network list\n- openstack volume list\n- openstack server list\n- openstack image list\n\n4. Check memcached connections (which will grow up):\n    - ss | grep 11211 | wc -l   every second\n\nHow to fix and test it ?\n\nRepeat above, to fix:\n - with memcache_use_advanced_pool\u003dTrue\n   OR\n - apply this patch\n\nCompare measurements in graph.\n\n[1] https://bugs.launchpad.net/keystonemiddleware/+bug/1892852\n[2] https://bugs.launchpad.net/oslo.cache/+bug/1888394\n[3] https://bugs.launchpad.net/keystonemiddleware/+bug/1883659\n\n[4] https://review.opendev.org/c/openstack/oslo.cache/+/742193\n\n[5] https://review.opendev.org/c/openstack/keystonemiddleware/+/268664\n\nCloses-Bug: #1883659\nCloses-Bug: #1892852\nCloses-Bug: #1888394\n\nChange-Id: I0e96334b65a0bf369ebf1d88651d13feb8d2ecac\n(cherry picked from commit 788d3c4969e3446778496f3a9055f654602ae2c1)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/20fb44ca3c6db38c5771854f871ed81943929eeb"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/keystonemiddleware/commit/20fb44ca3c6db38c5771854f871ed81943929eeb"}]},"branch":"refs/heads/stable/wallaby","description":"Rebase"}},"requirements":[],"submit_records":[],"submit_requirements":[{"name":"Verified","description":"Verified in gate by CI","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Verified\u003dMAX AND -label:Verified\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Verified\u003dMAX","label:Verified\u003dMIN"],"atom_explanations":{}}},{"name":"Code-Review","description":"Code reviewed by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Code-Review\u003dMAX","label:Code-Review\u003dMIN"],"atom_explanations":{}}},{"name":"Workflow","description":"Approved for gate by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Workflow\u003dMAX AND -label:Workflow\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Workflow\u003dMAX","label:Workflow\u003dMIN"],"atom_explanations":{}}}]}