From ed0753ad224f0c65133bd7a63180257eecd9f5e3 Mon Sep 17 00:00:00 2001 From: Jasper Ras Date: Wed, 8 Jan 2025 10:48:09 +0100 Subject: vault backup: 2025-01-08 10:48:09 --- .../2 areas/work/groupvps/dedicated-cpu-cores.md | 4 ++++ .trash/2 areas/work/groupvps/image-updater.md | 6 ++++++ .../work/groupvps/operational/blkio-errors.md | 14 ++++++++++++ .../work/groupvps/operational/fix-tc-issues.md | 25 ++++++++++++++++++++++ .../work/groupvps/operational/maintenance-log.md | 3 +++ .../operational/storage-load-2024-12-05.md | 12 +++++++++++ .../work/groupvps/sollicitatie-vragenlijst.md | 7 ++++++ .trash/2 areas/work/groupvps/team.md | 10 +++++++++ .../2 areas/work/groupvps/vps2-lej1 compute mix.md | 5 +++++ 9 files changed, 86 insertions(+) create mode 100644 .trash/2 areas/work/groupvps/dedicated-cpu-cores.md create mode 100644 .trash/2 areas/work/groupvps/image-updater.md create mode 100644 .trash/2 areas/work/groupvps/operational/blkio-errors.md create mode 100644 .trash/2 areas/work/groupvps/operational/fix-tc-issues.md create mode 100644 .trash/2 areas/work/groupvps/operational/maintenance-log.md create mode 100644 .trash/2 areas/work/groupvps/operational/storage-load-2024-12-05.md create mode 100644 .trash/2 areas/work/groupvps/sollicitatie-vragenlijst.md create mode 100644 .trash/2 areas/work/groupvps/team.md create mode 100644 .trash/2 areas/work/groupvps/vps2-lej1 compute mix.md (limited to '.trash/2 areas/work/groupvps') diff --git a/.trash/2 areas/work/groupvps/dedicated-cpu-cores.md b/.trash/2 areas/work/groupvps/dedicated-cpu-cores.md new file mode 100644 index 0000000..6a82233 --- /dev/null +++ b/.trash/2 areas/work/groupvps/dedicated-cpu-cores.md @@ -0,0 +1,4 @@ +We want to sell dedicated CPU cores. This doc will track my notes on that topic + +readlist +* https://docs.openstack.org/nova/latest/admin/cpu-topologies.html \ No newline at end of file diff --git a/.trash/2 areas/work/groupvps/image-updater.md b/.trash/2 areas/work/groupvps/image-updater.md new file mode 100644 index 0000000..274d16f --- /dev/null +++ b/.trash/2 areas/work/groupvps/image-updater.md @@ -0,0 +1,6 @@ +https://gitlab.group.one/groupvps/openstack-image-updater + +Updater runs in CI. + +`images.yaml`; contains which images +`cloud_images.yaml`; can override params for all images in a specific cloud, sadly cannot override per specific image. diff --git a/.trash/2 areas/work/groupvps/operational/blkio-errors.md b/.trash/2 areas/work/groupvps/operational/blkio-errors.md new file mode 100644 index 0000000..2b666a3 --- /dev/null +++ b/.trash/2 areas/work/groupvps/operational/blkio-errors.md @@ -0,0 +1,14 @@ +Dmesg is spewing blkio errors + +Find out which device: e.g dm-4, then: +``` +sudo virsh list --all --name | while read dom; do sudo virsh dumpxml $dom | grep dm-4 && echo $dom; done +``` +To find which domain +After which: +``` +sudo virsh dumpxml $domain +``` +to find the hostname + +reboot it hard. \ No newline at end of file diff --git a/.trash/2 areas/work/groupvps/operational/fix-tc-issues.md b/.trash/2 areas/work/groupvps/operational/fix-tc-issues.md new file mode 100644 index 0000000..4ad3bf8 --- /dev/null +++ b/.trash/2 areas/work/groupvps/operational/fix-tc-issues.md @@ -0,0 +1,25 @@ +Probleem: referenties in ovs naar devices die niet meer bestaan. Hij probeert vervolgens een nieuw device aan te maken met een qdisc op zo'n niet bestaande device. + +``` +sudo grep -r 'could not open network device' /var/log/openvswitch/ | grep -oi 'tap[a-z0-9\-]*' | uniq > ports_no_device +``` +``` +sudo ip l l | grep ports_no_device | grep -oi 'tap[a-z0-9\-]*' > ports_with_device +``` +``` +for P in $(cat ports_no_device | grep -v -f ports_with_device); do sudo ovs-vsctl del-port $P; done +``` +``` +sudo systemctl restart ovn-controller +``` + + +Rutger versie: +``` +sudo grep 'could not open network device' /var/log/openvswitch/ovs-vswitchd.log | grep -oi 'tap[a-z0-9\-]*' | sort | uniq | while read dev; do ip l l $dev || sudo ovs-vsctl del-port $dev; done; sudo systemctl restart ovn-controller +``` + + +Dus: ovs-vsctl del-port is nice. + +Niet vergeten ovn-controller te herstarten. diff --git a/.trash/2 areas/work/groupvps/operational/maintenance-log.md b/.trash/2 areas/work/groupvps/operational/maintenance-log.md new file mode 100644 index 0000000..79c8a7a --- /dev/null +++ b/.trash/2 areas/work/groupvps/operational/maintenance-log.md @@ -0,0 +1,3 @@ +### 2024-12-10 +- manually updated instance record host/node for instance `10924c62-7f0f-4df1-9dd8-9108e3cb0764` +- suspended guest: virsh dompmwakeup and try again diff --git a/.trash/2 areas/work/groupvps/operational/storage-load-2024-12-05.md b/.trash/2 areas/work/groupvps/operational/storage-load-2024-12-05.md new file mode 100644 index 0000000..6931d2d --- /dev/null +++ b/.trash/2 areas/work/groupvps/operational/storage-load-2024-12-05.md @@ -0,0 +1,12 @@ +Vraag uitgezet bij Allan voor meer informatie. +Allan: het komt al 1.5 maand voor; https://group-onecom.slack.com/archives/C02FT9KEFNH/p1729863978525299 + +Uit dat bericht blijkt dat Jerry zou kijken of het Acronis is. + +Jeroen gecontacteerd om ff te vragen of ze dat al gedaan hebben; jeroen denkt dat het niet door Acronis komt omdat dat vooral read ops zijn en verspreid over de nacht. + +Allan stuurt graph met kantteking: "seems to involve alot of LUNs": `https://prometheus2.env.vps1-cph8.one.com/graph?g0.expr=count(lun_write_ops%20%3E%20(lun_write_ops%20offset%2020m%20%2B%20100))&g0.tab=0&g0.display_mode=lines&g0.show_exemplars=0&g0.range_input=30m&g0.end_input=2024-12-05%2005%3A47%3A35&g0.moment_input=2024-12-05%2005%3A47%3A35` + +Jeroen dacht mogelijk mysql dumps van shared, maar zou ook verspreid moeten zijn: ging kijken wanneer die gdraaid hadden, niks meer over gehoord. + +O.b.v LUN graph heb ik wat LUNs gepakt en bleek allemaal managed vps te zijn; Jeroen op onderzoek naar wat daar binnen rond die tijd gebeurd. Verdenkt PSA crons. \ No newline at end of file diff --git a/.trash/2 areas/work/groupvps/sollicitatie-vragenlijst.md b/.trash/2 areas/work/groupvps/sollicitatie-vragenlijst.md new file mode 100644 index 0000000..08e2f89 --- /dev/null +++ b/.trash/2 areas/work/groupvps/sollicitatie-vragenlijst.md @@ -0,0 +1,7 @@ +- Ben je bekend met scrum, agile, kanban, jira etc? + + +Technische vragen: +threading, race conditions, deadlocks +message queue +- Kun je uitleggen hoe een binary search werkt \ No newline at end of file diff --git a/.trash/2 areas/work/groupvps/team.md b/.trash/2 areas/work/groupvps/team.md new file mode 100644 index 0000000..191485e --- /dev/null +++ b/.trash/2 areas/work/groupvps/team.md @@ -0,0 +1,10 @@ +# Technical Details +Maximum disk size local storage defined in QCOW2 image. +# SOP +DHCP ports gone -> openstack subnet set --no-dhcp, openstack subnet set --dhpc. (toggle) -> they should be recreated. (https://bugs.launchpad.net/ubuntu/+source/neutron/+bug/2015377) +## Maintenance +Announcing maintenance: +* Maintenance that requires customer interaction: at least 14 days ahead of time +* Regular maintenance with few seconds downtime at most: at least 7 days ahead of time +* Emergency maintenance: as soon as possible and preferably before doing anything +Notify MCS: mcs-support@group.one diff --git a/.trash/2 areas/work/groupvps/vps2-lej1 compute mix.md b/.trash/2 areas/work/groupvps/vps2-lej1 compute mix.md new file mode 100644 index 0000000..cb41fae --- /dev/null +++ b/.trash/2 areas/work/groupvps/vps2-lej1 compute mix.md @@ -0,0 +1,5 @@ +VPS2-LEJ1 is a mixed bag of shared and local storage; +nodes 1-8 are BOTH shared and local storage +nodes 9-10 are exclusively shared storage + +.. wap \ No newline at end of file -- cgit v1.2.3