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Maniphest T194634

Decommission db1053
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Description

db1053 will be substituted by db1072, then it can be fully decommission.

We still need to:

  • Add pending grants/data to db1073
  • Change m3-slave CNAME to db1073
  • Move backups to db1073
  • Change failover candidate on proxies
  • Failover m3 master to db1072
  • Decommission, too, db1059 T196606

Decommission Checklist

  • - all system services confirmed offline from production use - should be done by DBA team set as spare https://gerrit.wikimedia.org/r/440140
  • - set all icinga checks to maint mode/disabled while reclaim/decommmission takes place. (disabled alerts)
  • - remove system from all lvs/pybal active configuration - should be done by DBA team not in dblists
  • - any service group puppet/heira/dsh config removed - should be done by DBA team not in hiera
  • - remove site.pp (replace with role(spare::system) if system isn't shut down immediately during this process.) - should be done by DBA team: https://gerrit.wikimedia.org/r/440140

START NON-INTERRUPPTABLE STEPS - please assign to @RobH for the non-interrupt steps

  • - disable puppet on host
  • - power down host
  • - disable switch port
  • - switch port assignment noted on this task (for later removal) asw-a-eqiad:ge-2/0/9
  • - remove all remaining puppet references (include role::spare)
  • - remove production dns entries
  • - puppet node clean, puppet node deactivate
  • - remove dbmonitor entries on neodymium/sarin: sudo curl -X DELETE https://debmonitor.discovery.wmnet/hosts/${HOST_FQDN} --cert /etc/debmonitor/ssl/cert.pem --key /etc/debmonitor/ssl/server.key

END NON-INTERRUPPTABLE STEPS

  • - mark disk #3 as non usable - must be degaussed for erasure - it has smart errors
  • - mark disk #8 as non usable - must be degaussed for erasure - it has smart errors
  • - mark disk #10 as non usable - must be degaussed for erasure - it has smart errors
  • - system disks wiped (by onsite)
  • - IF DECOM: system unracked and decommissioned (by onsite), update racktables with result
  • - IF DECOM: switch port configration removed from switch once system is unracked.
  • - IF DECOM: add system to decommission tracking google sheet
  • - IF DECOM: mgmt dns entries removed.

Details

SubjectRepoBranchLines +/-
decom db1053operations/puppetproduction+0 -10
decom prod dns for db1053operations/dnsmaster+1 -2
mariadb: Remove references to db1053 and db1059 and set them as spareoperations/puppetproduction+4 -4
dblists: Remove db1059 and db1053 for decommissionoperations/softwaremaster+1 -4
mariadb: Make db1072, and not db1053, the passive m3 failoveroperations/puppetproduction+4 -4
mariadb: Move m3-slave from db1053 to db1072operations/dnsmaster+1 -1
mariadb: Move m3 backups from db1053 to db1072operations/puppetproduction+1 -1
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Related Objects
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StatusSubtypeAssignedTask
 ResolvedNoneT186320 Decommission db1051-db1060 (DBA tracking)
 Resolved• CmjohnsonT194634 Decommission db1053

Event Timeline

• jcrespo triaged this task as Medium priority.May 14 2018, 9:48 AM
• jcrespo created this task.
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMay 14 2018, 9:48 AM
• jcrespo merged a task: T194733: Degraded RAID on db1053.May 15 2018, 9:33 AM
• jcrespo added a subscriber: ops-monitoring-bot.
gerritbot subscribed.May 15 2018, 11:13 AM

Change 433141 had a related patch set uploaded (by Jcrespo; owner: Jcrespo):
[operations/puppet@production] mariadb: Move m3 backups from db1053 to db1072

https://gerrit.wikimedia.org/r/433141

gerritbot added a project: Patch-For-Review.May 15 2018, 11:13 AM

Change 433141 merged by Jcrespo:
[operations/puppet@production] mariadb: Move m3 backups from db1053 to db1072

https://gerrit.wikimedia.org/r/433141

• jcrespo added a comment.May 15 2018, 3:54 PM

Grants seem fixed. I am not moving the following ones, as they may be unused:

  • fabmigrate
  • bzmigrate
  • rtmigrate
gerritbot added a comment.May 15 2018, 3:56 PM

Change 433175 had a related patch set uploaded (by Jcrespo; owner: Jcrespo):
[operations/dns@master] mariadb: Move m3-slave from db1053 to db1072

https://gerrit.wikimedia.org/r/433175

gerritbot added a comment.May 15 2018, 4:00 PM

Change 433175 merged by Jcrespo:
[operations/dns@master] mariadb: Move m3-slave from db1053 to db1072

https://gerrit.wikimedia.org/r/433175

gerritbot added a comment.May 15 2018, 4:11 PM

Change 433180 had a related patch set uploaded (by Jcrespo; owner: Jcrespo):
[operations/puppet@production] mariadb: Make db1072, and not db1053, the passive m3 failover

https://gerrit.wikimedia.org/r/433180

gerritbot added a comment.May 15 2018, 4:11 PM

Change 433180 merged by Jcrespo:
[operations/puppet@production] mariadb: Make db1072, and not db1053, the passive m3 failover

https://gerrit.wikimedia.org/r/433180

• jcrespo updated the task description. (Show Details)May 15 2018, 5:06 PM
• jcrespo added a subscriber: • mmodell.

@mmodell upcoming failover of Phabricator database, heads up (no action needed from you).

Marostegui moved this task from Triage to In progress on the DBA board.May 16 2018, 10:16 AM
Marostegui added a comment.May 18 2018, 5:42 AM

Let's make sure we label this disk, somehow, as broken when we decommission this host - so it is not reused in the future to replace other disks:

Enclosure Device ID: 32
			Slot Number: 10
• jcrespo updated the task description. (Show Details)Jun 7 2018, 6:45 AM
• jcrespo updated the task description. (Show Details)
• jcrespo added a subscriber: RobH.
gerritbot added a comment.Jun 7 2018, 1:38 PM

Change 438004 had a related patch set uploaded (by Jcrespo; owner: Jcrespo):
[operations/software@master] dblists: Remove db1059 and db1053 for decommission

https://gerrit.wikimedia.org/r/438004

gerritbot added a comment.Jun 7 2018, 2:03 PM

Change 438004 merged by Jcrespo:
[operations/software@master] dblists: Remove db1059 and db1053 for decommission

https://gerrit.wikimedia.org/r/438004

Marostegui updated the task description. (Show Details)Jun 12 2018, 10:37 AM
Marostegui updated the task description. (Show Details)
gerritbot added a comment.Jun 13 2018, 3:21 PM

Change 440140 had a related patch set uploaded (by Jcrespo; owner: Jcrespo):
[operations/puppet@production] mariadb: Remove refereces to db1053 and db1059 and set them as spare

https://gerrit.wikimedia.org/r/440140

Stashbot subscribed.Jun 13 2018, 3:25 PM

Mentioned in SAL (#wikimedia-operations) [2018-06-13T15:25:27Z] <jynus> stopping db1053 and db1059 in preparation for decomm T194634 T196606

Stashbot mentioned this in T196606: Decommission db1059.Jun 13 2018, 3:25 PM
gerritbot added a comment.Jun 13 2018, 4:04 PM

Change 440140 merged by Jcrespo:
[operations/puppet@production] mariadb: Remove references to db1053 and db1059 and set them as spare

https://gerrit.wikimedia.org/r/440140

• jcrespo assigned this task to RobH.Jun 13 2018, 4:44 PM
• jcrespo updated the task description. (Show Details)
• jcrespo moved this task from In progress to Done on the DBA board.
• jcrespo edited projects, added decommission-hardware; removed Patch-For-Review.
Marostegui mentioned this in T197706: Degraded RAID on db1053.Jun 19 2018, 7:55 PM
• Vvjjkkii renamed this task from Decommission db1053 to t0caaaaaaa.Jul 1 2018, 1:10 AM
• Vvjjkkii removed RobH as the assignee of this task.
• Vvjjkkii raised the priority of this task from Medium to High.
• Vvjjkkii added projects: CheckUser, Connected-Open-Heritage-Batch-uploads (RAÄ-KMB_1_2017-02), Tamil-Sites, Gamepress, Hashtags, Jade, KartoEditor, Language-2018-Apr-June, New-Editor-Experiences, Mail, TCB-Team (now WMDE-TechWish).
• Vvjjkkii updated the task description. (Show Details)
• Vvjjkkii removed subscribers: gerritbot, Aklapper.
Marostegui renamed this task from t0caaaaaaa to Decommission db1053.Jul 1 2018, 6:44 PM
Marostegui assigned this task to • Cmjohnson.
Marostegui lowered the priority of this task from High to Medium.
Marostegui removed projects: TCB-Team (now WMDE-TechWish), Mail, New-Editor-Experiences, Language-2018-Apr-June, KartoEditor, Jade, Hashtags, Gamepress, Tamil-Sites, Connected-Open-Heritage-Batch-uploads (RAÄ-KMB_1_2017-02), CheckUser.
Marostegui updated the task description. (Show Details)
CommunityTechBot reassigned this task from • Cmjohnson to RobH.Jul 5 2018, 6:41 PM
CommunityTechBot updated the task description. (Show Details)
CommunityTechBot added a subscriber: • Cmjohnson.
RobH updated the task description. (Show Details)Jul 19 2018, 8:25 PM
gerritbot added a comment.Jul 19 2018, 8:26 PM

Change 446903 had a related patch set uploaded (by RobH; owner: RobH):
[operations/dns@master] decom prod dns for db1053

https://gerrit.wikimedia.org/r/446903

gerritbot added a project: Patch-For-Review.Jul 19 2018, 8:26 PM

Change 446903 merged by RobH:
[operations/dns@master] decom prod dns for db1053

https://gerrit.wikimedia.org/r/446903

gerritbot added a comment.Jul 19 2018, 8:30 PM

Change 446904 had a related patch set uploaded (by RobH; owner: RobH):
[operations/puppet@production] decom db1053

https://gerrit.wikimedia.org/r/446904

gerritbot added a comment.Jul 19 2018, 8:33 PM

Change 446904 merged by RobH:
[operations/puppet@production] decom db1053

https://gerrit.wikimedia.org/r/446904

RobH reassigned this task from RobH to • Cmjohnson.Jul 19 2018, 8:36 PM
RobH removed a project: Patch-For-Review.
RobH updated the task description. (Show Details)
RobH moved this task from Backlog to pending onsite steps (eqiad) on the decommission-hardware board.
RobH added a project: ops-eqiad.
Restricted Application added a project: SRE. · View Herald TranscriptJul 19 2018, 8:37 PM
RobH moved this task from Backlog to Decommission on the ops-eqiad board.Jul 19 2018, 8:37 PM
• Cmjohnson moved this task from Decommission to UnRacking Tasks on the ops-eqiad board.Aug 1 2018, 2:23 PM
• Cmjohnson closed this task as Resolved.Aug 7 2018, 5:04 PM
• Cmjohnson updated the task description. (Show Details)
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