As we have successfully migrated our smaller clusters from Elastic -> OpenSearch (see T380752 and T387904), the time has come to migrate our production clusters from Elastic to OpenSearch.
Current status
Progress by number of hosts (updated at end of shift):
overall: 53/116 hosts migrated
codfw: 53/61 hosts migrated
- by row (non-masters only, we will do masters last):
eqiad: 0/55 hosts migrated
Open patches
See the "elastic-2-opensearch" Gerrit topic
Checking progress manually
You can check site.pp in the Puppet repo . See how many hosts are using the old elasticsearch::cirrus role vs. the new cirrus::opensearch role
If you have cumin access, you can also run the following commands: sudo cumin O:elasticsearch::cirrus for the old role, sudo cumin O:cirrus::opensearch for the new role
Creating this ticket to: