Primarily this is in tests (which were caught by temporarily
introducing acts_as_tenant and enabling safety checks), but notably
action cable connections were not working properly, and that's now
fixed.
This adds an initial configuration for staging. Note that we are doing
this ahead of having the full infrastructure in all 3 DCs. So this
this will result in some cross-DC writes for now (e.g. we have a single cache in
IAD). We'll correct this as the infrastructure becomes available.
We'll also run jobs on every app server, until we split them out to
separate instances.
Schema:
- add account_id to tables it was missing from
- make account_id a required column everywhere
- add [account_id] indexes, or add `account_id` to existing indices
Models:
- add `belongs_to :account` to all models (default to using a domain
model's account whenever possible)
- add account_id in all the necessary fixtures
- add account_id to insert_all hashes
- pass account_id to a few initialize calls
Miscellaneous:
- update the import script to set account_id
Note that I'm not adding account_id to the join tables primarily
because I couldn't think of an easy way to populate it without making
it a full Join model, and that was more work than I have time to take
on right now.
This matches the format in the migration files and makes the type_to_sql
override redundant.
The only wart we are left with is that since there are no true UUID
types in MySQL we'll have to assume that binary(16) columns are UUIDs.
In practice this is probably fine as the MySQL adapter doesn't map any
other types to binary.
- Switch to binary 16 for UUID keys
- Remove AccountScopedRecord base class, all model use binary uuids now
- Fix the search sql to serialize uuids properly
- Patch the MySQL schema dumper to output binary lengths
Create search_index_0 to search_index_15 tables and shard each index by
account id. MySQL has no ability to pre-filter fulltext indexes by
another field so this is the best bet for improving performance.
Each fulltest index internally creates 11 sub tables (see
https://dev.mysql.com/doc/refman/8.4/en/innodb-fulltext-index.html) so
actually we have 192 tables in total here.
The search_index table name is generated dynamically based on the
account_id.
Note that the query logs in this version of AR::Tenanted have changed,
to use standard Rails query log tags, which I have enabled.
Note that enabling Rails query log tags disables prepared
statements. I don't think turning off prepared statements will impact
our performance, but I'll verify that post-deploy (we have dashboards
for a reason).
Stanko K.R.