* Support Drop Table in serverless (include Snapshotter, Writelogger)
* Finish Database methods
Things like:
- `Databases`
- `DatabaseByID`
- `DatabaseByName`
- `DropDatabase`
* Change Poller to use NodeService instead of its own map
Instead of the Poller maintaining its own map of Addresses to poll, this
commit changes the Poller to use the NodeService interface to get all
known nodes from the Controller.
The next commit needs to:
Next, the logic in the boltdb NodeService implementation was moved to
the boltdb Balancer implementation. That way, the Balancer can be the
source of truth for all things nodes/workers/jobs.
* Move NodeService from Controller to Balancer
This commit moves the implementation of the NodeService into the
Balancer, and aligns `Balancer.AddWorker` with `NodeService.CreateNode`
so that they stay in sync. (Same for `Balancer.RemoveWorker` and
`NodeService.DeleteNode`).
* fix import of private repo
* Fix go vet issues
* Fix bug in DeregisterNode
We need to remove the node from the NodeService even if it's not
assigned to a database. The logic had a bug in it.
This also adds some no-op implementations for SnapshotService and
WriteloggerService. If a directory was not configured for that, then the
computer node would panic on trying to read from the Snapshotter upon
receiving a Directive.
* queryer response content-type: json
* Add support for NULL to WriteloggerDir and SnapshotterDir configs
This commit changes the way WriteLoggerDir and SnapshotterDir are
handled.
If value is empty `""`, an error will be returned on computer startup.
If value is `"NULL"`, a no-op implementation of the service will be
used. This would be for a case that wanted to run serverless on-prem
with no durable storage.
Finally, any other value will be used as the directory to use.
Some things which aren't considered here and may result in unexpected
behavior:
- a value with spaces `" "`
- any "null" which is not "NULL"... like lowercase.
* Finish the DropTable test
* Change "disable service" value to case-insensitive "off"
This commit also removes an unnecessary sleep in the tests.
* Fix docker-compose variables for IDK test
Co-authored-by: Matthew Jaffee <jaffee@pilosa.com>
* Database isolation: Balancer
Remove naive Balancer
remove debugging lines
Thread dax.Transaction through Controller
Change role to roleType
Swap out Balancer interface with new one
Standardize InvalidTransaction error
Add some interface comments
* Remove type.Worker; replace with type.Address
* Remove database validate from Queryer
This is already being handled in the `CreateTable()` method. Prior
to doing that validation, we were getting a panic, but that's no longer
the case.
* Remove dax.TableQualifier; replace with dax.QualifiedDatabaseID
* Update IDK test to create database
(cherry picked from commit d971cfc269)
- had to make sure we don't snapshot until directive is fully applied
on a computer... otherwise there's races between loading the files and
truncating the write log.
- added a dirty bit to resources and a bool return to incrementing the
write log... don't snapshot if it returns false because that means
there's been no writes. (but make sure you close the storage transaction!)
- added the actually snapshotting routine which just fires every
<timeout> and serially snapshots everything.
- tweaked some logging
- added ability to get all tables in an org/db or literally all. I
think I just needed the "literally all", but it was natural to allow
it to be scoped to org or DB as well.
(cherry picked from commit b8b08bc9eb)
