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be4f365eaf
Switch Serverless from using BoltDB to Postgres as metadata store. Previously, the controller stored all metadata to BoltDB. This implements SQLDB (currently Postgres flavored) as the backing store for metadata. This will allow us to have multiple instances of the controller running for HA, and to easily inspect and repair the contents of the metadata store. Unfortunately, it was not straightforward to keep the BoltDB implementation working alongside the SQL one, so it will be removed in a later patch. Once that's done, the SQL implementation should allow for a number of simplifications of the schemar and balancer interfaces. Database migration is built directly into the application by embedding the migration files and logic from the `soda` command line tool. When connecting to the RDBMS, the app will always attempt to create the necessary database and apply any outstanding migrations. Integration tests truncate all tables upon start, but *not* at the end, so the state of the database can be inspected after integration tests. Had to refactor some of the controller's background tasks to make sure they get properly shut down on controller exit.
44 lines
4.1 KiB
Go
44 lines
4.1 KiB
Go
package ctl
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import (
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"github.com/featurebasedb/featurebase/v3/dax/server"
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"github.com/spf13/cobra"
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)
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// BuildDAXFlags attaches a set of flags to the command for a server instance.
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func BuildDAXFlags(cmd *cobra.Command, srv *server.Command) {
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flags := cmd.Flags()
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flags.StringVarP(&srv.Config.Bind, "bind", "b", srv.Config.Bind, "Default URI on which this service should listen.")
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flags.StringVar(&srv.Config.Advertise, "advertise", srv.Config.Advertise, "Address to advertise externally.")
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flags.BoolVar(&srv.Config.Verbose, "verbose", srv.Config.Verbose, "Enable verbose logging")
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flags.StringVar(&srv.Config.LogPath, "log-path", srv.Config.LogPath, "Log path")
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// Controller
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flags.BoolVar(&srv.Config.Controller.Run, "controller.run", srv.Config.Controller.Run, "Run the Controller service in process.")
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flags.DurationVar(&srv.Config.Controller.Config.RegistrationBatchTimeout, "controller.config.registration-batch-timeout", srv.Config.Controller.Config.RegistrationBatchTimeout, "Timeout for node registration batches.")
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flags.StringVar(&srv.Config.Controller.Config.DataDir, "controller.config.data-dir", srv.Config.Controller.Config.DataDir, "Controller directory to use in process.")
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flags.StringVar(&srv.Config.Controller.Config.StorageMethod, "controller.config.storage-method", srv.Config.Controller.Config.StorageMethod, "Backing store. boltdb or sqldb.")
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flags.DurationVar(&srv.Config.Controller.Config.SnappingTurtleTimeout, "controller.config.snapping-turtle-timeout", srv.Config.Controller.Config.SnappingTurtleTimeout, "Period for running automatic snapshotting routine.")
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// Controller.SQLDB
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.Database, "controller.config.sqldb.database", srv.Config.Controller.Config.SQLDB.Database, "Database name.")
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.Host, "controller.config.sqldb.host", srv.Config.Controller.Config.SQLDB.Host, "Hostname of SQL Database")
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.Port, "controller.config.sqldb.port", srv.Config.Controller.Config.SQLDB.Port, "Port of SQL Database")
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.User, "controller.config.sqldb.user", srv.Config.Controller.Config.SQLDB.User, "Username for connection to SQL Database")
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.Password, "controller.config.sqldb.password", srv.Config.Controller.Config.SQLDB.Password, "Password for connection to SQL Database")
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flags.StringVar(&srv.Config.Controller.Config.SQLDB.URL, "controller.config.sqldb.url", srv.Config.Controller.Config.SQLDB.URL, "URL for connection to SQL Database (supersedes host/port/username etc)")
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flags.IntVar(&srv.Config.Controller.Config.SQLDB.Pool, "controller.config.sqldb.pool", srv.Config.Controller.Config.SQLDB.Pool, "Max number of open connections to database. 0=unlimited")
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flags.IntVar(&srv.Config.Controller.Config.SQLDB.IdlePool, "controller.config.sqldb.idle-pool", srv.Config.Controller.Config.SQLDB.IdlePool, "Maximum number of idle connections to database.")
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flags.DurationVar(&srv.Config.Controller.Config.SQLDB.ConnMaxLifetime, "controller.config.sqldb.conn-max-lifetime", srv.Config.Controller.Config.SQLDB.ConnMaxLifetime, "See https://golang.org/pkg/database/sql/#DB.SetConnMaxLifetime")
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flags.DurationVar(&srv.Config.Controller.Config.SQLDB.ConnMaxIdleTime, "controller.config.sqldb.conn-max-idle-time", srv.Config.Controller.Config.SQLDB.ConnMaxIdleTime, "See https://golang.org/pkg/database/sql/#DB.SetConnMaxIdletime")
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// Queryer
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flags.BoolVar(&srv.Config.Queryer.Run, "queryer.run", srv.Config.Queryer.Run, "Run the Queryer service in process.")
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flags.StringVar(&srv.Config.Queryer.Config.ControllerAddress, "queryer.config.controller-address", srv.Config.Queryer.Config.ControllerAddress, "Address of remote Controller process.")
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// Computer
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flags.BoolVar(&srv.Config.Computer.Run, "computer.run", srv.Config.Computer.Run, "Run the Computer service in process.")
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flags.IntVar(&srv.Config.Computer.N, "computer.n", srv.Config.Computer.N, "The number of Computer services to run in process.")
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flags.AddFlagSet(serverFlagSet(&srv.Config.Computer.Config, "computer.config"))
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}
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