StarAdmin CLI

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StarAdmin CLI
Introduction
With staradmin.exe, users can interact with Starcounter from the command-line, running different management tasks. These tasks include stopping of running applications, killing Starcounter processes, unloading and reloading databases, and more.
Basic Use
Running staradmin without arguments will display the usage message in the console. The general syntax of the staradmin tool is:
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staradmin [options] command [<command options>] [<parameters>]
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The options section include options that apply either to the program itself or to the majority of the commands. Options are specified using a -- prefix and include both flags and properties. As an example, the --help flag tells staradmin to write out the usage message, while the --database=<name> property allow a user to specify a specific database the upcoming command is to target. Shorthand -d=<name> has the same effect.
The command tells staradmin what is to be done. Commands are usually verbs. Common commands include stop, list and help.
Some commands support command options. As their name implies, these options are optional and specific for the given command. As an example, the list command support the max=<n> property, allowing the user to limit the set of entries in a displayed list to the value <n>.
Finally, most commands will require or at least support some command parameters. The parameter will usually describe a type of object the command should operate on; examples include stop app <name> and help list. The first one instruct staradmin to stop an application by name; the second that it should display help on the list command.
Getting Help
To see the latest help overview, run staradmin --help.
To find extended help on a certain command or a known topic, issue staradmin help <command|topic>, for example staradmin help stop to see the help for the stop command.
Console Command
The console command shows the console output from applications
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staradmin console [<databases>]
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Running staradmin console without parameters shows the console output from the default database.
Running staradmin -d=foo console shows console output from the "foo" database.
Provide a space-separated list of database names as command parameters to show output from multiple databases. For example, staradmin console foo shows console output from the "foo" database. staradmin console foo bar baz shows console output from the "foo", "bar" and "baz" databases.
Delete Command
The delete command deletes various types of objects, e.g. databases. Usage:
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staradmin delete [--force] [--failmissing]
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Example: delete database 
To create a user-specified database use
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C:\>staradmin --database=NewDbName delete db
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Command Options
The delete command supports the --force flag. This flag tell staradmin you don't want to confirm the requested delete, which otherwise is the default in case you are deleting some sensitive artifact such as a database. Use this flag with care, there is no going back.
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staradmin -d=foo delete --force db
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The --failmissing flag toogle how staradmin behaves when the artifact you want to delete is not found. By default, such case is treated as a successful operation. With this flag applied, staradmin will instead issue an error.
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staradmin -d=nonExisting delete --failmissing db
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ScErrDatabaseNotFound (SCERR10002): ScErrDatabaseNotFound (SCERR10002):
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A database with the specified name was not found.
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Object Types
The delete command supports the following type of objects to be deleted.
Databases. Usage: staradmin -d=default delete db. Deletes a database.
Kill Command
The kill command kills processes relating to Starcounter. Usage:
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staradmin kill <target>
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Use all as the command parameter to target killing all processes relating to Starcounter on the current machine. Use this option with care and make sure no mission-critical processes are running.
List Command
The list command provides viewing of lists. It takes the general form:
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staradmin list <type>
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where type will indicate the kind of list you want to see. To see a list of databases, use the db type; to see a list of all running applications, use app.
Command Options
The list command supports the max=<n> property. By using this property, you tell staradmin not to list more entries than the value of <n>.
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staradmin list --max=10 app
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Lists running applications, limiting the result to a maximum of 10
Object Types
The list command supports the following type of objects to be listed.
Databases. Usage:  staradmin list db. List all databases part of the current installation, even those that are not running.
Applications. Usage:  staradmin list apps. List all applications currently running, including information on the database they are running in.
Logs. Usage:  staradmin list log. Shows the content of the server error log. See more usage on the Error log page.
New Command
The new command allows creation of new artifacts. It takes the general form:
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staradmin new <type>
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where type specifies the kind of artifact to create. To create a database, use the db type; for applications, use app.
Example: create database
To create a user-specified database use
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C:\>staradmin new db foo
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Object Types
The new command allow the following type of artifacts to be created:
Databases. Usage:  staradmin new db foo. Creates a new database named "foo".
Applications. Usage:  staradmin new app. Creates a new application source code file, normally "app.cs".
Set Configuration Options on Creation
All the available configuration options in the underlying REST JSON representation can be set from the command line. These are:
Uri
DataDirectory
TempDirectory
DefaultUserHttpPort
FirstObjectID
LastObjectID
The options are specified on the creation of the database using this syntax:
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staradmin new db DataDirectory=C:\Users\Per\Foo DefaultUserHttpPort=1234 Uri=http://example.com/api/databases/foo/configuration"
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Reload Command
The reload command reloads data into a data source, usually a database. Usage:
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staradmin reload [source] [--file=<path>]
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If no source is given, db is used as the default.
Object Types
Databases. Usage: staradmin reload db. Reloads a database.
Command Options
The reload command supports the --file=<path> option. The filename is resolved to the same directory from which the command runs. If the file option is omitted, the default file is used.
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staradmin -d=bar reload db --file=data.sql
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Reloads the "data.sql" file into the "bar" database.
Start Command
The start command is used to start processes. It takes the general form:
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staradmin start <type>
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where type specifies what should be started. Use  staradmin start db to start the default database; use staradmin start server to start the Starcounter server.
Example: start database
To start a user-specified database use
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C:\>staradmin --database=UserDbName start db
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To start the application with .exe extension on a specified database use:
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C:\[path to your application]>star --database=newdb YourApplicationName.exe
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To find out more about how to start and stop applications read this article.
The console output does not go to the console, but directed to a server side memory buffer and it is possible to view it from the Administrator Web UI.
NOTE: Starting databases or the server like this is not the normal scenario. Instead, Starcounter employs a design where processes are started on demand. When starting applications, using star <app> or from within Visual Studio, doing "Start" on a Starcounter Application project, these processes are started for you automatically (if not already running).
Starting the "foo" database
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staradmin -d=foo start db
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Starting foo (started, code host PID: 6048)
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Object Types
The start command support starting the following types.
Databases. Usage:  staradmin start db. Starting the default database, including all its support processes.
The server. Usage: staradmin start server. Starts the Starcounter server.
Stop Command
The stop command is used to stop running processes or applications. It takes the general form:
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staradmin stop <type> [reference]
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where type will indicate the type of the given reference. As an example, to stop an application with the name foo, use staradmin stop app foo. To stop a database named bar, use staradmin -d=bar stop db. To stop the default database, use staradmin stop db.
Example: stop database
To start a user-specified database use
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C:\>staradmin --database=UserDbName stop db
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Object Types
The stop command supports stopping the following types.
Databases. Usage:  staradmin stop db. Stops the default database, including all its support processes, effectively freeing all database memory.
Applications. Usage:  staradmin stop app [name]. Stops an application by name. The -d option can be used to tell staradmin in what database look for it; if not given, the default database is assumed.
Hosts. Usage:  staradmin stop host. Stops the code host of the default database. Support processes stay resident, meaning that database memory is not freed.
Unload Command
The unload command unloads data from a data source, usually a database. Usage:
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staradmin unload [source] [--file=<path>]
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If no source is given, db is used as the default.
Object types
Databases. Usage: staradmin unload db. Unloads a database.
Command Options
The unload command supports the --file=<path> option. The filename is resolved to the same directory from which the command runs. If the file option is omitted, the default file is used.
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staradmin -d=bar unload db --file=data.sql
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Unloads the "bar" database into the "data.sql" file.
The --allowPartial option unloads the database, allowing the unload to be partial. Usage: staradmin unload db --allowPartial.
The --shiftKey option makes every key being unloaded increase with the given number.
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staradmin unload db --shiftKey=99999
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Makes every key being unloaded increase by 99999.
Exceptions
ScErrHandlerAlreadyRegistered (SCERR13003)
This exception is thrown when two identical handlers are registered on the same port. A common way to hit this is by running two databases where both ports are set to 8080, which is the default port. In its simplest form, it looks like this:
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> staradmin new db default
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Created (Name=default)                                                                                                  > staradmin new db another
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Created (Name=another)                                                                                                  > staradmin start db default
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Starting default (started, code host PID: 9300)                                                                         > staradmin start db another
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System.Exception: ScErrHandlerAlreadyRegistered (SCERR13003): This handler has already been registered. Can't register URI handler "GET /sc/htmlmerger?{?}" on port 8080. This handler is already registered.
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The solution is to start the databases on different ports:
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> staradmin new db default
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Created (Name=default)                                                                                                  > staradmin new db another DefaultUserHttpPort=5000
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Created (Name=another)   
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