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Einführung

ROBUST steht für die neu gestaltete OpenSimulator Basic Universal Server Technology (ROBUST). Es nutzt das System von Ein- und Ausgangskonnektoren und -diensten, das für Hypergrid und OpenSimulator entwickelt wurde. Es ersetzt OGS1 durch eine modulare Architektur, die einfach mit Core- und 3rd-Party-Modulen erweitert werden kann.

ROBUST ist eine flexible Server-Shell, die dieselben Module laden kann, die bereits von Regionen verwendet werden. Dies ermöglicht eine fast 100-prozentige Wiederverwendbarkeit des Codes und eine große Flexibilität.

Der ROBUST-Server lädt "in"-Konnektoren wie in der Konfigurationsdatei angegeben. Diese Konnektoren laden dann die erforderlichen Verarbeitungs- und Speichermodule und/oder "Ausgangs"-Konnektoren. Durch diese Architektur kann jeder ROBUST-Server beliebige oder alle Grid-Dienste ausführen und/oder als Proxy für Grid-Dienste fungieren.

Auf dieser Seite geht es um Nutzung und Konfiguration von ROBUST. Es gibt separate Seiten, auf denen Sie mehr über die services selbst erfahren können.

Konfiguration

Der Server liest beim Start eine Konfigurationsdatei, die standardmäßig den Namen der Assembly mit angehängter INI-Datei enthält. Der Standardname für den ROBUST-Server ist Robust.exe, daher ist die Standardkonfigurationsdatei Robust.ini. Eine Robust.ini.example-Datei wird mit dem OpenSimulator-Kit bereitgestellt. Der Standardport für alle Dienste, die in ROBUST ausgeführt werden, ist 8003, wie Sie unten sehen können.

; * The startup section lists all the connectors to start up in this server
; * instance. This may be only one, or it may be the entire server suite.
; * Multiple connectors should be seaprated by commas.
; *
; * These are the IN connectors the server uses, the in connectors
; * read this config file and load the needed OUT and database connectors
; *
[Startup]
ServiceConnectors = "OpenSim.Server.Handlers.dll:AssetServiceConnector,OpenSim.Server.Handlers.dll:InventoryServiceInConnector"   

; * This is common for all services, it's the network setup for the entire
; * server instance
; *
[Network]
port = 8003

; * As an example, the below configuration precisely mimicks the legacy
; * asset server. It is read by the asset IN connector (defined above)
; * and it then loads the OUT connector (a local database module). That,
; * in turn, reads the asset loader and database connection information
; *
[AssetService]
LocalServiceModule = "OpenSim.Services.AssetService.dll:AssetService"
DefaultAssetLoader = "OpenSim.Framework.AssetLoader.Filesystem.dll"
AssetLoaderArgs = "assets/AssetSets.xml"
StorageProvider = "OpenSim.Data.MySQL.dll"
ConnectionString = "Data Source=localhost;Database=grid;User ID=grid;Password=grid;"

; * This configuration loads the inventory server modules. It duplicates
; * the function of the legacy inventory server
; *
[InventoryService]
LocalServiceModule = "OpenSim.Services.InventoryService.dll:InventoryService"
UserServerURI = "http://127.0.0.1:8002"
SessionAuthentication = "false"
StorageProvider = "OpenSim.Data.MySQL.dll"
ConnectionString = "Data Source=localhost;Database=grid;User ID=grid;Password=grid;"

Kommandozeilenargumente

• -inifile

Geben Sie anstelle des Standardspeicherorts den Speicherort der zu lesenden .ini-Datei an

• -console

Geben Sie den Konsolentyp an, entweder Basic, Local oder Rest

• -logconfig

Weisen Sie log4net an, diese Datei als Konfigurationsdatei zu verwenden

• -prompt

Überschreiben Sie die Server-Eingabeaufforderung

Konfigurationsdatei

Abschnitt [Startup]

• ServiceConnectors

Durch Kommas getrennte Liste von Dienst-IN-Anschlüssen. Das Format jedes Eintrags ist <dllname>:<classname>. Wenn eine DLL nur eine passende Klasse enthält, kann der Klassenname weggelassen werden.

• Prompt

Überschreiben Sie die Server-Eingabeaufforderung

• Console

Geben Sie den Konsolentyp an, entweder Basic, Local oder Rest

• Logfile

Geben Sie die Protokolldatei an, in der sich dieser Server anmeldet

Abschnitt [Network]

• Port

Stellen Sie den zu überwachenden Netzwerkport ein. Alle Dienste werden auf diesem Port ausgeführt.

Connector Konfigurationen

Diese Konfigurationen werden von den Anschlussmodulen bereitgestellt und sind kein integraler Bestandteil des ROBUST-Servers. Dokumentation zu allen möglichen Optionen finden Sie in der Dokumentation des Connectors. Dieses Handbuch listet nur die Optionen auf, die in der Beispielkonfigurationsdatei vorhanden sind.

Abschnitt [AssetService]

• LocalServiceModule [Connector option]

Eine Modulspezifikation (<dll>:<class>), die die Dienste für diesen Connector bereitstellt

• DefaultAssetLoader [Service option]

Eine DLL, die das Asset Ladeprogramm enthält, das zum Laden des Standard Asset Sets verwendet werden soll

• AssetLoaderArgs [Service option]

Pfad zum Laden von Assets (für das Dateisystem-Asset-Loader)

• StorageProvider [Service option]

Dll, die den Code des Datenbankanbieters enthält

• ConnectionString [Service option]

An den Datenbankanbieter zu übergebende Verbindungszeichenfolge

Abschnitt [InventoryService]

• LocalServiceModule [Connector option]

Eine Modulspezifikation (<dll>:<class>), die die Dienste für diesen Connector bereitstellt

• UserServerURI [Connector option]

URI, um den Benutzerserver zu erreichen

• SessionAuthentication [Connector option]

Inventarisierungssitzungen authentifizieren (standardmäßig false!)

• StorageProvider [Service option]

Dll, die den Code des Datenbankanbieters enthält

• ConnectionString [Service option]

An den Datenbankanbieter zu übergebende Verbindungszeichenfolge

Für zusätzliche Anschlüsse müssen möglicherweise zusätzliche Abschnitte hinzugefügt werden.

An Example Conversion From UGAIM To UGRM

This section will apply if you're migrating an existing OpenSimulator 0.6.6 installation to OpenSimulator 0.6.7. In this version, the name of the ROBUST server is OpenSim.Server.exe.

Converting from UGAIM to UGRM:

Kudos to diva and Melanie_t for helping and tolerating me (smxy).

My initial setup:

Full HG-enabled, Internet-accessible, Grid Mode system, using MySQL and split over two servers.

UGAIM and MySQL 5.0 run in two separate 32-bit CentOS 5.3 Xen VMs on a 64-bit CentOS 5.3 system.
Each region runs in its own instance of OpenSim.exe on a 32-bit Windows XP SP3 Home system.
OSWI runs on the Windows system too.

Bring down the regions. Bring down UGAIM.

Then, the port for the inventory server needs to be changed from 8004 to 8003 in

OpenSim.ini:           "inventory_server_url"          - For all regions and the UGRM server.

GridCommon.ini:        "InventoryServerURI"            - For all regions and the UGRM server.

UserServer_Config.xml: "default_inventory_server"      - For the UGRM server.

In the MySQL database, in the "users" table, the userInventoryURI field needs to be updated for all users.

In OSWI's config file, update "$userInventoryURI".

AssetServer_Config.xml and InventoryServer_Config.xml can be deleted from the UGRM server.

On the UGRM server, copy OpenSim.Server.ini.example to OpenSim.Server.ini and edit it, changing the "ConnectionString" entries appropriately, in the [AssetService] and [InventoryService] sections.

Bring up UGRM. Bring up regions.

Semi-unrelated Note: According to Melanie_t, any of the UGRM servers can be restarted independently, without needing to restart the other three. However, if you restart the UserServer, you must issue the command "register" (without the quotes) at the MessagingServer console, afterwards.

An Example Conversion From UGRM To URM

This section will only apply if you're migrating from OpenSimulator 0.6.7 to 0.6.8. In this version, the name of the ROBUST server is OpenSim.Server.exe.

Converting from UGRM to URM:

This is a continuation of my "UGAIM to UGRM" example above. I may merge the two examples, eventually.

Bring down the regions. Bring down UGRM.

Make sure that you don't override any of these files - they should be used as they come out of the repository:

 config-include/Grid.ini
 config-include/GridHypergrid.ini
 config-include/Standalone.ini
 config-include/StandalioneHypergrid.ini

Also make sure that you include new additions in config-include/*Common.ini.example into your config-include/*Common.ini

Then, the port for the grid server needs to be changed from 8001 to 8003 in

UserServer_Config.xml:      "default_grid_server"     - For the URM server.

MessagingServer_Config.xml: "default_grid_server"     - For the URM server.

On the URM server, save a copy of your existing OpenSim.Server.ini. Copy OpenSim.Server.ini.example to OpenSim.Server.ini. Edit it to reflect any changes you made in the previous version. Then edit the "ConnectionString" entry, appropriately, in the [GridService] section.

GridServer_Config.xml can be deleted from the URM server.

Bring up URM. Bring up regions.

An Example Conversion From URM To ROBUST

This section will only apply if you're migrating to the very latest Git master OpenSimulator code (since commit a9580eb on Tue Mar 2nd 2010)

Starting in the presence-refactor branch, the default configuration is one single server running ALL resource services, plus whatever number of simulators you have.

Bring down the regions. Bring down URM.

Make sure that you don't override any of these files - they should be used as they come out of the repository:

 config-include/Grid.ini
 config-include/GridHypergrid.ini
 config-include/Standalone.ini
 config-include/StandalioneHypergrid.ini

Also make sure that you include new additions in config-include/GridCommon.ini.example into your config-include/GridCommon.ini

On the ROBUST server, copy Robust.ini.example to Robust.ini. Edit it to reflect your setup. In particular edit the "ConnectionString" entry, appropriately. Also notice new configuration variables in the [GridService] section, where you can now define default and fallback regions for your grid.

If you want your grid to support the Hypergrid functionality -- both letting your users go out and letting outside users come in -- use Robust.ini.HG.example as the basis of your setup instead of Robust.ini.example. Copy it to Robust.ini, and make the changes there.

All *_Config.xml files are now obsolete and can be removed.

Start your services:

$ [mono] Robust.exe

Note that the default configuration starts 2 processes, one listening in port 8002 and the other listening in 8003. We have placed the services that need to be exposed to the internet in port 8002; all services that don't need to be exposed are in port 8003. To secure your grid you can now put port 8003 behind your firewall. Unless you know what you are doing, leave the port numbers exactly as they come out of the package; change only the host names everywhere they need to be changed.

Tips

If you're using MySQL in a standalone, you might see an error like this when you first start OpenSimulator after updating.

18:27:39 - [SERVICE BASE]: Failed to load plugin OpenSim.Data.IFriendsData from OpenSim.Data.MySQL.dll with args URI=file:friends.db,version=3, FriendsSystem.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: Keyword not supported. Parameter name: uri

...

18:27:39 - Error loading plugin from OpenSim.Services.FriendsService.dll, exception System.Exception: Could not find a storage interface IFriendsData in the given StorageProvider OpenSim.Data.MySQL.dll

This is because the new StorageProvider parameters in config-include/Standalone.ini are all for SQLite. If you comment these out then things should work again.

Moving any service to its own ROBUST shell

This section contains advanced material. Normally you can ignore this.

If you have a large grid, you may want to run different sets of services in their own ROBUST shell in separate machines, instead of all in one. For example, you may want to single out the Login Service with all the other outside-the-firewall services in its own machine; the Grid Service in its own machine; the Asset Service in its own machine; etc. With ROBUST any service, or any combination of services, can be easily grouped into their own ROBUST shells. If so, do this:

• Copy Robust.ini.example to your own copy in each machine you want to run of these servers.
• Edit each. Pay attention to all the server connectors that are given in the [Startup] section. Pick & choose whichever you want in that particular machine.
• In each configuration section you now need to pay attention to the auxiliary service connectors, and, maybe, change them appropriately. For example, the Login Service needs to access the Inventory Service in order to get the user's inventory upon login. In the default configuration, that dependency is given under the [LoginService] section by the variable

InventoryService = "OpenSim.Services.InventoryService.dll:InventoryService"

If you separate the login service from the inventory service, the corresponding 'InventoryService' variable under [LoginService] should be changed to

   InventoryService = "OpenSim.Services.Connectors.dll:InventoryServicesConnector"

Then in the [InventoryService] section of this Login server config, you'd have

 [InventoryService]
   InventoryServerURI = "http://myinventoryserver.com:myport"

instead of what you have by default.

• Save the configuration and start the server as normal
• Note that you can start the server like this:

$ Robust.exe -inifile=OpenSim.MyServer.ini -logfile=/some/path/to/some/file

• Start all other ROBUST servers you may want to have
• In your simulators, make sure to update GridCommon.ini to point to the correct URLs
• Start your sims

Additional Examples

WxService - An example ROBUST service