Command Line options

Command-line options are key=value parameters passed to the DataJet Server when the server starts. They are normally set in the start-up script (see Starting the DataJet Server) and control; file locations, network ports, the database connection, and engine tuning.

These start-up parameters are distinct from the runtime Command Line console, which adjusts a running server interactively.

Parameters take the form key=value, separated by spaces.

Example start-up file

A typical start-up batch file changes into the binaries folder, launches the server with the required parameters, and pauses so the console stays open:

cd bin
DatajetServer.exe path=f:\datajet\ bin=f:\datajet\bin\ porta=5555 portb=5556 shareddatapath=\\fileserver\DJSharedData\sources datapath=f:\datajet\datasources\ mongoURL=127.0.0.1 mongoPort=27017 rms=48
pause

cd bin and pause are part of the batch script, not server parameters — pause simply holds the window open after the server stops.

Where a parameter also exists as a Server Configuration File key, the value in djserver.cnfg takes precedence.

File and data locations

Parameter	Description
path	Root DataJet installation folder.
bin	Folder containing the server binaries.
datapath	Local data source location.
shareddatapath	Shared project data location.
systemoutput	Team output location — output files such as data exports, accessible to all users. Defaults to a sub-folder of the realm repository.
useroutput	User output location — per-user generated output such as data exports; each user sees only their own folder. Defaults to a sub-folder of the team output folder.
templatepath	Shared template location. Created automatically if it does not exist.
inipath	Folder containing `djserver.cnfg` and `djclient.cnfg` (see Server Configuration File).

Network and database

Parameter	Config-file key	Default	Description
porta	localPort	5555	Port for client/desktop connections.
portb	corePort	5556	Port for the core processor.
mongourl	mongoURL	127.0.0.1	MongoDB host.
mongoport	mongoPort	27017	MongoDB port.
IP	IP	0.0.0.0	Address the server binds to.

Engine tuning

Parameter	Config-file key	Default	Description
rms	rms	32	Requestable Memory Size in GB; freely settable (the example uses 48). See Command Line → rms.
pool	processPoolSize	8	Worker processes in the processing pool. Clamped to 4–32.
cache	coreCache	256	Core cache size.
ilgb	coreLGb	32	Core memory budget in GB. Clamped to 8–128.
fragments	fragments	4000	Clamped to 500–8000.
psize	—	—

Logging and advanced