workbase | Grakn Workbase | Graph Database library
kandi X-RAY | workbase Summary
kandi X-RAY | workbase Summary
Grakn Workbase is Grakn's Integrated Development Environment to perform knowledge engineering. At the moment, Workbase provides two main functionalities: visualisation of the knowledge graph, and modelling of the knowledge schema. You can also see Workbase as another interface for a user to interact with their Grakn database, as an alternative to the Grakn Console and Grakn Client API/Drivers. Workbase Visualiser allows you to visualise data in the Grakn knowledge graph, and investigate their relations, by performing read queries (match-get queries) as well as one of the computer queries: compute path queries. Whether you need a tool to test and experiment with your newly created Grakn knowledge graph, or that you prefer a graphical interface for reading data from Grakn, you will find Workbase extremely useful.
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Trending Discussions on workbase
QUESTION
If I have an existing keyspace in Grakn, how can I easily clone the keyspace to create a copy in the instance?
In the db > cassandra > data
folder I can see a list of folders of my keyspaces. I have already created a copy of one keyspace, but this doesn't show up in Workbase.
ANSWER
Answered 2020-Sep-02 at 11:06Grakn 1.8 adds "the ability to export and import date and schema to 1.8 grakn in order to support migration into newer versions of grakn." Grakn release 1.8.1
Hence to copy an entire keyspace you can:
- Start the grakn server:
grakn server start
- Create a new empty keyspace using the same schema as the original:
grakn console -k --f
- Export data from the original keyspace:
grakn server export exported_data.grakn
- Import the data into the new keyspace:
grakn server import exported_data.grakn
QUESTION
There are the following parameters: I use the FirebirdSql.Data.FirebirdClient library in asp .net Now, at the test level, I connect to the remote database using the line:
...ANSWER
Answered 2020-Aug-05 at 14:31If 'public ip' is a publicly routed IP address, and port 3050 is open to the whole world, that is not safe. Don't expose your database server to the world, it will create a very wide attack surface to get at your data.
For example, Firebird 2.5 and earlier have a very weak authentication system (max 8 character passwords), and while Firebird 3 introduces a new, more secure authentication mechanism that allows much longer passwords, for various reasons, a lot of servers are still configured with the weak authentication (also) enabled. Also consider bugs that might allow people to circumvent authentication, or that could allow people to remotely crash your database server, etc.
As to encryption, Firebird 2.5 and earlier have no encryption of the connection. This was introduced in Firebird 3, and only for connections authenticating with the new SRP (Secure Remote Password) authentication mechanism, and only if the WireCrypt
setting of the server is Required
or Enabled
and the client actually requests authentication. For C#, this requires Firebird ADO.net provider version 7.0.0.0 or higher. However, the wire protocol encryption offered in Firebird 3 is the relatively insecure RC4 encryption; Firebird 4 will introduce ChaCha-20 as an alternative wire protocol encryption.
So, your database should be on the same network as your application, preferably on an IP address that is not routable over the internet (ie in one of the private ranges), or at least shielded from the internet by a firewall. If for some reason you need to connect to a remote database over the internet, do not expose the database directly to the internet, but use a VPN solution, or maybe something like an SSH-based tunnel.
And as corradolab points out in their answer, don't use masterkey
as a password for SYSDBA. In fact, don't use SYSDBA for your application to connect, but create a specific user and assign it the necessary but minimal rights for it to do its work.
QUESTION
There is an option to start a GRAKN console with a file:
...ANSWER
Answered 2020-Aug-22 at 16:31I've found creating separate scripts that hold common operations is a good workflow for me. For example, if you have a common schema shared between different keyspaces and different data for those make a schema.gql file and your multiple data.gql files. They can then be glued together with a shell script if typing that in gets tedious.
QUESTION
I don't have a tech background. I installed grakn locally on windows into a folder, I am able to start the server and use the workbase, however when I tried to do the compute query in the documentation tutorial (social_network), it throws an error:
2020-08-18 16:59:33,614 [transaction-listener] ERROR g.c.s.r.SessionService$TransactionListener - Runtime Exception in RPC TransactionListener: java.lang.IllegalArgumentException: System memory 259522560 must be at least 471859200. Please increase heap size using the --driver-memory option or spark.driver.memory in Spark configuration.
I then set env variables:
...ANSWER
Answered 2020-Aug-19 at 17:09There are two possible reasons for this:
- JVM is unable to allocate 4G of RAM because it's occupied by something else. However, as you've said only 20% or RAM is used, this is an unlikely reason.
- 32-bit JVM are unable to address more than 4GB of RAM 1, so you should check if it applies to you and reinstall your JVM to be 64-bit if it does.
QUESTION
I am running Grakn Workbase on my Mac.
I created a schema and also accessed it using a console.
I try to visualize it using Grakn Workbase.
I open the application (version 1.2.7) and I click to select the keyspace.
I get the following message: "The transaction was refreshed, and as a result, the explanation of the currently displayed inferred nodes may be incomplete."
The logs says the following:
...ANSWER
Answered 2020-Apr-25 at 23:22Workbase 1.2.7 isn't compatible with Grakn version 1.7.0 (there will be a new release soon). Please check if Workbase works if you use Grakn 1.6.2 instead!
QUESTION
What if I have classes that are different only by some constant used in code. Is it possible to have one generic implementation without runtime cost?
Here is the example (it's a little bit too long...)
...ANSWER
Answered 2018-Oct-11 at 18:06The closest thing I know is const-type-parameter. But I do not feel generic build is a good choice here.
Const type parameters can be used without @:genericBuild
- a const type parameter in combination with @:generic
is enough to get the desired optimization:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install workbase
Note: You don't need to build Workbase from source if you just want to use it. See the "Download Grakn Workbase" section above. To run Grakn Workbase in development mode, run yarn dev. To run the unit, integration and end-to-end tests, run yarn unit, yarn integration and yarn e2e respectively.
Make sure you have the following dependencies installed on your machine:
npm >= 6.4.1
node >= 10.0
yarn >= 1.17
Run yarn install
Run yarn build Outputs to build/grakn-workbase-{version}-{mac|linux|windows}.{dmg|tar.gz|exe}.
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