I am trying to check the HTTP network map protocol in the sample cordapp example, I have used network bootstrapper to generate node info files. But I need to check the Rest API end points mentioned in the docs: /network-map/publish.
Is it necessary to set up the network map for this? If required,I am not able to get the corda-network map jar file for the community edition. How to access those API endpoints ?
The cordapp samples available in the samples repository uses a locally bootstrapped network. The network bootstrapper is used for this purpose to generate the node-info and the certificates of the network participants. It's a quick and easy way to set up a static Corda network for the purpose of local deployment and testing.
It doesn't have a network map service. The node-info files of each participant is dropped into the additional-node-info folder of the nodes which serves as the network map cache for the node.
The REST end-points you mentioned are available in a real network map service running as part of a dynamic Corda network setup (mostly) used for production deployments.
R3 does not provide a community version of the network map.
However, there is a commercial offering called CENM (https://docs.corda.net/docs/cenm/1.2.html). It's not just a Network Map but also takes care of other aspects of Network Management like Identity and Signing.
In case you are looking for an open-source network map you could try out Cordite Network Map (https://marketplace.r3.com/solutions/cordite-network-map) developed by one of our partners.
Related
While building a Corda network with multiple nodes and parties, how is the certificate renewal managed? Once a new certificate is issued to a node/party, how does that affect the earlier transactions and any ongoing transactions?
What you're asking about depends on the TYPE of corda network right?
So for example:
A bootstrapped network is "hard coded" from the beginning, meaning the certs and network map are all generated by the network bootstrappeer (https://docs.corda.net/docs/corda-os/4.7/network-bootstrapper.html) This is also what's normally used when running the gradle deployNodes task.
A production network usually has a network manager that handles most of the tooling here. That means that your nodes would just connect to the network manager and so you're not going to be as worried. You may need to generate a couple of certs at the beginning but after that you're good. For a good example take a look at this example of kubernetes where the certs are generated on corda firewall: https://github.com/corda/corda-kubernetes-deployment/tree/master/corda-pki-generator
I have been try to setup the network map. Where can we get the network-map.jar to run the standalone network mapper for community edition.
Or Network map only comes with enterprise version.
Thanks
There is no community version of the network map provided by R3.
However, as Sneha mentioned there is a commercial offering called CENM (https://docs.corda.net/docs/cenm/1.2.html). It's not just a Network Map but also takes care of other aspects of Network Management like Identity and Signing.
In case you are looking for an open-source network map you could try out Cordite Network Map
(https://marketplace.r3.com/solutions/cordite-network-map) developed by one of our partners.
in open source version, network maps functionality is handled by adding the node-info files to each node's additional-node-infos folder.
If you want to run a stand-alone network map, one option is to use CENM - Corda Enterprise Network Manager. With CENM you get access to the pki-tool, identity manager and network map jars which helps you to set up a private network.
https://docs.corda.net/docs/cenm/1.1/network-map.html
Apart from that if you wish to experiment with a standalone network map, you could also try out a stand-alone network map built by one of our engineers. Pasting the link below
https://github.com/roastario/spring-boot-network-map
I followed the documentation from docs.corda.net to setup 3 node dev corda network on a single machine.
My goal is to setup multinode production level corda network that involves multiple physical machines. Can someone please help me how can I achieve this?
I want to learn about the corda network capabilities, its different configuration modes etc etc.
I've already setup 3 node dev corda network on a single machine
There are two approaches with which you can achieve the above
Using the network bootstrapper , refer : https://docs.corda.net/network-bootstrapper.html
Using the Network Map Service
For a production level it is preferable to use the network map service as you can manage the nodes dynamically. This is not possible with the networkbootstrapper as the nodes informations are shared within the nodes during the boostrapping which cannot be changed
For NetworkMap Service you can refer Cordite NetwokMapService.
I m referring Can corda nodes communicate when run from different networks?
I am looking at 3.3 opensource cordapp example and could see the certificates are generated automatically while deployment with devmode=true.
Can I get information - whether it is configured with network type as business network or compatibility zone ?
Can I get more information on how to configure as a business network? is there any example?
If you use deployNodes to create your nodes, you create a mini-compatibility zone of nodes running in devMode. Unlike a traditional compatibility zone, you need to use the Network Bootstrapper tool to manually add nodes to the network, rather than using the dyanmic joining process available in a compatibility zone with a central network map service.
A business network is a sub-group within a compatibility zone of nodes operating for a specific business purpose. A node can be part of multiple business networks. You can read more about business networks here: https://solutions.corda.net/business-networks/what-is-a-business-network.html.
In my scenario, Transaction is between two nodes in two different Machines. Currently am using a controller in Machine A which acts as a notary as well. Can i use two controllers one in each machine?
As discussed here: Corda Controller Node, Corda has no concept of a "controller" node.
Up until Corda 2, each network had a single network map node, no matter how many machines were involved. Each node's configuration file would point to this network map node, using its IP address and port number.
In Corda 3, the network map node was replaced with a server distributing network map files. Details about how to deploy a network across machines in Corda 3 can be found here: https://docs.corda.net/tutorial-cordapp.html#running-nodes-across-machines.
yes, you can setup your case. NotaryChangeFlow (initiating), which should be used to change a state’s notary.