I am trying to access a coherence cache using .net client.The cluster is already set up , all I have to do is to access the coherence cache from the client side and get the objects from the cacheservice . As of now I have the coherence dll and the client config .what else should I do ?
You should check the 'Developing Remote Clients for Oracle Coherence' guide,
specifically client side configuration:
http://docs.oracle.com/middleware/1212/coherence/COHCG/gs_configextend.htm#BEBEGIAE
The link included in the other answer is a great start. Basically:
You run at least one "proxy" in the cluster
You configure the client to point to the proxy or proxies (or a load balancer in front of the proxies)
You use the Coherence C# API in .NET and it finds the configuration and connects to proxy
Related
I am using HA proxy version 1.6.6 for load balancing rabbitmq server, and it works fine but i want to add server dynamically in ha proxy backend in ubuntu using script. can anyone please tell me how can i done it?
HAProxy OSS v1.8 does not include add/remove commands in Runtime API, but you can achieve similar functionality by using ready/disabled state commands.
Add server(s) config in haproxy.cfg in disabled state: server-template websrv 1-100 192.168.122.1:8080 check disabled //This adds 100 servers (websrv1...websrv100) in disabled state
Enable server (similar to add feature): set server be_template/websrv1 state ready
Disable server (similar to remove feature): set server be_template/websrv1 state maint
Address and port can be changed using Runtime API as usual: set server be_template/websrv1 addr 192.168.50.112 port 8000
Reference(s):
https://www.haproxy.com/blog/dynamic-configuration-haproxy-runtime-api/
https://www.haproxy.com/blog/dynamic-scaling-for-microservices-with-runtime-api/
As far as I know haproxy api ( stats socket ) does not support dynamic adding/removing servers to backend.
One of the solution to use consul, the cost - reload service after some change.
https://www.hashicorp.com/blog/haproxy-with-consul.html
I think there is not this kind of features with HAProxy Open Source.
If you use their ALOHA Load Balancer, there is an API to do this actions here :
https://www.haproxy.com/resources/documentation/
I am in a stage of using SignalR in my project and i don't understand when to use Self hosted option and when we should not use. As a example if I am willing to host my web application in server farm,
There will be separate hosting servers
Separate SignalR hubs in each IIS server
If we want to broadcast message into each client, how this is working in SignalR
The idea with SignalR running in multiple instances is that clients connected on instance A cannot get messages from clients connected to instance B.
(SignalR scaleout documentation)
However, when you scale out, clients can get routed to different
servers. A client that is connected to one server will not receive
messages sent from another server.
The solution to this is using a backplane - everytime a server recieves a message, it forwards it to all other servers. You can do this using Azure Service Bus, Redis or SQL.
The way I see, you use the self host option when you either don't want the full IIS running (because you have some lightweight operations that don't require all IIS heaviness) or you don't want a web server at all (for example you want to add real-time functionality to an already existing let's say forms application, or in any other process).
Be sure to read the documentation for self-hosting SignalR and decide whether you actually need to self host SignalR.
If you are developing a web application under IIS, I don't see any reason why you would want to self-host SignalR.
Hope this helps. Best of luck!
I'm just starting with Kettle (PDI).
I want to know if it is possible to deploy EJB3 in JBoss AS 5.1.0, and then invoke EJBs from a remote client through KETTLE by using the JNDI API to first lookup the bean proxy and then invoke on that proxy?
Basically, I want to extract, transform and load data that was deployed to the application server through Kettle.
Thanks
Generally speaking you'd like to implement a normal stand-alone remote EJB client. This client is to be integrated into an (open source) ETL tool.
I would be very surprised if this does not work. If you managed to have a stand-alone remote client (sometimes tough enough), there could be one problem: Conflicting libraries: Normally a JBoss clients use jboss-client.jar, and its content may conflict with libraries provided by Kettle. But Kettle is open source, so with a little effort you could resolve this as well.
I am working on creating component using the Core Service to connect to Tridion 2011 SP1. I wrote the code in the server machine to create a component through the Core Service, and it worked well. The code was executed from server machine.
Now I want to execute same code from client machine.
I came to know that we can execute the code from Client machine as well.
Can any one share what all the configuration that I need to do in the client machine to make it work?
CoreService is a WCF webservice and as with any webservice there's no any difference as to where you connect to it from, provided you can connect and authenticate. All you need to do is to change app.config of your client to point to proper server, or change it in the code if you have it hardcoded. Also, you might need to add authentication to your client code in case you don't want to use default credentials.
In general, CoreService is following WCF and if you are having any problems with it - you can troubleshoot it as any other WCF service. There are plenty of answers on the internet.
Have a look at this: http://yatb.mitza.net/2012/03/core-service-client-sample-code.html
It describes several ways of connecting to the Core Service.
I have an LCDS server sitting behind a corporate proxy/firewall.
I need to use a configured HTTPProxyService on the LCDS server to make requests out to beyond the firewall (can't go directly from the client because of crossdomain.xml issues)
How do I configure LCDS to use the corporate proxy on it's outbound requests?
Docs ftw:
http://livedocs.adobe.com/livecycle/es/sdkHelp/programmer/lcds/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=rpc_config_4.html
Use the <external-proxy /> tag.
LCDS is using Apache HTTP client in order to establish a connection through an external proxy. All the parameters from the tag are going to be used in order to initialize an org.apache.commons.httpclient.UsernamePasswordCredentials instance (or NTCredentials).
I think that first it's easier if you build a standalone java application using HTTP client to use your corporate proxy (easier from a testing point of view), and after you succeed to find all the settings you can add them into proxy-service.xml (I can help you with that).