Communication between servers on different FIs

Just want to verify communication between UCS servers on same chassis but having active vNICs on different FIs (Diagram attached). I suppose all commuication between server-A & server-B will happen through Layer 2 switch as server-A will generate an ARP request for Server-B, that will be passed over to FI-A and then to L2 switch down to FI-B, where server-B will respond back with it's MAC that will then be passed to Server-A via FI-B to L2 switch to FI-A.I don't expect any traffic between servers A & B be routed via firewall? Is there anything I need to be careful about in this design? Going forward we will have multiple subinterfaces on the firewall for different VLANs and all servers will use Firewall as default gateway.

you may want to look at the throughput of your firewall for server-server traffic in different VLANs. If your L2 switch is 10G but your firewall is only 1G then you could have a potential bottle neck.

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Distributed File System Replication between servers with different performance

If Distributed File System Replication is set between servers with different performance. What will happen with the performance of the fastest server? Will the performance decrease to match the performance of the
slowest server in the chain? I mean, will the source slow down (processor speed) if the recipients can't keep up?

Hi,
If you mix different performance server for DFS replication, most of improvements on the fastest server are disabled for backwards compatibility and the performance decrease to match the performance of the slowest server.
For more detailed information, please refer to the article below:
Tuning replication performance in DFSR (especially on Win2008 R2)
http://blogs.technet.com/b/askds/archive/2010/03/31/tuning-replication-performance-in-dfsr-especially-on-win2008-r2.aspx
Best Regards,
Mandy
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Communication between processes in different ear files

I have two processes that I created in WLI 10. Each process is deployed to the same Weblogic 10 server but they are in different ear files. How can I send messages between the two WLI processes without making a web service call? Im trying to find an efficient way to communicate between the two processes. Since there is alot of overhead with web service calls I am trying to stay away from using web service calls. I would like to use a WLI control but I cant find a control that will communicate with another process outside of an ear file without using web service calls.
Any help is greatly appreciated!
Thanks -
John

There are two ways of doing it
1. Have the first WLI process put the message to the queue and have the second WLI process to start by pickin up messages from the queue
2. Generate the wsdl out of the Second Process, create a Process Control and call the second process using the Process Control.
The Choice depends on the frequency of calls and payload. If the frequency and payload is high, it is preferred to use the first approach.
Edited by: varun.iyer on Sep 3, 2009 3:44 PM

Data Communication between flash and different applications

Is there a way to communicate between two different
standalone applications, without using a HTTP server ?
for eg: from Flash to JVM

hi,
I want to communicate between flash exe and director exe
using local
connection object. Can anybody help me in this, by telling
the code for it. I
tried a lot using it by different ways but I am not succesful
in it yet
Thanx in advance
ANSWER :
you should make an action script to the animation & etc.
you made in your FLASH by a name as like as this : (I made a pause
Button & named it gPause);
on (release) {
getURL("event:gPause");
and then in youe director file make a MovieScript including
the following code :
on startMovie
member("name of member you imported from Flash as swf. file
").model("Bip01").bonesplayer.pause()
end
on gPause
member("name of member you imported from Flash as swf. file
").model("Bip01").bonesplayer.pause()
end

Jndi communication between app servers?

Hi all,
I'm quite familiar with J2EE and its communication architecture. In the past, I haven't had the need to communicate from one app server to another (just all web/applet clients to the central app server). But now I need to :)
Is there a way to communicate (synchronously) between app servers on different machines that aren't clustered? Clustering is not a possibility.
I know JMS is an option, but JMS is asyncrhonous. I also know you can't create server sockets in an app server because the J2EE spec disallows this approach, so forget about client/server communication via sockets.
This would be my ideal solution:
Server A does a jndi lookup for a bean on server B. Server A gets this reference and works with it just like any other J2EE client to server B.
Does JNDI allow you to do lookups to other namespaces outside of the current namespace on server A?
Can this even be done?
Thanks,
Les Hazlewood

Yes. It's possible. For one of my applications, I have three HP-UX servers that run i2 software on them, but for different business units. I have a J2EE application that does a little bit of everything for the i2 applications. Since the business logic is the same, with only the business dept differing, I deployed 3 instances of JBoss, each running on their own server. My user's log into one of the applications, doesn't matter which, and if they request a service (EJB) that needs to run on a different server, my webapp makes a connection to that server and uses the remote EJB to do the work. It's very possible and an excellent solution.
The solution will depend on which J2EE server you're using.
Here's a class I use to retrieve the InitialContext I need for my application:
package com.cibavision;
import javax.naming.InitialContext;
import javax.naming.Context;
import javax.naming.NamingException;
import java.rmi.RemoteException;
import java.util.Properties;
public class CibaJNDI{
   public static InitialContext getInitialContext ( String server ) throws javax.naming.NamingException {
      Properties p = new Properties () ;
      p.put(Context.INITIAL_CONTEXT_FACTORY,
             "org.jnp.interfaces.NamingContextFactory");
      p.put(Context.PROVIDER_URL,
             "jnp://" + server + ":1099");
      p.put(Context.URL_PKG_PREFIXES,
             "org.jboss.naming:org.jnp.interfaces");
      return new InitialContext (p) ;
}Using this class, I have logic in my application that calls for the appropriate server, something like this:
if businessA then use server1
if businessB then use server2
if businessC then use server3
I then call for my InitialContext, request my EJB, and I'm off and running. No clustering, it matters which machine I'm on (I have to read extract files, etc.)
Works great. We are also a weblogic shop, but I haven't made any calls to weblogic from outside my J2EE app yet, but it should only differ by the hash attributes you pass to new InitialContext( props ).
Hope this helps,
Perry Tew

Communication between different JVMs

Hallo,
is there a simple way, to exchange data between different java sessions? At the moment I store the needed data to a table and load it in my java procedures when ever I need them.
But because this data is temporary, it wouldn't really be necessary to store the data. It's just for communication between the different JVMs. Is there an other way to do this, too?
Thanks, Christian

Christian, I may have misunderstood your question, but, until java version 1.4, the only way for different JVMs to communicate was via sockets, or secondary storage (the file system -- which includes databases).
In java version 5.0 (previously version 1.5), there is a new feature known as class data sharing.
But since you posted to the "Database >> JVM" forum, I can't help thinking that you are referring to different database JVMs. Is that correct? In any case, sockets and secondary storage are your only options there as well.
Good Luck,
Avi.

Ports required for communication between Web servers and service applications (the default is HTTP)

We're using SharePoint 2010, I'm the system admin for a SharePoint farm. We enabled SharePoint Search by adding a Search Service APplication. One of the crawl report timer job is failing every 5 minte with the error "Cannot connect to remote server".
After digging around, we found that the server running the timer job tries to connect to the SearchAdmin.svc on the index server, over HTTPS / port 32844 However, communication over SSL via a non default port is blocked by our firewall.
According to this article: https://technet.microsoft.com/en-us/library/cc262849.aspx the default is HTTP for communication
between web servers. How is it possible that it's trying to connect over SSL?

Hi,
Quoted from
https://technet.microsoft.com/en-us/library/cc262849.aspx#ServiceApp :
You can change the protocol and port binding for each service application. On the Service Applications page in Central Administration, select the service application, and then click
Publish.
Here is an article for configuring Windows firewall port rules for SharePoint using PowerShell in case you need:
http://www.xylos.com/default.aspx?id=1050
Regards,
Rebecca Tu
TechNet Community Support
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I have burned CDs before from 2gb to 7gb using different types of discs. Now I get this error message Apple error The disc can't be burned because communication between the computer and the disc drive failed (error code 0x80020022). What should I do

I have burned CDs before from 2gb to 7gb using different types of discs. Now I get this error message Apple error The disc can't be burned because communication between the computer and the disc drive failed (error code 0x80020022). What should I do

Reset the SMC, as per > Resetting the System Management Controller (SMC)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.
Then zap the PRAM/NVRAM as per > About NVRAM and PRAM
1. Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.
Then retry the Disc Drive.

Communication between Edge and Transport servers in Exchange 2010

hi,
Its a strange communication error that I'm having here, though there are no service outages observed till now.
When I try to test-servicehealth from any HUB server to any Edge server, it always says some error (refer the error below), but the services are all running perfectly fine. even restarting of RPC service and WMI service not helped either.
likewise when I run get-exchangeserver -server <edgeserver> | fl name,*exchangeadminversion*, this result shows exchange version is 14.2, but the actual version of Edge server is 14.3 (SP3 with RU8.
This means the communication between my Edge server to other exchange server having some issues? or is it a conman behavior that i no need to worry?
Error message:
Couldn't get information about the Exchange services using Windows Management Instrumentation (WMI) due to error: WMI e
xception occurred on server 'Edgeserver.domain.com': The RPC server is unavailable. (Exception from HRESULT: 0x800706B
A)
+ CategoryInfo : ReadError: (:) [Test-ServiceHealth], ServiceHealthWmiFailureException
+ FullyQualifiedErrorId : EBBF3409,Microsoft.Exchange.Monitoring.TestServiceHealth

I think I got an answer for this question.
The version number displayed is the one that was written to Active Directory at the time the Edge subscription was created. Because EdgeSync is a one way process, the version number does not update as you update the Edge Transport server to newer versions.
If you want the version number to reflect the current value, recreate the Edge subscription

Communication between the DNS/DHCP Manager and OES Server

No communication between the DNS/DHCP Manager Console and OES server (status,start,stop)
The screenshot shows the tab "DHCP (OES Linux)" in the DNS / DHCP Manager console
in the bottom of the image it shows the state of the DHCP servers.
allDHCP.JPG
The dhcp service is started on all these servers
You can see that the status is known only for four servers.
The button "start/stop DHCP service" works fine on this servers and
the dhcp service can be canceled and also restarted
But the status of the "dhcp service" is not recognized for all the other DHCP servers
and so we can not start or stop dhcp service on these servers.
All servers were installed at different times (last three years) with OES11 and
are upgraded to OES11SP2 with all patches.
The server keto (DHCP_keto) is a new installation OES11SP2 few days ago.
All OES servers were set up identically from me. LDAP, LUM, DMS, DHCP works fine.
Which service on the OES server is responsible for
communication (status indicator) between the DNS/DHCP Manager and the OES serve?
How the status query is performed by the DNS/DHCP Manager?
How can I test the communication to the server on the client (console)?
Which configurationfiles I should be compare on the server?
Thanks in advance
Gernot

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Communication between RAC instances

Hi,
I see different answers for this Communication between RAC instances in google.
1. UDP
2.Distributed Lock Manager (DLM)
which one of is correct?

both of them are correct on different layers. The IP protocol used over the interconnect is udp and one of the protocols/mechanism implemented above that is DLM.

Communication between RAC instances in google.

Hi,
I see different answers for this Communication between RAC instances in google.
1. UDP
2.Distributed Lock Manager (DLM)
which one of is correct?

Pl do not post duplicate threads - Communication between RAC instances
Srini

Communication between the primary server the gateway server

hallo
Can I set the directional communication between the primary server the gateway server, so it feels by the following example?
And if so how?
Agent
à GW
ß GW
ß MS
*Agent communicates with GW1 and reported it
*GW SEND report to GW2
*GW2 Send the the data to MS
thanks
<o:p></o:p>
אם תגובתי פתרה את בעייתך - לחץ/י, על "סמן כתשובה" ליד סימן ה V הירוק.

Hi,
As far as I know, Gateways dont talk to each other. Why you need two GW, with one GW and report to your management servers, this way should work.
Here is a similar thread for your reference:
https://social.technet.microsoft.com/Forums/systemcenter/en-US/323d5aab-bad4-4c23-b096-27a62757ae31/communications-between-2-gateway-servers-and-2-ms?forum=operationsmanagerdeployment
Regards,
Yan Li
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Communication between client and server

I am using sockets for communication between the client and the server. is there any other way that i can use for communication between the client and server???

Plenty of ways: JMS, SOAP, RMI, a RESTful API, writing-files-to-a-shared-directory-on-the-disk, Sneakernet, ...
Some of them use sockets (or better TCP/IP) as the underlying protocol.
But to give you a good answer, you would have to tell us why you want a different way. I hope you're not searching for a different way just for the sake of being different.

Communication between thread in the same process using file interface.

Hi,
I am developing driver and i need to communicate between two thread.
>can anyone guide me on implementing communication between two thread in the same process using File Interface. First thread will be driver and second will be application.I need to send IOCTL like commands using File interface ie is WriteFile(),ReadFile()
from Host process to driver through file-interface(which run's in driver context).Host process should not be blocked for the duration of the driver to process the command.
>File-interface will run in driver context and it will be responsible to receive command from application and pass it to the driver.
what are the complexity introduced?
>Can anyone also give me the link/reference to get more information on this topic?
>How to replace IOCTL command's for instance baud _rate change command with a file interface for example with IRP.

Here is the detailed query:
Hardware Abstraction Layer will interact with Driver(Both will be running in complete different process) .there is a IOCTL for command and File interface for read and write.
My requirement is:
Both should run in the same process so HAL will run as one thread and driver as another thread in the same process .I don't want HAL to wait for completion of request and also i don't want driver to be blocked .
We are planning to use a File Interface for communication between Hardware abstraction layer and Driver
HAL will send the command or read/write operation to a file interface and driver will get the command or read/write request from the File interface
There is a flexibility to change Hardware Abstraction layer and also the Driver
Is it possible to use IOCTL between two thread under same process? if not what other options do we have.
Can we use File interface to send command (like IOCTL) between two thread?

Communication between servers on different FIs

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