Weblogic Cluster on a machine with multiple NIC

Out Setup
          One Quad Machine
          2 NIC - one ip address on each
          Two weblogic installations
          Each Instance is listening on one address and port 7001.(managed servers)
          Admin Server on one of the ip and port 8001
          Both managed servers part of a cluster.
          While i check weblogic console i see both the managed server
          having almost same number of frames incoming and outgoing.
          If i check 4 processers all 4 of them working eqaully same
          during out load test..(almost 85%)
          But i check NICs only one of them seems to be working really hard..
          and another one so..so.. what could be the problem??

          Weblogic 7 has a new concept called network channel, where there is a section talking
          about clustering over multiple NIC cards. I was confused by the cluster address in
          customized network channel (no example there). I tried to use multiple NIC cards
          for the purpose of network failover, but failed in clustering environment, although
          I succeed in single server environment.
          Kumar Allamraju <[email protected]> wrote:
          >You can set Interface address via admin console's
          >Cluster >> {Cluster Name }
          >
          >on the right hand side you will find InterfaceAddress box.
          >
          >--
          >Kumar
          >
          >zevit wrote:
          >
          >>>It's the JVM & OS who will take adv. of multiple NIC's. We don't have
          >>>anything in WLS that does this thing.
          >>>
          >>>Alternatively you can bind each WLS instance to a specific NIC card
          >>>to effeciently utilize each NIC card.
          >>>
          >>
          >> thank u kumar.. Could u please tell me how do i bind each WSL instance
          >> to a specific NIC ?
          >>
          >

Similar Messages

WOL question. SCCM server with multiple nics.

Hi,
I have a sccm server with multiple nics, I can wake up any machine using a 3ed party magic packet utility, if I set a schedule and use sccm wol functionally the machine never wakes up. As I pointed out my server has multiple nics, does anyone have a sccm
server with multiple nics with sccm built in wol functionally working?. I am curious on how you achieved this.

Hey Garth,
Yes the problem is solved but we had to buy a 3rd party power management utility to accomplish WOL. Because we have many different subnets in our environment we found that this was the fastest way to get WOL working,
So out of the box SCCM would not work for us, with a 3rd party utility that had an SCCM plugin WOL now works flawlessly.

DataSocket fails intermittently with multiple NICs enabled using LV7.1

Using LV7.1 and Datasocket v4.2, I was intermittently (but quite often) having problems reading and writing to the datasocket server (primarily from the server side). My application should read the value in the item and upon finding a specific string it should immediately follow it with a write of a default string. However, it can find the same string multiple times and not complete the write. Logging the errors from the write shows that no error is occurring. The client is not at fault because it only writes the string once every few minutes. I was able to finally show that by disabling the extra NIC on my system running the datasocket server that the connection seems to operate reliably. Both NICs
were set to static IP addresses, but only one was connected. I do have the program writing to "dstp://localhost/UUT" as opposed to a specific IP address (not sure if it matters).
With Labview6.1 I did not have this problem. It was only after I re-compiled my application with LV7.1 that I started having issues.

Philip,
I do not feel I am running out of bandwidth since I have run it successfully on 1Gbit NIC connections on a P4 2.4GHz system as well as a 10/100Gbit NIC on an old 650MHz system with LV6.1. I only do two writes per variable (on up to 8 variables) once every few minutes. I did not seem to be a re-entrant VI issue.
I have created two VIs which should allow you to recreate the failing conditions with multiple NICs enabled. It responds very quickly with one NIC enabled, but when one or two more NICs is enabled, it gets very slow to respond and has some timeouts.
One VI is the writer, the other is the reader. Start both VIs and start all 8 reader loops. Then you can consecutive
ly click on all 8 sender loops. Doing this with and without multiple NICs enabled should show you the problem.
Note: I think the issue I was talking about in earlier posts about getting multiple strings back before it wrote out "Loop" was due to the fact that the writes were not occurring quickly enough and the reads were happening multiple times. Therefore, in these VIs, I revised the read and close timeouts to -1.
I think it would be best if you could call me so we can discuss this issue. If you can email me, I will send you my contact information if you don't already have access to it.
Attachments:
ReadSocket_Multiple_MSHv1.vi ‏360 KB
WriteSocket_Multiple_MSHv1.vi ‏216 KB

Multiple WL instances on same machine with multiple clusters

Hi,
          I am wondering if it is possible to run two separate instances of WL on a
          single machine, with each instance belonging to a separate cluster? The
          machines are not multi-homed, so each instance must listen on a separate
          port.
          Our current architecture looks like this:
          4 web servers running NSAPI WL plug-in
          3 app. server boxes running WL 5.1 SP2
          I would like to start multiple instances of WL on each app. server to better
          utilize the hardware, and would like each instance to be part of a separate
          cluster.
          My questions are:
          1. Do I have to have a separate multicast address for each cluster, or can
          I use the same address since the clusters are on different ports?
          2. In the NSAPI plug-in, you simple specify a list of all the servers for a
          cluster. Are there any issues with having the machine/port names in this
          list belonging to different clusters?
          Thanks,
          Bob


Comments inline.
          Cheers - Wei
          www4.weblogic.com <[email protected]> wrote in message
          news:[email protected]...
          > Hi,
          >
          > I am wondering if it is possible to run two separate instances of WL on a
          > single machine, with each instance belonging to a separate cluster? The
          > machines are not multi-homed, so each instance must listen on a separate
          > port.
          Yes, you can. FYI, in addition, each cluster use different multicast
          address.
          >
          > Our current architecture looks like this:
          >
          > 4 web servers running NSAPI WL plug-in
          > 3 app. server boxes running WL 5.1 SP2
          >
          > I would like to start multiple instances of WL on each app. server to
          better
          > utilize the hardware, and would like each instance to be part of a
          separate
          > cluster.
          >
          > My questions are:
          >
          > 1. Do I have to have a separate multicast address for each cluster, or
          can
          > I use the same address since the clusters are on different ports?
          Different multicast addresses.
          >
          > 2. In the NSAPI plug-in, you simple specify a list of all the servers for
          a
          > cluster. Are there any issues with having the machine/port names in this
          > list belonging to different clusters?
          In-memory replication will not work.
          >
          > Thanks,
          > Bob
          >
          >
          >

Time Machine with multiple users on single computer

Hi All,
I have an iMac at home with multiple user log ons. I'm about to get the Time Capsule and start using Time Machine (currently I use backup).
When I switch on Time Machine, does it switch on for all users, or will each user need to turn on Time Machine?
If I have to switch on Time Machine for each user, will each user's time machine back up the entire computer (so I'll have two complete copies on my computer on the external drive)?
If this does occur, can I control what Time Machine backs up so TM only backs up user specific information?
Thanks in advance,
Chris

When you first backup it will backup your whole system (user directories, system directories, applications, etc) unless you specify folders to exclude. When a user account is added to the computer, their home folder will be added to the backup in a similar way to if you added a new application. It will back up the directory structure exactly as it is on your main hard drive. The backup will essentially keep a copy of the whole hard drive on the backup drive.
The Time Machine will either be on for the whole system, or off for the whole system. It is not on or off for a specific user account. Users (depending on if they've got admin privileges) may have control over turning time machine on or off, but this does not change who can access the backups. All users will be able to invoke Time Machine to get to their backed up files.
Time Machine does not make separate backups for individual users. Instead, it preserves the permissions for backed up files, so while every user can access the backups, they cant just browse other users' files on the backup. The same restrictions on the main drive are carried over to the backup. Still, a standard user who's lost a file will be able to go into Time Machine, access a backed up version of the file, and restore it. Unlike standard users who are restricted from seeing other users' files in the backups, Admins are also restricted but they can be authenticated to view other users' files if they want to.

Bonjour not finding anything from PC with Multiple NICs

We have two Network Interface Cards in each workstation at work to access two separate Physical Networks. Both networks provide access to ZeroConf (Bonjour) IP Printers.
Bonjour discovery fails intermittently on the two different networks. Occasionally Printers on one network, the other network, both or neither are visible from various workstations.
Is mDNSResponder aware of multiple NICs? Is there a way to force mDNSResponder to only search for printers on a particular subnet?

The second network adapter was installed after the VPC, indeed.
In the dropdown menu in the VPC networking settings there was only one network adapter to chose because the description for both physical network cards were the same. Therefore I cannot assign for virtual NICs different physical network adapters.
Finally I coped with the problem:
- I uninstalled one of the adapters (removing the drivers, too),
- edited the INF file in the adapter drivers and changed the description of the adapter
- I reinstalled the adapter with the altered driver (with the INF file changed).
Then, in the VPC networking settings both physical adapters appeared (one with the altered description).
I Wonder if that will cause any problems later ;)
Thanks for your replies :)

Shutting down a queued event state machine with multiple parallel loops

I am trying to find the best way to shutdown a program that consists of a queued event state machine architecture with multiple parallel loops. Can anyone recommend the best way to accomplish this in my attached VI? (From browsing the forum, this seems to be a common question but I haven't found a solution that works for me.)
I welcome any other feedback on my code as well, if anyone is willing to offer it.
My Program Requirements:
If the user presses the "Shutdown" button, the program should prompt the user with "Are you sure you want to stop the program?" and then either return to the Idle state or proceed to stop the program. Additionally if there is an error, the program should prompt the user with "Clear error and continue, or Stop program?" Then either return to the Idle State or proceed to stop the program.
Details of architecture:
The program consists of 3 parallel loops: (1) an Event Handling loop that enqueues various States to a State Queue, (2) a State Machine which enters the latest state that is dequeued from the State Queue, and (3) an Error/Shutdown handling loop which processes any errors in the Error queue.
During normal Shutdown, in the Event Handling loop the "Program.Shutdown" event case executes, and the States "Shutdown" and "Idle" are added to the State Queue. In the State Machine, the "Shutdown" state is invoked. A special error code "5000" is added to the Error Queue. In the Error/Shutdown handling loop, the "5000" error triggers a prompt that asks the user if they want to stop the program. If the user chooses not to stop, a notifier StopNotif is sent to the "Shutdown" state and "Program.Shutdown" event case with the notification "Go". If the user chooses to stop, the notifier sends the notification "Stop". The Event handling loop and State Machine are terminated if they receive the notification "Stop".
In case of error, the program behaves similarly: if the user chooses to clear the error and continue, the program returns to the "Idle" state.
HOWEVER - if the user chooses to stop the program, the program stalls. The notifier that is sent to stop the Event Handling Loop and State Machine cannot be read because the Program.Shutdown event case and the Shutdown state (which contain the "Wait for Notifier" function) are not active.
I have been able to activate the Shutdown state by enqueuing it in the Error/Shutdown handling loop. But I don't know how to activate the "Program.Shutdown" event programmatically, and thereby access the "Wait for Notifier" function inside it.
I tried to place the "Wait for Notifier" function outside the event structure, but then the Event Handling loop never completes. Placing timeouts on the "Wait for Notifier" and on the Event structure makes the program work, but I want to avoid using timeouts because I don't want to turn my event-driven program into a polling-based program. I'd also like to avoid using variables or property nodes to stop the loops, because that requires creating a control/indicator for something that the user doesnt need to interact with.
Thank you!
Solved!
Go to Solution.
Attachments:
Queued event state machine parallel loops empty.vi ‏46 KB

Thanks for clarifying that, Ravens Fan.
I marked crossrulz as the solution for pointing out User Events to me.
I also adopted Ravens Fan's suggestion to keep the Shutdown procedure out of the Error Handling Loop. This has simplified the architecture by eliminating the need for Notifiers. Instead, I have used booleans in case structures to stop the Event Loop and State Machine, and Release Queue to stop the Error Handling Loop.
For reference, I'm attaching my corrected code.
Thank you to everyone who helped!
Attachments:
Queued event state machine parallel loops empty in progress.vi ‏44 KB

Vm with multiple nic

Most of the time I only add a second vNIC to multi-hone the VM so it can connect to two different subnets (i.e. one vNIC for backup traffic connected to a different vSwitch with different physical uplink than all connections for production VM traffic).
As Rod said, it may prove more beneficial to only have one vNIC unless you somehow have so much traffic that the one vNIC is overloaded. What version of VMWare are you running?

We have a switch with multiple vmmic (five), Is there any advantages os using multiple nic for vm to improve network performance ?
This topic first appeared in the Spiceworks Community

Domain Agents and E6900 with multiple NICs.

Hello,
I have some issues configuring Sun management Center 3.6 (and 3.6.1) on a network with this characteristics:
2 x E6900 (with 2 Domains each one)
1 x v210
The Server Component of Sun Management Center is installed on the v210. In this machine are installed the Platform Agents of the 2 System Controllers of the 2 E6900.
Each domain has installed de Sun Management Center Agent.
The network configuration of the Domains is this:
Each domain has 3 NIC on 3 different network interfaces, and each NIC has its own hostname. One of this NIC is destinated to the administration network to be used for the Sun Management Center. This nic, as I said before, has its own hostname but it its different of the nodename (the node name is the same as the public interface of the domain, not the administration interface).
The Domains does not use DNS, and the information included on the /etc/hosts is related to local NICs and the NICs of the other Domains, but anyone contains the NIC of the admin interface of other domain nor the NIC of the v210.
The v210 does not has DNS neither, and has only their own information on /etc/hosts.
All Domains has Solaris 9, and v210 has Solaris 10.
Basically the problem is:
"The Domain Agents cannot communicate with SunMC Server", when I manually add each agent. The discovery process doesn't work neither.
I checked the domain-config.x of one domain and it shows:
agent = {
agentServer = "venwas1"
logicalAddressMode = "ip"
snmpPort = "1161"
"venwas1" is the hostname of the public interface, nor the administration interface.
I changed the value for the hostname of the administration interface with no success; then changed for the ip address of the administration interface; and no success neither.
The default platform agent works, but does not appers with the corrent icon on the SunMC console. Its appears like a folder icon, and the documentation said that the Platform Agents is represented with a specific Icon.
Please, anyone can help me ?
Thanks in advance.

Hi Alejandro,
I checked the domain-config.x of one domain and it
shows:
agent = {
agentServer = "venwas1"
logicalAddressMode = "ip"
snmpPort = "1161"
nwas1" is the hostname of the public interface, nor
the administration interface.
I changed the value for the hostname of the
administration interface with no success; then
changed for the ip address of the administration
interface; and no success neither.If you just change the hostname or IP, but don't do anything else, it won't work as the Agent has already created security keys for that old entry and needs to be reseeded. Change the entry to the IP that's on the same network as your SunMC Server, then run this command on the Agent while it's turned off:
/opt/SUNWsymon/sbin/es-run base-usm-seed.sh -s <SEED> -c agent
..replacing <SEED> with the same seed/password you used on your SunMC Server. Then start the Agent back up, wait for it a couple minutes, and try to make an icon for it again.
The default platform agent works, but does not appers
with the corrent icon on the SunMC console. Its
appears like a folder icon, and the documentation
said that the Platform Agents is represented with a
specific Icon.If the icon is incorrect then your SunMC Server is missing some files (or you've found a bug). You'll want all these addons installed on your Server:
Dynamic Reconfiguration for Sun Fire High-End and Midrange Systems
Sun Fire Midrange Systems Platform Administration
Sun Fire Midrange Systems Domain Administration
If you think you may be missing some (look in /var/opt/SUNWsymon/install/install.[timestamp] to see how you answered questions during your last install) you can run /opt/SUNWsymon/sbin/es-inst again and point it to your distribution media and it will only ask about packages that may be missing. If you do end up adding in some of the Midrange addons then a simple Console restart should refresh your Platform icons.
Regards,
[email protected]
http://www.HalcyonInc.com

RMI uses incorrect InetAddress on machine with two nics

Hello All,
RMI registry and server run on the same host. Host has two nics, one assigned for private network (192.168.x.x) and another for global.
For the sake of creating RMI registry I use the global one and specify it as four dot-delimited numbers instead of machine name:
Registry registry = LocateRegistry.getRegistry("xxx.xxx.xxx.xxx", rmiPort); // "xxx.xxx.xxx.xxx" is global IP addressInvoking a method with just a port as a single parameter causes RMI to bind to the private address, so I avoided that trouble by using numeric IP.
Remote client is able to locate the registry and extract the stub from it now, but ironically retrieved stub contains private address inside.
Debugger shows that the proxy stub contains TCPEndpoint which resolves to 192.168.xxx.xxx:yyyy
I am exporting the object on the server side by using UnicastRemoteObject.exportObject(myObj, 0) method.
Unfortunately, there is no method which would allow to specify the InetAddress to bind the object on.
I've seen the battle on page [Remote Method Invocation (RMI) - Why does RMI server sets its connection address?|http://forums.sun.com/thread.jspa?threadID=5366985].
Close questions are discussed, but I haven't found answer on my question.
Is there an ability to specify the address when exporting the object?
Or any workaround to let the client retrieve the proper stub which can be used to send requests to the server?
Thank,
Alex.

For the sake of creating RMI registry I use the global one and specify it as four dot-delimited numbers instead of machine name:
Registry registry = LocateRegistry.getRegistry("xxx.xxx.xxx.xxx", rmiPort); // "xxx.xxx.xxx.xxx" is global IP address
That doesn't create a registry. It just returns a stub to an existing registry.
Invoking a method with just a port as a single parameter causes RMI to bind to the private address.No it doesn't. It causes RMI to construct a stub using "localhost" as the hostname. If this maps to the private address via your /etc/hosts file or DNS, so be it.
Remote client is able to locate the registry and extract the stub from it now, but ironically retrieved stub contains private address inside.Nothing ironic about it. The stub doesn't know where you got it from. The address inside the stub is controlled by what "localhost" resolves to in the server JVM. If it resolves to something inconvenient, either change that or set the system property java.rmi.server.hostname to the desired IP address or hostname in the server JVM.
Unfortunately, there is no method which would allow to specify the InetAddress to bind the object on.You don't normally need one, see above, although in pathological cases you could use an RMIServerSocketFactory, which does give you that ability.
I haven't found answer on my question.See also the RMI FAQ, item A.1.
Is there an ability to specify the address when exporting the object? See above.

Connecting to AOP data store with multiple NIC's

I have a situation where I need to have the computer running Diadem to be connected to two different networks. I have two NIC's installed in the machine, NIC A and NIC B, we will call them. The reason for this, is that I am using Diadem to access an AOP server on an AVL PUMA machine. If I connect PUMA to the LAN, PUMA occasionally crashes, probably something to do with the IP address. So, PUMA needs to be on a network that does not have a router. My diadem computer needs to communicate with PUMA, and with the local shared drives on our company network.
Anyway, I have the company LAN hooked up on NIC A, and the PUMA network hooked up on NIC B. Diadem fails to connect when both networks are connected, but connects to the data store no problem when only the PUMA network is hooked up. Any ideas how to fix this? It seems diadem is looking at NIC A instead of NIC B, like it should be.
For reference, when both NIC's are hooked up, I can access share drives, and ping computers on both separate networks, without a problem, so it's not a connection issue.
Any help would be appreciated.
-Russ
Solved!
Go to Solution.

I assume poth NIC have different IP range.
- Did you use IP instead of server name.
- Do you use RPC or CORBA to access the PUMA server?
- Which DIAdem version.
Can you create a logfile when the connection fails?
Greetings
Andreas

Using authorized-hosts with multiple NICs

I'm trying to limit cluster/grid membership using the authorized-hosts attribute, and I need to specify which Ethernet port is used when I start Coherence (or which one(s) to ignore). We have a "private" network setup that we want to run Coherence on, and the default NIC/port 0 is not part of that network.
So I need to tell Coherence to use a specific port when it starts and not just the first IP port/address it finds. Is there a way to specify which NIC/IP address Coherence uses when it creates/joins the cluster?
Following is the override file I place into tangosol-coherence-override.xml. This file is in the classpath before coherence.jar when i start my JVM.
<?xml version='1.0'?>

<coherence xml-override="/tangosol-coherence-override.xml">
<cluster-config>
     <authorized-hosts>
     <host-address id="1">172.16.1.1</host-address>
     <host-address id="2">172.16.1.2</host-address>
     <host-address id="3">172.16.2.1</host-address>
     <host-address id="4">172.16.2.2</host-address>
     </authorized-hosts>
</cluster-config>
</coherence>
Thanks in advance for your help.
Stacy Maydew

Hi Stacy,
it is possible to bind all Coherence traffic to a single network interface using the -Dtangosol.coherence.localhost=xxx.yyy.aaa.bbb and -Dtangosol.coherence.localport=xyzab which specifies which ip address and port to use for sending and receiving.
Alternatively you can use an operational configuration override file which specifies the unicast-listener configuration element (see the link for more information).
You may would also need to specify the -Djava.net.preferIPv4Stack Java property if your operating system/kernel also has IPv6 enabled and you want to use an IPv4 address, otherwise we saw packets lost due to them travelling on different interfaces.
Best regards,
Robert

Windows Server CNA with multiple NICs needed

I have a Windows server in which I am teaming two CNA connections for Networking and Storage. They are teamed using the Emulex teaming utility. I want to set up a primary network and a backup network, but I cannot seem to edit the current
configured team to allow for multiple connections. Can anybody help out?

Hi,
To resolve your problem as soon as possible, please consult the teaming utility manufacturer about this issue.
To configure NIC Teaming on Windows Server 2012R2, please follow the steps below,
Click the server name in the list of servers (even if there is only a single server).
From the Tasks drop-down menu in the
Teams section, click New Team.
In the Add Team dialog box, type a team name and select the network adapters in the team.
If you are using VLANs, clear the Default check box and specify the VLAN ID. By default, the team will deliver up all traffic received regardless of VLAN ID (though the VLAN ID is passed with the packet so that
other components in the stack can sort them appropriately).
If you want to use a mode other than the default, click
Advanced and specify the teaming mode (Switch Independent, Static Teaming, or LACP) and load distribution mode (Address Hash) as needed.
Click OK to create the team.
You can change the Active/Standby adapter in step 5
For detailed information, please view the link below,
NIC Teaming Overview
http://technet.microsoft.com/en-us/library/hh831648.aspx
Hope this helps.
Steven Lee
TechNet Community Support

Time Machine with multiple HDs

Hi,
tried searching but couldn't find an answer so here goes:
Can you use multiple HDs with Time Machine? As in: I have 3 external 500gb HDs. Can I get three more to back up each one?

TM will only back up to one drive at a time. Other applications, such as SuperDuper, will back up to multiple drives. You could use Backup in Applications to back up selective files to another drive.
Joe

Time Machine with multiple hard drives

I use a very large external hard drive for time machine. I back up to this time machine, the two hard drivs that are inside my macbook pro, 512GB ssd, and 250GB SSD that is in the optical drive. I then backup a 1TB portable hard drive which holds all my movies and then I backup another 1Tb portable hard drive which holds all my "reserve" files, which means they are files that are no longer important to be on my computer. Old pictures, music, etc.
Now, I can't plug all of these drive's in at once. So, let's say I have to do a backup and I have nothing plugged in but the time machine external hard drive. Will it only backup the two hard drives that are in my computer and then later somehow let me go and restore the other drives? Or will it attempt to restore all 4 drives at one time? Because if the one in my computer mess's up, the other's may not be messed up and I do not want it to restore those.
I have used Time Machine before to restore my system. But never since I have started adding extra drives for Time Machine to backup.
I am also planning on adding, yet another drive for it to backup which is a 1TB portable hard drive that I keep raw files on for photography. I'm just curious how this works when and if the time comes.

well superduper is FREE, CCC isnt.........CCC can do the daily updates etc,. Superduper DOES NOT. the CCC and Superduper CLONES are bootable.......so, if your HD crashes, you can throw in the CLONE, and youre back and running in mins, rather than hours etc .
You should NEVER consider a backup a "backup", ........2 copies is 1, and 1 is none.....always have 2 copies of important files / pics etc etc,......... DECADES of work have been lost by people who thought their stuff was safe because they had a (meaning 1) backup.
Simplicity? Yes, Simplicity is my religion. CLONE your HD with programs and settings, ......and use a 2nd HD updated daily / weekly etc (preferable 2 such 'seecond' harddrives, copies of each other) with all personal stuff / work / pics / vids/ documents.....
superficially time machine is simpler, "smack a button and everything backs up".......in REALITY however when it "all goes up in flames"................the pro method (and my method) is QUICKER and more reliable by far to get down and running.
Ive restored other peoples from total crash and burns via Time machine.......and "my" way............my way always ends up faster by a mile. Also personal / work etc files are kept autonomous to the system data / programs OS,.....as it logically should be.
Time machine is the fastest incremental backup........but its as slow as paint peeling if you need it in case of a TOTAL CRASH.......wherein a bootable clone can be thrown in , in less than 20 mins.

Weblogic Cluster on a machine with multiple NIC

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