Load balancing between Instance for same external IP client

Hi,
I have a azure website which is single tenant and is going to be used inside a single Domain from same region.
Now my website provide good performance till 20 concurrent request. I want to scale this so that it can reach up to 30 - 40 -100 so on.
What are the options available to achieve this. till now what i have figured out is that
1. If i increase the web site instance or on the auto scale option. It load balances between the instances on the basis of Client external I.P. but in my case all the users which are using the site shares the same external IP.
I have tested it increasing the instances doesn't make any impact on my performance results.
2. I have also looked in traffic manager but that case is valid when the clients are on different GeoLocations which is also not valid in my case.
So my basic Question is if i have a pool of different scenarios where
100 users uses 1 azure website
200 uses uses 1 azure website
1000 users uses 1 azure website
what infra should i take for each website to support this have performnace same as 100 users.
Whenever you see a reply and if you think is helpful,Vote As Helpful! And whenever you see a reply being an answer to the question of the thread, click Mark As Answer

Hi,
I would request you to configure Web hosting plan and check if it helps in increasing the performance.
It gives a set of features and capacity that you can share across your websites separately.
http://azure.microsoft.com/en-us/documentation/articles/azure-web-sites-web-hosting-plans-in-depth-overview/
Regards,
Azam Khan

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Round robin DNS for load balancing between multiple network adapters (Xserve)

I'm attempting to use 'round robin' DNS to load balance between the two ethernet adapters of an Xserve.
Both ethernet adapters are connected to the same LAN and have static IP addresses of 192.168.2.250 and 192.168.2.251.
The DNS zone for the server's local domain/host (macserver.private) has a machine record with both IP addresses (set up in the Lion Server UI).
Having read up on round robin DNS, I would have expected DNS requests for 'macserver.private' to be answered with the two IP addresses ordered at random, achiving my aim of requests being served at random via each ethernet adapter.
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Be careful what you wish for
Round Robin DNS is rarely the best option for 'load balancing'. At the very least it's subject to caching at various point on the network - even at the client side, once the client looks up the address it will cache that response - this means that subsequent lookups may be served from the client's cache and not refer back to the server. Therfore any given client will always see the same address until the cache expires.
I suspect this is what you're seeing.
You can minimize this by setting a lower TTL on the records. This should result in the response being cached for a shorter period, meaning the client will make more requests to the server, with a higher change of using the 'other' address.
However, you're also going to run into issues with the server having two interfaces/addresses in the same LAN. This isn't recommended.
As Jonathon mentioned, you may be better off just bonding the two interfaces. This will provide an automatic level of dynamic load balancing without the latency of DNS caches, as well as automatic failover should one link fail (as opposed to round robin DNS which will cause 50% of requests to fail until the client cache expires and a new lookup is performed (and, even then, there's still a chance the client will try to use the failed link).

Load-Balancing between Foreign and two Anchors

Hi, we have two foreign controllers (one active, one standby) and two anchor controllers. All APs are connected to the active foreign controller. The layer 3 networks for the wlan clients on both anchors are different for the same SSID. SSID: Internet, anchor 1: Subnet A, anchor 2: Subnet B. So when a client is getting anchored to Anchor 1, the clients will get an ip from subnet A and when the client is getting anchored to anchor 2, the client will get an ip from subnet B.
This is so far not a big problem because we only have a few accesspoints in some rooms. But what will happen, when we have a full covered wlan and the client roams from one AP to the other AP? Is there a possibility, that the client will anchored to a different anchor while roaming? I think this will result in a lack of connectivity because without a real disconnect the client will not ask for a new IP address.
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All controllers are 5760 with 3.3.3 software.

Hi acontes,
It's an interesting question.
In this case, if all AP's are on WLC-A and there is no possibility that an L3 inter-subnet roam will occur between WLC-A and WLC-B, I would just forward WLC-A to Anchor A and WLC-B (in the event of fail over) to Anchor B (if Anchors reside on different subnets). If you must specify Anchor A and Anchor B on each WLC for redundancy purposes, it's important to understand the guidelines and limitations with regard to Foreign / Anchor Design.
As Scott mentioned, the limitation with Anchoring design is that there is no primary / secondary configuration for an Anchor on the Foreign WLC.
If WLC-A has two entries (1) for Anchor-A and (2) for Anchor-B, the EoIP tunnels are establish and load-balancing occurs in a round robin fashion.
Keep in mind the following with regard to guest N+1 redundancy:
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•Wireless clients that are associated with an anchor WLC that becomes unreachable are re-associated with another anchor defined for the WLAN. When this happens, assuming web authentication is being used, the client is redirected to the web portal authentication page and required to re-submit their credentials.
Since traffic is transported at Layer 2 via EoIP, the first point at which DHCP services can be implemented is either locally on the anchor controller or the controller can relay client DHCP requests to an external server. Since the IP address directly correlates to the DMZ subnet or the interface where the traffic egresses, it is possible for some clients to get IP's from both Subnet A or Subnet B in the event that WLC-A is building EoIP to both anchors.
1) What happens if my clients roam?
Nothing... since all AP's are on WLC-A, it's Intra-Controller Roaming
Each controller supports same-controller client roaming across access points managed by the same controller. This roaming is transparent to the client as the session is sustained, and the client continues using the same DHCP-assigned or client-assigned IP address. The controller provides DHCP functionality with a relay function. Same-controller roaming is supported in single-controller deployments and in multiple-controller deployments.
Would it be better to choose the same DHCP Pool on both anchors?
It's probably better to have redundant anchors on the same subnet, but it's not required.
3) How would you design this :-)
WLC-A <--EoIP--> Anchor A (DHCP Pool A)
WLC-A <--EoIP--> Anchor B (DHCP Pool A)
It's important to remeber what Scott mentioned about the lack of a primary / secondary relationship. If multiple controllers are added as mobility anchors for a particular WLAN on a foreign controller, the foreign controller internally sorts the controller by their IP address. The controller with the lowest IP address is the first anchor. For example, a typical ordered list would be 172.16.7.25, and 172.16.7.28. If the first client associates to the foreign controller's anchored WLAN, the client database entry is sent to the first anchor controller in the list, the second client is sent to the second controller in the list, and so on, until the end of the anchor list is reached. The process is repeated starting with the first anchor controller.
If any of the anchor controller is detected to be down, all the clients anchored to the controller are deauthenticated, and the clients then go through the authentication/anchoring process again in a round-robin manner with the remaining controller in the anchor list. This functionality is also extended to regular mobility clients through mobility failover. This feature enables mobility group members to detect failed members and reroute clients.

Load balancing between application server and database

Hi,
is there any load balancing between the application server and the database? Consider we have a single instance of an application server that sends database queries from different clients to the database. Are the requests queued in some way at the application server, allowing to control the flow of the queries (e.g. queries from "more important" clients might be sent with a higher priority)?
Thanks for your help!

Hi Victor/Jim/Volker,
Thanks a lot for all the responses..
Just wanted to let you guys know that my installation finished successfully.
The thing which confused me was that my Qtime, Qdate and everything else was showing correct values..
Well, my problem I set the environmental variable PASE_TZ to the EST time zone on a SYS level using WRKENVVAR>F4>SYS and added the variable. I logged off and the sidofr logged off, but one user which should have logged off and didn't was the "SAPINST"(my installation user) which was logged in the subsystem TMKSVR00.
Even when I had closed the SAPINST installlation program, the user doesn't log off...it just sits there until and unless u shut him out of the system using the option 4 on wrkactjob for ending the JOB(SAPINST logged in the system below the TMKSVR00 subsystem)
So since the SAPISNT user never logged of, his environmental variables were not initilized properly, even after the changes...
This thought came to me almost after a 6 hours of wasting my time searching for notes here and there...
I think when u end/stop the install in SAPINST, the SAPINST user should log off the AS400 system, but I have noticed, it never does...although when u restart the installation, if u have noticed it shows you the log on for the SAPINST user in the TMKSVR screen...
Its kind of buggy, I would say...
I have noticed, that even when I log on to AS400 from home or from a remote PC using Emulator, it shows me logged in the subsystem and even after i have logged of, it still shows me there...
Anyway, thanks a lot guys...for all your responses..
Just wanted to let you know all.
Thanks
Abhi

Load balancing and HA for persistence chat pool

Hi,
I have 12000 users for lync 2013 . plan to have 2 persistence chat servers in a pool , have below queries regarding the same.
1. which type of load balancing will work for persistence chat pool.... DNS or HLB? if its HLB then is it mandatory to use HLB , agenda is to minimize the cost.
2. there is already 2 HLB for FE pool , one for external service and 1 for internal service.... can i use the same HLB for persistence chat pool?
3. does persistence chat pool have HA bydefault like FE and Edge pool?

1) DNS LB is fine: You can see them doing it here:http://technet.microsoft.com/en-us/library/jj205391.aspx
2) I suppose you could, but I'd suggest sticking with DNS as it's easy, supported, and it works.
3) Yes. I believe so.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications

Question about load balancing between Portal and ABAP

Hi,
I have the problem whit load balancing between Portal and ECC (ERC) ABAP
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I need balancing in the ECC to Dialog Instance

Jco -> right. Another possibility is that you use iviews that point to the backend in this case you will need to use a load balanced entry for the backend system in the [system landscape|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/47/8c1e438d7017fce10000000a42189c/frameset.htm] -> SAP_R3_LoadBalancing
If you have ESS deployed on your portal, you will most probably need to do both.
Cheers Michael

Distributed Queue - Unable To Load Balance Between Each Time A Send Method Is Called

Hi,
          According to the JMS documentation, I should be able to get the
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          between each time the message producer calls Message.send(). I was not
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          I noticed the load balancing happens when a JMS client is stopped and
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          WLS 8.1 SP2 on XP
          One cluster with two nodes (running on the same machine w/ different port)
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          The queue session for the queue sender is created with transaction setting
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          Any hints and ideas would greatly appreciated.
          Here is the content of config.xml:
          ========================================================================
          <?xml version="1.0" encoding="UTF-8"?>
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          <Cluster ClusterAddress="localhost:8001,localhost:9001"
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          </Server>
          <Server Cluster="odhCluster_1" ExpectedToRun="false"
          IIOPEnabled="false" ListenAddress="" ListenPort="8001"
          Machine="localhost" Name="odhManagedServer_1"
          NativeIOEnabled="true" ServerVersion="8.1.2.0">
          <SSL Enabled="false" IdentityAndTrustLocations="KeyStores"
          Name="odhManagedServer_1"/>
          <ExecuteQueue Name="weblogic.kernel.Default" ThreadCount="15"/>
          </Server>
          <Server Cluster="odhCluster_1" ExpectedToRun="false"
          IIOPEnabled="false" ListenAddress="" ListenPort="9001"
          Machine="localhost" Name="odhManagedServer_2"
          NativeIOEnabled="true" ServerVersion="8.1.2.0">
          <SSL Enabled="false" IdentityAndTrustLocations="KeyStores"
          Name="odhManagedServer_2"/>
          <ExecuteQueue Name="weblogic.kernel.Default" ThreadCount="15"/>
          </Server>
          <MigratableTarget Cluster="odhCluster_1"
          Name="odhManagedServer_1 (migratable)"
          Notes="This is a system generated default migratable target for a
          server. Do not delete manually."
          UserPreferredServer="odhManagedServer_1"/>
          <MigratableTarget Cluster="odhCluster_1"
          Name="odhManagedServer_2 (migratable)"
          Notes="This is a system generated default migratable target for a
          server. Do not delete manually."
          UserPreferredServer="odhManagedServer_2"/>
          <Machine Name="localhost">
          <NodeManager ListenAddress="localhost" Name="localhost"/>
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          <JMSConnectionFactory AcknowledgePolicy="All"
          DefaultDeliveryMode="Persistent"
          JNDIName="com.neoforma.ConnectionFactory"
          Name="odhConnectionFactory" ServerAffinityEnabled="false"
          Targets="odhCluster_1" XAConnectionFactoryEnabled="true"/>
          <JMSDistributedQueue JNDIName="com.neoforma.odhDistributedQueue_1"
          LoadBalancingPolicy="Round-Robin" Name="odhDistributedQueue_1"
          Targets="odhCluster_1">
          <JMSDistributedQueueMember JMSQueue="odhQueue_1"
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          <JMSDistributedQueueMember JMSQueue="odhQueue_2"
          Name="DistributedQueueMember_2"/>
          </JMSDistributedQueue>
          <JMSJDBCStore ConnectionPool="odhMessagePool"
          Name="odhJMSJDBCStore_1" PrefixName="Order1_"/>
          <JMSJDBCStore ConnectionPool="odhMessagePool"
          Name="odhJMSJDBCStore_2" PrefixName="Order2_"/>
          <JMSServer Name="odhJMSServer_1" Store="odhJMSJDBCStore_1"
          Targets="odhManagedServer_1">
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          Properties="user=..." Targets="odhCluster_1"
          TestTableName="SQL SELECT 1 FROM DUAL" URL="................."/>
          <JDBCConnectionPool DriverName="oracle.jdbc.driver.OracleDriver"
          Name="odhMessagePool" Password="....."
          Properties="user=....." Targets="odhCluster_1"
          TestTableName="SQL SELECT 1 FROM DUAL" URL="............."/>
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          StagingMode="stage" TwoPhase="true">
          <EJBComponent Name="odh.jar" Targets="odhCluster_1" URI="odh.jar"/>
          </Application>
          <StartupClass ClassName="com.neoforma.startup.JMXMBeanStartup"
          DeploymentOrder="1" Name="ODH MBean Startup Class"
          Notes="ODH MBean Startup Class - Note" Targets="odhAdmin"/>
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          Credential="{3DES}YFY55/dsdxI9HL/AKGRXHuR1VwyJewNFdAHdrtk/WMM="
          Name="odh"/>
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          Credential="{3DES}ZCPa1Bsrj3z2DhVKVUbq32zTYipDVff+LDB9+1b2Dr4VLhz5yjZyHgPheqS/kum4VVZamDYN07Hyb6rALiCTHhwt1EzK5+M+"
          Name="odh" RealmBootStrapVersion="1"/>
          </Domain>


Thanks for the Makiey. I am surprise that BEA hasn't come back with any
          info.
          Hien
          On 7 Jul 2004 01:51:01 -0700, makiey <[email protected]> wrote:
          >
          > Hi Hien Luu,
          >
          > We also have a problem with load balancing, tested with WLS 7.0 SP4 and
          > WLS 8.1
          > SP2 (HP UX). The only "working" configuration is load-balancing policy =
          > random
          > (CF deployed to cluster, load balancing enabled, affinity disabled).
          > With the
          > "round-robin" policy we cannot utilize more than 50% dis. queue's
          > members.
          >
          > I'm trying to prepare a reproducer...
          >
          > greetings,
          > makiey
          >
          >
          > "Hien Luu" <[email protected]> wrote:
          >> Hi,
          >>
          >> According to the JMS documentation, I should be able to get the =
          >>
          >> distributed queue to load balance
          >> between each time the message producer calls Message.send(). I was not
          >> =
          >> =
          >>
          >> able to achieve this, however,
          >> I noticed the load balancing happens when a JMS client is stopped and
          >> =
          >>
          >> restarted (meaning totally
          >> exit the JVM and restart the JVM).
          >>
          >> Here is my configuration:
          >>
          >> WLS 8.1 SP2 on XP
          >> One cluster with two nodes (running on the same machine w/ different
          >> por=
          >> t)
          >> Each node hosts one JMS server, which hosts one physical queue and
          >> using=
          >> =
          >>
          >> JDBC store
          >> One distributed queue with two physical members from each of the JMS
          >> =
          >>
          >> server.
          >> JMS Connection Factory is configured with "Load Balancing Enabled" set
          >> t=
          >> o =
          >>
          >> yes,
          >> and "Server Affinity Enabled" to no. This connection factory is target
          >> =
          >> to =
          >>
          >> the cluster.
          >>
          >> The queue session for the queue sender is created with transaction
          >> setti=
          >> ng =
          >>
          >> to false.
          >>
          >> Any hints and ideas would greatly appreciated.
          >>
          >>
          >> Here is the content of config.xml:
          >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
          >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
          >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
          >>
          >> <?xml version=3D"1.0" encoding=3D"UTF-8"?>
          >> <Domain ConfigurationVersion=3D"8.1.0.0" Name=3D"odh">
          >> <Cluster ClusterAddress=3D"localhost:8001,localhost:9001"
          >> MulticastAddress=3D"237.0.0.1" Name=3D"odhCluster_1"/>
          >> <Server ListenAddress=3D"" ListenPort=3D"7001" Machine=3D"localhost=
          >> "
          >> Name=3D"odhAdmin" NativeIOEnabled=3D"true" ServerVersion=3D"8.1=
          >> .2.0">
          >> <SSL Enabled=3D"false" HostnameVerificationIgnored=3D"false"
          >> IdentityAndTrustLocations=3D"KeyStores" Name=3D"odhAdmin"/>=
          >>
          >> </Server>
          >> <Server Cluster=3D"odhCluster_1" ExpectedToRun=3D"false"
          >> IIOPEnabled=3D"false" ListenAddress=3D"" ListenPort=3D"8001"
          >> Machine=3D"localhost" Name=3D"odhManagedServer_1"
          >> NativeIOEnabled=3D"true" ServerVersion=3D"8.1.2.0">
          >> <SSL Enabled=3D"false" IdentityAndTrustLocations=3D"KeyStores"
          >> =
          >> =
          >>
          >> Name=3D"odhManagedServer_1"/>
          >> <ExecuteQueue Name=3D"weblogic.kernel.Default" ThreadCount=3D"1=
          >> 5"/>
          >> </Server>
          >> <Server Cluster=3D"odhCluster_1" ExpectedToRun=3D"false"
          >> IIOPEnabled=3D"false" ListenAddress=3D"" ListenPort=3D"9001"
          >> Machine=3D"localhost" Name=3D"odhManagedServer_2"
          >> NativeIOEnabled=3D"true" ServerVersion=3D"8.1.2.0">
          >> <SSL Enabled=3D"false" IdentityAndTrustLocations=3D"KeyStores"
          >> =
          >> =
          >>
          >> Name=3D"odhManagedServer_2"/>
          >> <ExecuteQueue Name=3D"weblogic.kernel.Default" ThreadCount=3D"1=
          >> 5"/>
          >> </Server>
          >> <MigratableTarget Cluster=3D"odhCluster_1"
          >> Name=3D"odhManagedServer_1 (migratable)"
          >> Notes=3D"This is a system generated default migratable target
          >> f=
          >> or a =
          >>
          >> server. Do not delete manually."
          >> UserPreferredServer=3D"odhManagedServer_1"/>
          >> <MigratableTarget Cluster=3D"odhCluster_1"
          >> Name=3D"odhManagedServer_2 (migratable)"
          >> Notes=3D"This is a system generated default migratable target
          >> f=
          >> or a =
          >>
          >> server. Do not delete manually."
          >> UserPreferredServer=3D"odhManagedServer_2"/>
          >> <Machine Name=3D"localhost">
          >> <NodeManager ListenAddress=3D"localhost" Name=3D"localhost"/>
          >> </Machine>
          >> <JMSConnectionFactory AcknowledgePolicy=3D"All"
          >> DefaultDeliveryMode=3D"Persistent"
          >> JNDIName=3D"com.neoforma.ConnectionFactory"
          >> Name=3D"odhConnectionFactory" ServerAffinityEnabled=3D"false"
          >> Targets=3D"odhCluster_1" XAConnectionFactoryEnabled=3D"true"/>
          >> <JMSDistributedQueue JNDIName=3D"com.neoforma.odhDistributedQueue_1=
          >> "
          >> LoadBalancingPolicy=3D"Round-Robin" Name=3D"odhDistributedQueue=
          >> _1" =
          >>
          >> Targets=3D"odhCluster_1">
          >> <JMSDistributedQueueMember JMSQueue=3D"odhQueue_1" =
          >>
          >> Name=3D"DistributedQueueMember_1"/>
          >> <JMSDistributedQueueMember JMSQueue=3D"odhQueue_2" =
          >>
          >> Name=3D"DistributedQueueMember_2"/>
          >> </JMSDistributedQueue>
          >> <JMSJDBCStore ConnectionPool=3D"odhMessagePool"
          >> Name=3D"odhJMSJDBCStore_1" PrefixName=3D"Order1_"/>
          >> <JMSJDBCStore ConnectionPool=3D"odhMessagePool"
          >> Name=3D"odhJMSJDBCStore_2" PrefixName=3D"Order2_"/>
          >> <JMSServer Name=3D"odhJMSServer_1" Store=3D"odhJMSJDBCStore_1"
          >> =
          >>
          >> Targets=3D"odhManagedServer_1">
          >> <JMSQueue CreationTime=3D"1076439896999"
          >> JNDIName=3D"com.neoforma.odhQueue_1" Name=3D"odhQueue_1"
          >> =
          >>
          >> StoreEnabled=3D"true"/>
          >> </JMSServer>
          >> <JMSServer Name=3D"odhJMSServer_2" Store=3D"odhJMSJDBCStore_2"
          >> =
          >>
          >> Targets=3D"odhManagedServer_2">
          >> <JMSQueue CreationTime=3D"1076439664343"
          >> JNDIName=3D"com.neoforma.odhQueue_2" Name=3D"odhQueue_2"
          >> =
          >>
          >> StoreEnabled=3D"true"/>
          >> </JMSServer>
          >> <JDBCConnectionPool
          >> DriverName=3D"oracle.jdbc.xa.client.OracleXADataSource"
          >> Name=3D"odhConnectionPool" Password=3D"...."
          >> Properties=3D"user=3D..." Targets=3D"odhCluster_1"
          >> TestTableName=3D"SQL SELECT 1 FROM DUAL" URL=3D"...............=
          >> .."/>
          >> <JDBCConnectionPool DriverName=3D"oracle.jdbc.driver.OracleDriver"
          >> Name=3D"odhMessagePool" Password=3D"....."
          >> Properties=3D"user=3D....." Targets=3D"odhCluster_1"
          >> TestTableName=3D"SQL SELECT 1 FROM DUAL" URL=3D"............."/=
          >>>
          >> <JDBCMultiPool AlgorithmType=3D"High-Availability"
          >> Name=3D"odhJDBCMultiPool_1"
          >> PoolList=3D"odhConnectionPool,odhMessagePool" =
          >>
          >> Targets=3D"odhCluster_1"/>
          >> <JDBCTxDataSource EnableTwoPhaseCommit=3D"false"
          >> JNDIName=3D"com.neoforma.order.orderDS" Name=3D"odhJDBCDataSour=
          >> ce_1"
          >> PoolName=3D"odhConnectionPool" Targets=3D"odhCluster_1"/>
          >> <Security Name=3D"odh" PasswordPolicy=3D"wl_default_password_policy=
          >> "
          >> Realm=3D"wl_default_realm" RealmSetup=3D"true"/>
          >> 
          >> <Realm FileRealm=3D"wl_default_file_realm" Name=3D"wl_default_realm=
          >> "/>
          >> <FileRealm Name=3D"wl_default_file_realm"/>
          >> <PasswordPolicy Name=3D"wl_default_password_policy"/>
          >> <Application Deployed=3D"true" Name=3D"odh.ear"
          >> Path=3D"D:\bea\user_projects\domains\odh\applications\odh.ear"
          >> StagedTargets=3D"odhManagedServer_1,odhManagedServer_2"
          >> StagingMode=3D"stage" TwoPhase=3D"true">
          >> <EJBComponent Name=3D"odh.jar" Targets=3D"odhCluster_1" URI=3D"=
          >> odh.jar"/>
          >> </Application>
          >> <StartupClass ClassName=3D"com.neoforma.startup.JMXMBeanStartup"
          >> DeploymentOrder=3D"1" Name=3D"ODH MBean Startup Class"
          >> Notes=3D"ODH MBean Startup Class - Note" Targets=3D"odhAdmin"/>=
          >>
          >> <EmbeddedLDAP
          >> Credential=3D"{3DES}YFY55/dsdxI9HL/AKGRXHuR1VwyJewNFdAHdrtk/WMM=
          >> =3D" =
          >>
          >> Name=3D"odh"/>
          >> <SecurityConfiguration
          >> Credential=3D"{3DES}ZCPa1Bsrj3z2DhVKVUbq32zTYipDVff+LDB9+1b2Dr4=
          >> VLhz5yjZyHgPheqS/kum4VVZamDYN07Hyb6rALiCTHhwt1EzK5+M+"
          >> Name=3D"odh" RealmBootStrapVersion=3D"1"/>
          >> </Domain>
          >
          Using Opera's revolutionary e-mail client: http://www.opera.com/m2/

Load balancing between two routers

I have two routers connected through the LAN connection. The first one is using as routing protocol EIGRP, the other one is part of the managed service and I do not have access to it. I would like to make a load balancing between the two of them by redistributing the static routes in EIGRP. When I tried this, I am loosing the EIGRP entry for this route in the routing table. I would like to have both of them , so we could have traffic sharing. I appreciate if you give me any hints.

Raju,
you have two choices as far as I can see. If you want to use static routing over the WAN to your branch, you could duplicate your static routes to the branch and point them to the secondary router. You will have two identical sets of static routes in the primary router, one set pointing to the WAN interface and the other one pointing to the secondary router.
ip route x.x.x.x "WAN-interface"
ip route x.x.x.x "secondary router"
ip route y.y.y.y "WAN-interface"
ip route y.y.y.y "secondary router"
etc.
As a result the primary router will have two routes to the branch and will load-balance. If one next-hop fails (either the WAN interface or the secondary router), only the other will be used. If the next-hop comes back up, load-balancing will resume.
The other choice would be to use EIGRP over the WAN, and make sure the two routers become EIGRP neighbors. Then you can use the "variance" command to achieve unequal cost load-balancing between the two routers. Let me know if you need more information about this, but i think static routes will be sufficient in your situation.
HTH, Thomas

Network Load Balancing and failover for AFP Sharing

Dear all,
Somebody kindly teach me to use round robin DNS to perform the network load balancing, it's success but not the failover.
I have 4 xserve and want to do the load balancing and failover at the same time.
I have read the IP failover document and setup it successfully, but anyone know is it possible to do the IP failover for more than 2 server?
For example, 4 server serving the AFP service at the same time, maybe I have 1 more extra server to do the IP failover for thoese 4 servers.
As I know, IP failover require Firewire as the heartbeat detection. But one xserve only have 2 firewire ports. May I setting up the IP failover only by a ethernet port and an IP address? does it possible to detect and failover to any server after server down has been detected?
I believe load balancer maybe the best solution but its cost is too high.
Thanks any advance!
Karllee

well, u have 2 options here
software load balancing
request comes it foo.com -> ws7u2 hosting foo.com is configured to run as reverse proxy . this server sends any incoming requests to one of the four back end web server 7 handling your incoming request
hardware load balancing (this you need to invest)
request comes to hardware load balancer who responds for foo.com -> sends requests to four ws7 server hosting your application
you could try out how software load balancing works out for you before you invest in hardware load balancing
here is more instruction on configuring ws7 + reverse proxy (software load configuration)
- install ws7 on foo.com
- create a new configuration (choose port 80, disable java

Load balancing between two interfaces on 2811

Hi,
We have a 2811 router with VPN and NAT configured. We have two internet connection from different ISPs. The speed of our original connection is 2MB up and down. The speed of our new connection is 1MB up and down. We want to configure load balancing between the two connections. Our new ISP has provided us with a CISCO 837 router. We want to connect that router into our 2811 on one of the free WIC card and then configure load balancing between the two interfaces on our 2811. The third interface has a local address configured. Please suggest where to start. I tried searching on net for any configuration example but I was unable to find any particular example with commands. I am new on CISCO platform. Any help will be hugely appreciated. Thanks in advance.

Raju,
you have two choices as far as I can see. If you want to use static routing over the WAN to your branch, you could duplicate your static routes to the branch and point them to the secondary router. You will have two identical sets of static routes in the primary router, one set pointing to the WAN interface and the other one pointing to the secondary router.
ip route x.x.x.x "WAN-interface"
ip route x.x.x.x "secondary router"
ip route y.y.y.y "WAN-interface"
ip route y.y.y.y "secondary router"
etc.
As a result the primary router will have two routes to the branch and will load-balance. If one next-hop fails (either the WAN interface or the secondary router), only the other will be used. If the next-hop comes back up, load-balancing will resume.
The other choice would be to use EIGRP over the WAN, and make sure the two routers become EIGRP neighbors. Then you can use the "variance" command to achieve unequal cost load-balancing between the two routers. Let me know if you need more information about this, but i think static routes will be sufficient in your situation.
HTH, Thomas

Office Web Apps Load Balancing Configuration Issue for SharePoint 2013

I have load balanced servers dedicated for Office Web Apps with name “md1xxxwfe1” and “md1xxxwfe2”
, both this servers are load balanced by CISCO Load balancer. And I have mapped Load Balancer Virutal IP with host name officeapps.jda.corp.local in the DNS records.
Things are working fine if I add new farm by using New-OfficeWebAppsFarm
with server name as internalurl in PowerShell console
as like “ -internalurl http://
md1xxxwfe1 but when I use –internalurl officeapps.jda.corp.local it is not working at all. I’m not getting what to do at this point.
I have gone through following blogs but no luck.
http://blogs.technet.com/b/meamcs/archive/2013/03/27/office-web-apps-2013-multi-servers-nlb-installation-and-deployment-for-sharepoint-2013-step-by-step-guide.aspx
http://blogs.technet.com/b/office_resource_kit/archive/2012/09/11/introducing-office-web-apps-server.aspx
http://davidlimsharepoint.blogspot.in/2013/02/installing-and-configuring-office-web.html
http://sps2013.blogspot.in/2013/09/office-web-apps-with-sharepoint-2013.html
The output of the wfe1 server is attached with this. When I open http:// /hosting/discovery in wfe1 I’m getting following result (attached
screenshot) but it should show hostname rather than server name.
Please help me
Thanks, Ram Ch

Hi Ram ,
For troubleshooting your issue, please take steps as below:
Just about any load balancing solution will work, including a server that runs the Web Server (IIS) role running Application Request Routing (ARR):Install
Application Request Routing
Install the certificate on the load balancer as described under Securing Office Web Apps Server communications by using
HTTPS.
Make sure you have configured the cluster correctly for full internet name:
Reference:
http://technet.microsoft.com/en-us/library/jj219435.aspx#loadbalancer
Thanks,
Eric
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support,
contact [email protected]
Eric Tao
TechNet Community Support

Load Balance Between Diff DB's or Instances??

Hello All,
Based on the below TNS entry, my understanding is that since it has multiple listener addresses by default connect time failover is configured and as description says load balancing option is also enabled.
But how would i know whether fail over & load balancing is happening to the same instance of database or altogether to a different database??.... I did nslookup on the server names though IP addresses are different it's still not clear for me....
How different are the Oracle instance & Oracle DB??
Could you please shed some light for me to cross check, Thank you.
BDCD =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = xxx-vip.abc.com)(PORT = 1557))
    (ADDRESS = (PROTOCOL = TCP)(HOST = yyy-vip.abc.com)(PORT = 1557))
    (LOAD_BALANCE = yes)
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = BDCD)
)

Ariean wrote:
1.) Thanks for your reply, so load balancing and/or fail over will only happen between different instances of the single database or can it also be possible between 2 different databases provided the databases are in sync??
Yes, it can be done between two databases as well and this is called Standby database configuration. This won't do the load balancing for you but you would get teh switchover (or Failover) between two.
2.) Would it be possible to have PROD & DR database servers with load/fail over options configured and also with dataguard setup between those 2 DB's will have same IP addresses & host names like below?
PROD      DataBase Server     tsjipud186.xyz.mq.abcd.net     123.45.67.30
                     tsjipud187.xyz.mq.abcd.net     123.45.67.55
DR     DataBase Server          tsjipud186.xyz.mq.abcd.net     123.45.67.30
                    tsjipud187.xyz.mq.abcd.net     123.45.67.55
Hmm may be I need a cup of coffee because not able to parse the question.
Aman....

Load balancing HTTP requests for an OC4J instance w/multiple JVMs

Hello everyone,
I am using OAS 10.1.3.1 and wish to load balance HTTP requests across an OC4J group of one or more OC4J instances, where each like named OC4J instance may have multiple JVMs or it may just have one JVM.
My mod_oc4j.conf file would contain the following directives :
Oc4jSelectMethod roundrobin:local
Oc4jRoutingMode Static
Oc4JMount /xyz/* xyz
In the degenerate case, I would like to have an OC4J group with a cluster size of one, and have that one OC4J instance have two or more JVMs. I would like to be able to receive a request within my web application, determine that the JVM that has been sent the request is the wrong JVM to process the request, and then call HttpServletResponse.sendRedirect("/xyz"). Then, when the browser receives the HTTP 302 response and issues the subsequent HTTP request, have that request sent to a different JVM than the previous JVM that issued the sendRedirect().
What I have seen is that the subsequent request is sent back to the same JVM that issued the sendRedirect(). I also call invalidate() against the HttpSession prior to calling sendRedirect(), but that does not seem to affect the behavior that I see.
In the full blown case, I would have an OC4J group with a cluster size > 1, and each of those OC4J instances would have at least one JVM. In that case, I wish the sendRedirect() call to allow the subsequent request to be sent to any one of the OC4J instances in the group, and any one of those JVMs within all of those OC4J instances.
Can anyone verify that my mod_oc4j mount directive is appropriate given the select method and routing mode? What else might I need to do to have a chance to have a different JVM respond to the request that results from a sendRedirect()?
Thank you,
Doug

I should clarify that in the full blown environment, the OC4J instances that form a group will each be housed within a separate OAS instance that resides on its own machine.
So ideally, a request could be inbound to say OAS instance 1 on machine A, OC4J instance AA, JVM 2, and I need to force a redirect so that the request can actually be serviced by OAS instance 3 on machine C, OC4J instance AA, JVM 1, and I need to be able to call sendRedirect() against an HttpServletResponse from within a JVM until the subsequent request from the browser, Internet Explorer in my case, is serviced by that JVM.
Thanks,
Doug

Load balancing and clustering for SQL SERVER ANALYSIS SERVER instances to access large number of concurrent users for bi site

HI
how to do analysis server clustering
we have sharepoint bi site and we published many dashboards pointers ,filters kpis
and at a time some 200 to 300 concurrent users access these dashboards pages
so for maintain this requirement how we apply clustering for ssas intances
and also it has load balancing
adil

Hi Adil,
According to your description, you want to implement SQL Server Analysis Services Clusster and Analysis Services Load Balancing, right?
In SSAS, we can design highly available solutions in Analysis Services by using: network load balancing (NLB) technologies, failover clustering technologies, or both. For the details about implemention, please refer to the links below.
http://msdn.microsoft.com/en-us/library/dn736073.aspx
http://sqlsrvanalysissrvcs.codeplex.com/wikipage?title=Analysis%20Services%20Load%20Balancing
http://technet.microsoft.com/en-us/library/bb500217(v=sql.105).aspx
Regards,
Charlie Liao
TechNet Community Support

Load balancing and HA for office web apps server Lync 2013

Hi,
I have 12000 users, 3 FE servers in a pool, 2 edge server in a pool, HA required, IM/presence, A/V, WEb conferencing required. plan to have 2 office web apps server a farm with HA, below are my queries
1. which type of load balancing i need....DNS or HLB for office web app servers? if its HLB then is it mandatory?
2. i have already 2 HLB for FE pool .. one for externa url , one for internal URL...can i use the same HLB for office web app servers ?
3. one more question regarding EDGE pool load balancing, can i use the same HLB in EDge pool also that i am using for FE pool?

Hi,
1. which type of load balancing i need....DNS or HLB for office web app servers? if its HLB then is it mandatory?
WebApps runs on https and you cannot load balance http traffic using DNS load balancing. you need to have a HLB.
2. i have already 2 HLB for FE pool .. one for externa url , one for internal URL...can i use the same HLB for office web app servers ?
you can use the same HLB for that
3. one more question regarding EDGE pool load balancing, can i use the same HLB in EDge pool also that i am using for FE pool?
for that one, you probably need a separate HLB.
Z-Hire -- Automate Lync User Account creation process ( AD / Exchange / Lync )

Load balancing between Instance for same external IP client

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