Monitoring of Tuxedo 9.1 and RAC load balancing?

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• Vary the size of the host and the load balancing

  I have a 4 4-host ESX cluster that is almost the maximum ability to manage virtual machines ~ 80 (and growing).  The hosts are configured with 4 to 8 cores and 32 GB of RAM each.  RAM is currently the bottleneck; Processor is not far behind.  I plan to replace one of the hosts with a much larger machine, 12 cores, 96 GB of RAM.  If a host is significantly larger than the other hosts in a cluster, DRS will still do a good job of load balancing?  I guess the DRS will place multiple virtual machines on the host to the largest.  Is there a risk of DRS. putting too many virtual machines on the largest node?

  Until the cluster is in CVS mode, or processors are compatible vmotion, you can vary the size of the resource of physical machines in the cluster.  DRS will try to balance the load, the better it can over all cluster resources.  Depending on your level of DRS aggressive, improving to a particular machine in terms of past performance is considered, so more that likely, that you will have more vm on the host of the largest.

  -KjB

• NIC teaming + with leaves HP VirtualConnect and Cisco load balancing

  Hello

  I configure ESX infrastructure running on the blades HP (c7000 enclosure), VirtualConnect and Cisco 3750 switches for the uplink. My network configuration is based on the HP VirtualConnnect Cookbook, scenario 11.

  On the ESX Server, I configured a vSwitch with two NICs grouped. Each card can see a different network of VirtualConnect. Each VC network has active SmartLink.

  Each network of VirtualConnect is associated with two ports on a Bay of VC. These two ports are the uplinks in Cisco 3750 switches. Cisco switches are configured in a pile, and each port associated with the VC network is configured with LACP.

  Here are the facts:

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  -Failover and failback function OK.

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  What Miss me? Thank you very much

  Pablo

  Because you want to create technically not a channel in an ESX perspective, you do want to use the hash of the IP.  If ESX attempts to send traffic through the two network cards, the cisco switch should drop this package as part of its loop avoidance algorithms.  You should be able to check that out in the switch port statistics.  You should not use the switch port ID.

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  VMware vExpert

• RAC load balancing question

  We have added a third node of a cluster with two nodes on 11/7. Before the addition, expenses (via the OS uptime command or above) on the two first nodes were included between 20 and 40. The first node was the more active of the two, rarely fall below 30, but on both charges were very high. These first two nodes have two dual core CPU with 16 GB of RAM, who have six cases of db on each. The third node has two quad core CPU and 16 GB of RAM. We added only the busiest db on the third node, so there is only a single instance. We have added the third node to all remote to connect DB files tnsnames, with LOAD_BALANCE = yes. For the first week, Sunday 11/7 to Sunday 11/14, most incoming connections were still nodes 1 and 2. Connections have been made to node 3, but not as much as we would like. However, since this last Sunday 11/14, the majority of the connections are nodes 2 and 3. Rarely a connection will node 1. We can connect directly on node 1 with no problems. Nothing has changed over the weekend and nothing has been restarted. Is something that takes a while to 'calibrate' load balancing? Is there something that we can check or change to give a more balanced load? We are new on the PAP, so we are puzzled as to why it happened this way. Any guidance or advice is greatly appreciated.

  You must configure at the level load balancing server-side.

  (1) register all instances in any listener by setting local_listener and remote_listener of init parameters
  (2) CLB_GOAL set of each service, to set the expected duration of connections ("SHORT" for the pools of connections or "LONG" for forms)
  (3) set the GOAL of each services, updated the workload expected (FLOW for batch) or TIME of SERVICE for web sessions

• vswitch\pswitch and NIC load balancing

  Hi all, I would like to pass a scenario by you all to see if I'm on the right track...

  We have 2 guests with DAS each and the vswitches to connect with 2

  1 GB card physical network of a pswitch (spine) of the spine, I have 3.

  2nd level going @ 100 MB / who joined forces 1 GB connection to the

  spine. With me so far?

  Now, I think that the network knows contension request that

  Sometimes we lag eg: switching shared printers printing

  Server, digging the network shares, etc...

  I have check the performance data on the host computer and I see not heavy

  bandwidth, the cpu, the disk activity load. I check the NETWORK card and it

  appears only 1 never get used even if I don't know they are associated

  correctly.

  I decieded to get another switch of the same spine model and plan

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  Separate them each to the spine and then another tree covering weight

  in each office, idea that switching will be better

  spread the load across the two NIC to the vswitch...

  At present, there are only 2 NICs in each host, I have another 2

  cards Go transit and 2,100 mb NIC to use for the console. I plan to use 2 news

  NIC Go for interhost connectivity and create a virtual SAN for extra

  space on each DAS.

  I've attached diagrams of deouifinecomptent Rapids and the proposed crossing and also how I could team up on the vswitch...

  Thank you for your time!

  That's what I've got to meet the night - if you change your IP Hash the vmkernel will review each IP packet out and based on the IP address of the source and the destination the vmkernel wil choose the physical NIC connected to the virtual switch - so for an example, and I will keep it simple assumes that you don't have a simple VM with a single virtual NETWORK adapter connected to the virtual switch - now lets look at two examples possible

  1. The virtual machine is a web wean provideing conebt to multiple users - each IP address of the V will remain constant, but each user will have a different IP address for traffic coming out will be distributed in all of the cards of physoical connected to the virtual switch.

  2. The virtual machine is an application server to connect to a physical SQL Server - in this case the starting and destination IP addresses will not change if the traffic go on a physical network adapters

  Hope this cleared up-

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• Client based in 12 G load balancing

  We have a JDBC configuration against an address scan with client load balancing enabled.

  Example:

  JDBC:Oracle:Thin:@(Description=(LOAD_BALANCE=on)(Address=(Protocol=TCP)(Host=xxxxxxxxxxxx.de)(port=xxxx))(CONNECT_DATA=(service_name=XXXXXX)))

  What I understand of Diference between Client-side and Server Load Balancing If you do not use the server load balancing, you can bypass by connecting the service that identifies a particular node of RAC name.

  
  

  My question is, if you have a connection pool object this configuration and if the name service maps node to goes down, what happens to the connection connection pool?

  
  

  Issue 1) Don't scan address switches to the available according to the name of the service node, then the JDBC driver on the client must file all embusked connections and reconnect the available node? or is all the agnostic client failure of node on and all the old connections available in the pool are available for use?

  
  

  
  

  The client side or server balancing side basically works for the same purpose. The difference is that you do not have all the customers to reconfigure then change something in the environment, such as adding or removing a node such as the side server.

  Answer your question...

  If you mean the shared server architecture by connection pool, the shared server session connected to node 1 will die and everyone shares this session should log. Failover is not automatic, you must specify the failover clause in the JDBC or TNS connect string:

  TEST_TAF =

  (DESCRIPTION =

  (ADDRESS = (PROTOCOL = TCP)

  (HOST = rac - scan.example.com) (PORT = 1525))

  (CONNECT_DATA =

  (SERVICE_NAME = test)

  (FAILOVER_MODE = (TYPE = SESSION) (METHOD = Basic))

  ) )

  Or if you use failover and load balancing services you set failover described below:

  for 12 c: srvctl $ add orcl db-test - oel6vm1 favorite-available oel6vm2 - tafpolicy BASE - failovermethod SESSION service service - failoverretry 5 - failoverdelay 60

  for 11g: $ srvctl add service d orcl if test - r oel6vm1 - oel6vm2 BASIC EI SESSION m - z 5 AW 60

  Was what you mean?

• The side load balancing test server

  Hello
  Can anyone tell me about any test cases for server side in a 11.1.0.7 RAC load balancing?
  
  I have a 2 RAC nodes with either local_listener and remote_listener correctly (for load balancing server-side). For the test, I create a TNS to my side client that points to a single node of the PAP (a single ADDRESS entry pointing to node 1 of my CARS). So, this customer, whenever I log in, it always connects me node 1 I mentioned in the LMO. This means that server-side load balancing works jointly with the client side only load balancing and I would also add the address entered my TNS for the second node? If Yes, then how can I create a test case to check server load balancing?
  
  Thank you
  
  Salman

  Dear Salman Qureshi,

  There is a small video about load balancing server (http://www.dsvolk.ru/oracle/racdd4d/demos/video/loadbalance/server/serverloadbalance_viewlet_swf.html)

• Least loaded node load - balancing

  Hello

  Due to dynamic service registration, a listener is always aware of all instances and dispatchers regardless 
  of their locations. Depending on the load information, a listener decides which instance and, if shared server 
  is configured, which dispatcher to send the incoming client request to. In a shared server configuration, a 
  listener selects a dispatcher in the following order:
  
  1. Least-loaded node
  2. Least-loaded instance
  3. Least-loaded dispatcher for that instance
  
  In a dedicated server configuration, a listener selects an instance in the following order:
  
  1. Least loaded node
  2. Least loaded instance

  When we talk about connection (from 9i to Oracle RAC) load balancing it are two things main considered as least loaded node & least loaded instance.
  So what factor should be considered for an average of least loaded node CUP, memory, IO, network or even the number of process running(running,sleep,...) is oracle gather information from top, utility wink to get statistician.
  And when we say least loaded node this factor are considered by oracle is that, as the number of sessions (active, inactive...) "(or killed), using component CMS." Can we say load on node is proportional to the load on the Forum... How oracle identifies and what process does it for balancing.
  
  Any docs or paper?
  
  Thank you

  Hello

  10.1 and oracle 9i

  Less loaded node means less CPU load
  Least loaded instance means less number of connections that have been made to the instance

  'Process' and "instance charge" gives an indication of the number of connections that have been made to the instance.

  "Charge of node" gives an indication of the degree of activity of the machine is. By default, 'charge of node"is the main factor in determining where to go new connections.
  For example, if you have a 2 RAC cluster and instance 1 has a load of instance node and '25' 2 has a charge of '50' node, new connections will be routed to
  instance 1.

  Changes to Oracle 10.2
  In versions of Oracle 10.2 and later, the listener uses a local value "lbscore" to determine the charge of node and instance.
  Lbscore consists of two dynamic values 'kindness' and 'delta' which are continuously updated by pmon.
  When an instance is started PMON will communicate with the listener and provide departure for goodness and the delta values...

  Listener = goodness of PMON Lbscore
  Listener Delta = Delta PMON

  To account for changes in load between PMON updated, the listener will increment the lbscore after each new incoming connection...

  Lbscore listener = listener (previous) Lbscore + earpiece Delta

  With each periodic update load by PMON the Lbscore and Delta are updated with the current data.

  Lbscore = goodness (receipt of updated PMON)
  Delta = New Delta (receipt of updated PMON)

  This note explain everything:
  * Understand and troubleshoot the Instance Load Balancing [ID 263599.1] *.

  Kind regards
  Levi Pereira

• Hyperion 11.1.2.1 load balancing

  Hi all

  We intend to set up load with 11.1.2.1 balancing version.

  Server1 - Foundation, planning, Reporting

  Server2 - Foundation, planning, Reporting

  Server3 - HFM and FDM

  Server4 - HFM and FDM

  Server5 - database, Essbase (linux)

  Previously, we planning but load balancing has ever done foundation, hfm and fdm load balancing. So, need some suggestions before you start this process.

  For planning, we have installed planning (Server1 and Server2). In weblogic, we got 2 managed servers Planning0 and planning of the depenses1.

  By default the Round robin method, taken in load balancing.

  But the case of Foundation also, can we follow same process?

  can we use weblogic even serever1 only for all servers or can we install 2 servers weblogic 2 servers (server1, server2), where we plan to install Foundation?

  Thank you

  Mady

  You follow the same process you did for planning, weblogic will be installed by default on all servers, you can use the same domain server and weblogic administrator.

  Run the server configuration web foundation once completed.

  See you soon

  John

• FDMEE load balancing

  Hello

  According to the documentation of EMP 11.1.2.3

  Oracle Hyperion EPM system high availability and Disaster Recovery Guide

  I don't see anything about the FDMEE load balancing and high availability.

  Can implement us the high availability and FDMEE load balancing?

  Yes, it works in the same way as other Java Web applications.

  See you soon

  John

  http://John-Goodwin.blogspot.com/

• Content Tracker with load balancer

  We have 2 production servers and a load balancer.
  Each production server has its own database, stellent instance and components.
  So each prod server stores its own tracker data contained in its database.
  Question is what will be the effective way for the consolidated data of Tracker content of two servers?
  
  Experts, please help, thanks in advance...

  SQL Server or Oracle?

  You could replicate databases two product in a third, merged, only the database for single instance reports.

• Oracle RAC Concept - load balancing

  Hi all
  
  I have a question about the Oracle RAC and how it balances the load.
  What I know about Oracle RAC that it load balancing between his node, so if a new session is connected to the database it will run on the node that has less load.
  If I have an application that connects to the database with little number of sessions and a few sessions are huge (huge load) implementation process while other sessions are running small processes (in terms of load).
  
  So here's an example scenario that I request a response to this one:
  If am having a two node RAC database.
  
  My application connected to this database RAC wants to run three processes P1, P2 and P3, each will have a session correlatively S1, S2 and S3
  Let's say that P1 will take 60% of database resources (memory) and P2 P3 1% and 1%.
  So my question is this a sessions load balancing or load balancing process? So in this case and at random (Managed by ORACLE RAC) S1 is connected to node 1 and it uses the resources of node 1 so the load on node 1 will be 60%, so when S2 and S3 must connect it will go to node 2 from node 1 is loaded. in this case I'll have 1 node using 60% of it's resources (because of S1 that runs P1) while node 2 uses only 2% (because of the S2 and S3 running P2 and P3).
  Is - this operation of Oracle RAC? or it S1 (60%) load balance between nodes 1 and 2?
  
  I ask this question because my application is not users, so it will connect to the database with the small number of sessions, and 1 session of them can run a huge process while the other runs of small processes.
  So in this case, how RAC takes stock of loading?
  
  Kind regards

  Check out more excellent document on the management of the CAR of James Morle connections:
  http://www.scaleabilities.co.uk/index.php/view-details/whitepapers/12-RAC_Connection_Management.pdf.html

  Registration is required, but free...

  -Mark

• Configuration of AppsTier (CFP, load balancing) of nodes R12 Multi with RAC 2 nodes

  Dear all,
  
  I installed and configured applications R12 with Oracle RAC 2 nodes. (APP1, DB1 and DB2).
  
  Now, I need to add a layer of application (APP2) to configure high availability, balancing load and PCP.
  
  So, I cloned (adcfgclone.pl appsTier) application for APP2 layer (not shared, the two file systems are different). When I run the application it doesn't knot APP2 App1, more more simultaneous manager works only on a node (can be due to APPLCSF does not point to the mounting NFS share folder), although I've defined managers primary school-children also.
  
  If I run the autoconfiguration of APP1 application service will only work on APP1 and even if I do for APP2, then application works with APP2. I need to have configuration CFP, balancing the load (via DNS if possible) and the high availabllity for the Application tier.
  
  When I start the application, it will start OPMN and APPS Listener on the nodes, but simultaneous manager does not start on both, to a single node.
  
  Is this requires having both APPS name of the node is the same?
  
  Thank you very much
  
  Ravi Purbia
  
  Published by: Purbia delighted on June 9, 2009 18:04
  
  Published by: Purbia delighted on June 9, 2009 18:05
  
  Published by: Purbia delighted on June 9, 2009 18:07

  Ravi,

  If I run the autoconfiguration of APP1 application service will only work on APP1 and even if I do for APP2, then application works with APP2.

  Most likely, it's something with the profile option values, then run utility adchkcfg to get an html report that lists all files and profile options that change when you run AutoConfig on each node.

  I need to have configuration CFP, balancing the load (via DNS if possible) and the high availabllity for the Application tier.

  For load balancing, you must perform the steps according to the guidelines of this document.

  Note: 380489.1 - using Load-balance with Oracle E-Business Suite Release 12
  https://metalink2.Oracle.com/MetaLink/PLSQL/ml2_documents.showDocument?p_database_id=not&P_ID=380489.1

  For the installation of the CFP, please see:

  Note: 388577.1 - using Load-balance with Oracle E-Business Suite Release 12
  https://metalink2.Oracle.com/MetaLink/PLSQL/ml2_documents.showDocument?p_database_id=not&P_ID=388577.1

  When I start the application, it will start OPMN and APPS Listener on the nodes, but simultaneous manager does not start on both, to a single node.

  Any errors in the log file of CM?

  Is this requires having both APPS name of the node is the same?

  It is not necessary.

  Kind regards
  Hussein

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  21:36 Thursday; September 15, 2016

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