WLS proxy plugin does not load balance

I have a cluster created with two app servers in separate boxes and a Weblogic proxy plug-in to forward the client requests to the servers. However, the proxy doesn't distribute the load equally. Very often 90% of the user sessions go to one server and 10% to the other. Both boxes have the same hardware specs.
          Does the WLS plugin really support round-robin load balancing ? I'd appreciate any information to solve this problem.
          Thanks
          - Miguel
          I'm using WLS 6.1 SP2.

Are you load balancing the web servers? What kind of web servers are you
          using?
          Miguel Vilar wrote:
          >I have a cluster created with two app servers in separate boxes and a Weblogic proxy plug-in to forward the client requests to the servers. However, the proxy doesn't distribute the load equally. Very often 90% of the user sessions go to one server and 10% to the other. Both boxes have the same hardware specs.
          >Does the WLS plugin really support round-robin load balancing ? I'd appreciate any information to solve this problem.
          >Thanks
          >- Miguel
          >I'm using WLS 6.1 SP2.
          >

Similar Messages

Plugin does not load in acrobat 9.5

Hi,
I have a plugin that loads in acrobat 8.0.0 but does not load in 9.5 how do i make sure that it gets loaded in 9.5 as well.
Thanks

There is no generic solution for this type of problem: You need to figure
out why it's not loading by debugging through the handshake functions. Set
a break point on all handshake functions and see which one of them causes
the problem. If you never actually get to any of the breakpoints, chances
are that there is something wrong with the runtime linker trying to load
the plug-in - like for example, a missing library.
Karl Heinz Kremer
PDF Acrobatics Without a Net
[email protected]
http://www.khkonsulting.com

WLS 8.1.4 cluster is does not load balance correctly

Hi WLS gurus!
I have a problem with my apache load balancer....
it seems apache does not see all WLS instances with DynamicServerList ON!
all connections come in to, in my case, instance 2...
my cluster runs on 2 separate machines..
any ideas? problem with DNS maybe?
thanks
Michael

Hi,
Go through the following link and check whether you configured load balancing settings correctly or not.
http://e-docs.bea.com/wls/docs81/cluster/load_balancing.html
Regards
Anilkumar kari

Reverse proxy plugin does not like the POST method

My second tier is not functionning properly when placed behind a S1WS6 with reverse proxy
Client ====== SunOne web server with Passthrough ====== .NET app server & web services.
The web server configuration (reverse proxy � libpassthrough.so) is configured and is working correctly when it comes to requesting normal pages, however a problem arises when the request is made either by:
1- Invoking a web service on the .Net tier, or
2- The .Net tier performs a server.transfer call within the same .net server (Page transfer)
Keep in mind that the .Net tier works fine when not accessed through the reverse proxy.
It seems that when a POST method is invoked, a Session Close is sent before data is sent back !!
We tried to isolate the problem from different angles but came up short, the http server log shows that the request was made
192.168.2.7 - - [14/Jul/2004:14:10:56 +0300] "POST /wavedms2.0/TestWebService/TestService.asmx HTTP/1.1" 100 0
Although response 100 indicates that it is waiting for more, while the web service error shows the following:
The underlying connection was closed: An unexpected error occurred on a receive.
at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at TestWebService.oWebService.MyWebSvc.HelloWorld()
at TestWebService.Form1.button1_Click(Object sender, EventArgs e)
In general, any page that uses POST method faces the same problem.I appreciate any help you can provide us with a solution on this issue.

The Application Server plugin, libpassthrough.so, was designed to connect Web Server to Application Server. Unfortunately, it does not work with IIS which sends unsolicited "HTTP/1.1 100 Continue" responses.

Down load NP_2020Player_WEB.plugin does not load ?

Trying to down load virtual kitchen software from Home Depot. Loads into the que but does not execute.

Hi, do you have a link to that software, I can't find it?
Is it needed for this site?
https://hdapps.homedepot.com/SATDMyProjectWeb/launchMP.do?&cm_sp=Kitchen-_-Frag1 _Kitchen_Planner-_-Go_To_My_Kitchen_Planner&cm_sp=socialmedia-_-ApronBlog-_-Kitc henVirtualPlannerIntro

Wireless does not load balance and Connection drops to 1Mbps at a certain time

Hi,
We had wireless LAN setup and it seems that every afternoon, the connection notification on their laptop drops to 1Mbps and slowness on the network is experienced. how can I identify the cause of this drop connection speed?
Also when one of the APs went down, the other nearby APs does not cover for the AP that went down, is it not supposed to cover for the downed AP?
BTW out setup is LAP with 4400 series WLC with VoWLAN running on it but on differed radio and SSID. Data is on b/g while VoWLAN is on A.

also i am seeing a lot of coverage hole detection on the logs.
is there any problems with the coverage of the APs? should I place additional APs to cover up the holes?If you have available funds/resources then putting additional APs won't hurt ... especially if one of the APs fail. Putting additional APs will also help distribute the clients.if it is cause by rouge AP how can i prevent it.
First, you have to know what radios is the AP using. For example, if the Rogue AP is using 802.11b then disable your 802.11b or use a different channel. I'm curious to know this is the case since the WLC would've used a different channel if a Rogue AP is broadcasting on similar channel (unless there's just too many Rogue APs using 802.11b).
you recommed any steps on how can i trace sudden surge of wireless use I'd like to identify/isolate how correct is my hypothesis that it's due to the sudden surge of wireless use. If this is the case, then I'd also like to know what application(s) are being used to overwhelm the wireless.

My Adobe Reader Plugin does not Load in Some Machines

Hi ,
I have created a Plugin for Adobe Reader 9 and Adobe Reader X.
As per the licence it has to work with both the version.
My plugin gets loaded in Adobe Reader 9 and Adobe Reader X versions only in development machines and few of the testing machines and My plugin works fine in these machine as per the task it has to do.
I tried to test My plugin in some machines which has same configuration as that of the machines where My plugin was able to load, but i could see My plugin loaded only in some machines and all other machine its not getting loaded.
Please some one let me know why is this happening and how to overcome this. I think i am missing something to load My Plugin but in some machines i was able to load My plugin without doing any settings other than copying My plugin's .api file to Reader Plugin's folder.
Thanks in advance. Please some one help me out.

Hi Irosenth ,
I was getting the below error when i saw the EventViewer.
Error : Activation context generation failed for "C:\Program Files\Adobe\Reader 9.0\Reader\plug_ins\MyPlugin.api". Dependent Assembly Microsoft.VC90.DebugCRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",typ e="win32",version="9.0.21022.8" could not be found. Please use sxstrace.exe for detailed diagnosis.
Now i added the required Redistributables while packing all the files and tested it in target machine..
All is Well Now..., Thanks you Very Much. ...
Thanks and Regards,
Chetan

Quicktime plugin does not load on FireFox 4.01 says Waiting for Video

When i go to Apple Trailers and view a trailer the popout box opens but message in window is " Waiting For Video ". Have re-installed quicktime still doesnt work, works ok in IE 8 still.
== This happened ==
Every time Firefox opened
== since installing Firefox 4.1

You are using the '''first beta release''' of Firefox 4; it is not meant for general public use. Not all plugins may yet be updated. Only experienced testers should be using that new beta release. When using an early beta release of any application, you can expect problems. You can go to the Quicktime site and/or Quicktime forums to see if there is information there concerning the compatibility of your version of Quicktime with Firefox 4.
'''''Other Issues''''': ~~red:You have installed plug-ins with known security issues. You should update them immediately.~~
'''Install/Update Adobe Reader for Firefox (aka Adobe PDF Plug-In For Firefox)''': your ver. 9.3.2; current ver. 9.3.3 (important security update release 06-29-2010; see: http://www.adobe.com/support/security/bulletins/apsb10-15.html)
~~red:Check your version here~~: http://www.mozilla.com/en-US/plugincheck/
See: http://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox#Installing_and_updating_Adobe_Reader
''You may be able to update from the Adobe Reader installed on your system'' instead of going to the Adobe site and downloading. Start > Program Files, find and click Adobe Reader to open, click Help, click Check for Updates.
''If you go to the Adobe site to download the current Adobe Reader:''
-'''use Firefox to download''' and '''SAVE to your hard drive''' (save to Desktop for easy access)
~~red:-See the images at the bottom left of this post to see the steps to take on the Adobe site~~
-exit Firefox (File > Exit)
-check to see that Firefox is completely closed (''Ctrl+Alt+Del, choose Task Manager, click Processes tab, if "firefox.exe" is on the list, right-click "firefox.exe" and choose End process, close the Task Manager window'')
-double-click on the Adobe Reader installer you just downloaded to install/update Adobe Reader
*'''NOTE: On Vista and Windows 7''' you may need to run the plugin installer as Administrator by starting the installer via the right-click context menu if you do not get an UAC prompt to ask for permission to continue (i.e nothing seems to happen). See this: http://vistasupport.mvps.org/run_as_administrator.htm
*'''NOTE for IE:''' Firefox and most other browsers use a Plugin. IE uses an ActiveX version. To install/update the IE ActiveX version, same instructions as above, except use IE to download the ActiveX installer. See: [[ActiveX]]
*Also see: http://kb.mozillazine.org/Adobe_Reader ~~red:'''''AND'''''~~ [[How do I edit options to add Adobe to the list of allowed sites]]

Outlook 2007 Plugin does not load

http://blogs.adobe.com/acom/2009/03/file_sharing_from_microsoft_ou.html - any solution?

Post your question in the forum for Acrobat.com.

Web Dispatcher not doing the load balancing on the portal

Hi Experts
I am having a production issue where the SAP web dispatcher is not doing the load balancing on the portal.
We have ESS/MSS portal with 1 Message server and 2 Application servers. The Web dispatcher is installed on the message server itself. Here is my Web disp profile file
Profile generated by sapwebdisp bootstrap
unique instance number
SAPSYSTEM = 16
add default directory settings
DIR_EXECUTABLE = .
DIR_EXECUTABLE = F:\usr\sap\<SID>\sapwebdisp
DIR_INSTANCE = .
Accessibility of Message Servers
rdisp/mshost = <hostname>.com
ms/http_port = 8111
#Log and Trace
rdisp/TRACE = 2
SAP Web Dispatcher Parameter
wdisp/auto_refresh = 120
wdisp/max_servers = 100
wdisp/shm_attach_mode = 6
configuration as per SAP note 538405
icm/max_conn = 7000
icm/max_sockets = 14000
icm/req_queue_len = 6000
icm/min_threads = 100
icm/max_threads = 300
mpi/total_size_MB = 500
mpi/max_pipes = 14000
wdisp/HTTPS/max_pooled_con = 7000
SAP Web Dispatcher Ports
icm/server_port_0 = PROT=HTTP,PORT=8888
SSL
icm/server_port_1 = PROT=ROUTER,PORT=443, TIMEOUT=60
SAP Web Dispatcher Web Administration
icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin,AUTHFILE=icmauth.txt
wdisp/enable_j2ee_groups = TRUE
wdisp/HTTPS/sticky_mask = 255.255.255.255
In my Web dispatcher Admin page, I see all the three application servers, however the requests are going to only 1 App server. We are using ENd to End SSL configuration for the web dispatcher.
We also have a reverse proxy in the landscape and reverse proxy is forwarding all the requests to the Web dispatcher. In Web disp Admin page>Dispatching Module>SSL End to END dispatching, I see only ONE table entry in the dispatching table and it is our Reverse Proxy.
As all the requests are coming from only one source (Reverse proxy), it seems to me that the sap web dispatcher is forwarding those to the same Application server every time.
Can anyone please advise ?
I also tried to configure logon group in NWA, the web dispatcher is detecting the logon group and all the app servers in the logon group. It still not doing the load balancing.
I would greatly appreciate any help.
Thanks
Viny

Vincent, can you please elaborate more ? Is the web dispatcher not able to recognize stateful and stateless application requests ?
I saw that the procedure for configuring SSL Termination on Web dispatcher is long and complicated and looks like SAP web dispatcher needs to have SSL certificate of its own. As we have no ABAP servers and only Java servers, I can not even create the PSEs using STRUST (as described in SAP help -http://help.sap.com/saphelp_nw70ehp1/helpdata/en/48/99c388d7c46bb9e10000000a42189d/frameset.htm
We already have SSL certificates for Java App servers.
I suppose there should be a way for web dispatcher to identify the incoming requests and forward to appropriate application servers.
Any help is much appreciated.
Thanks
Viny

FireFox does not load any website when setting up a working proxy

When i set a proxy for firefox , any proxy ... firefox does not load any thing , it comes with server not found in no time , fire fox is not even searching for it !

I read those before .. but my problem is not any one of them !
when i set proxy on firefox it does not work !
when i set proxy on IE then setting firefox to system proxy it work !!

Applet does not load using java 1.5 through reverse proxy with certific...

Hi,
we have the following problem:
When using java 1.5 in our browser, our applet does not load. Using java 1.4.2 it works. It also works using java 1.5.0 using another reverse proxy.
The differences between the 2 reverse proxies (one works, one works not) we use is that the one through which the applet does not load has a certificate installed that is not for its hostname. Can this be the reason the applet does not load? Where can I find information about the sandbox of java 1.5.0 concerning these issues. Are there any docs of the security restrictions imposed by java 1.5.0 sandbox?
Greetings,
Tim

Ok,
the solution to this specific problem was a misconfigured reverse dns lookup.
Greets,
Tim

When using a proxy server at work, Deezer page does not load normally?

When using a proxy server at work, Deezer page does not load normally, but when I go home and use connection without proxy, everything is fine.
It loads, and some features on the website work, but the look is not the same. Over the proxy it shows just text on the left side of the screen and I can't choose some of the options.
When I go home and use my home connection without proxy, there are no problems, everything is OK.
Could you please solve this?

I found that after Firefox v29, a LOT of my settings and 
add-ons were changed / reset. Try this;
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
 While you are in safe mode; 
'''''Firefox Options > Advanced > General'''''. 
Look for and turn off '''Use Hardware Acceleration'''. 
Then check ALL of your settings. Browser and add-ons. Then restart.

Clustering not Load balancing on solaris with apache

apache weblogic plugin does not do round-robin , it's kind of random when
 direct the request to the appserver. anyone has seen this problem?
 weblogic5.1 sp9. solaris 2.7 jre1.3.1 rc2


Actually, the random load-balancing when using Apache is caused by the fact
 that Apache (<2.0) spawns multiple processes, so single Apache instance
 will have several plug-in instances running.
 Mike Reiche <[email protected]> wrote:
 > You are using the weblogic plug-in, aren't you?
 > Only new requests are round-robinned. A second request from the same browser
 > is sent to the same server it hit the first time (sticky load-balancing).
 > Mike
 > "Tony Lu" <[email protected]> wrote:
 >>apache weblogic plugin does not do round-robin , it's kind of random
 >>when
 >>direct the request to the appserver. anyone has seen this problem?
 >>
 >>weblogic5.1 sp9. solaris 2.7 jre1.3.1 rc2
 >>
 >>
 Dimitri

Cluster not load-balancing, ideas?

I've been struggling to identify why my JMS producers are not load-balancing against a remote cluster.
          I've ruled out the producer as being the problem (I see the same non-load-balancing behavior regardless of what I use to create messages - Hermes, ALSB, simple Java producer...) I also don't think the JMS Connection Factory config is the problem, judging by the help I've received from folks over on the jms forum.
          I believe something is wrong with our cluster setup because in addition to the problem I just mentioned, we also are not seeing JNDI entries propagate to all managed servers - for example, if I create one jms queue on m1, that queue does not appear in the jndi tree on m2.
          I've been trying to find any documentation on what settings I should look at to verify the cluster configuration. If I go through the WLS console and look at the Cluster settings, I see both managed servers there, is there some other place that the configuration could be messed up?
          Added 6/11, 9:30 am:
          We're focusing on multicast now as the most likely problem. Can anyone tell me whether clusters on the same multicast address but different ports will interfere with each other? It looks like the infrastructure team has set up 5 clusters like that (same multicast address in each cluster, but different ports).
          We've got a ticket open with BEA but it's been two weeks now and nothing except requests for more information.
          Any ideas/help are much appreciated!
          Meghan
          Edited by pietila at 06/11/2008 7:38 AM

Meghan Pietila wrote:
          > I've been struggling to identify why my JMS producers are not load-balancing against a remote cluster.
          >
          > I've ruled out the producer as being the problem (I see the same non-load-balancing behavior regardless of what I use to create messages - Hermes, ALSB, simple Java producer...) I also don't think the JMS Connection Factory config is the problem, judging by the help I've received from folks over on the jms forum.
          >
          > I believe something is wrong with our cluster setup because in addition to the problem I just mentioned, we also are not seeing JNDI entries propagate to all managed servers - for example, if I create one jms queue on m1, that queue does not appear in the jndi tree on m2.
          >
          > I've been trying to find any documentation on what settings I should look at to verify the cluster configuration. If I go through the WLS console and look at the Cluster settings, I see both managed servers there, is there some other place that the configuration could be messed up?
          >
          > Added 6/11, 9:30 am:
          > We're focusing on multicast now as the most likely problem. Can anyone tell me whether clusters on the same multicast address but different ports will interfere with each other? It looks like the infrastructure team has set up 5 clusters like that (same multicast address in each cluster, but different ports).
          >
          > We've got a ticket open with BEA but it's been two weeks now and nothing except requests for more information.
          >
          > Any ideas/help are much appreciated!
          >
          > Meghan
          >
          > --
          > Edited by pietila at 06/11/2008 7:38 AM
          You could be right. I think we have had problems where the same IP but
          different ports were used for multicast. This is on 8.1 though.
          I think as a rule, it's best to have a different ip and port for each
          cluster.
          Also - can you be sure that no one else is using the multicast addresses
          on the network for anything else - we had someone bring up a test
          cluster using our addresses which caused a few issues and took a while
          to find! We also have security cameras which also use multicast, which
          if they are using the same address/port can cause issues!
          We're using 239.192.1.4:8001 for one cluster and 239.192.1.3:7001 for
          the other - I think it's best to keep those as different as you can.
          In 8.1, there is also the multicast monitor utility - there's a support
          pattern on e-support on how to diagnose it. I've found this useful in
          the past when I've suspected a cluster issue.
          https://support.bea.com/application_content/product_portlets/support_patterns/wls/MulticastErrorsPattern.html
          Check also that you're using a valid range for the address - we weren't
          for a while and had odd problems from time to time.
          There are also cluster debug flags available which you'll see listed in
          the support document.
          Are you seeing dropped multicast packets?
          Hope that helps.
          Pete

WLS proxy plugin does not load balance

Similar Messages

Maybe you are looking for