IPlanet 4.1 - Weblogic 5.1 Clustering

Query 1:
          The libproxy.so proxy plugin seems to slow down the response. Anyway to tune it?
          Query 2:
          I have a servlet in iPlanet which upon receiving the request manages the Session and pass the request to the Weblogic Cluster using the proxy plugin with the help of RequestDispatcher. But i get an error in the iPlanet Server log as
          wl-proxy reports: IO error reading client POST data at line 314 of proxy.cpp, system error: 'Resource temporarily unavailable'
          How do i get rid of this?

Similar Messages

Weblogic 6.0 clustering on Solaris

          I want to setup Weblogic 6.0 clustering on two solaris boxes. I do have a Weblogic
          cluster license. My questions are
          1. Where do I get a multicast address from?
          2. The two Solaris boxes are in my DMZ with private IP's is it ok or do I need to
          have public IP's.
          3. How do I setup the cluster.
          4. Any know issues with weblogic 6.0 clustering on Solaris 2.7.
          Thanks
          Viren


          Viren wrote:
          > I want to setup Weblogic 6.0 clustering on two solaris boxes. I do have a Weblogic
          > cluster license. My questions are
          >
          > 1. Where do I get a multicast address from?
          From your sys admin.
          Or use the default one. i.e. 237.0.0.1
          >
          > 2. The two Solaris boxes are in my DMZ with private IP's is it ok or do I need to
          > have public IP's.
          As long as they are static IP's , you should be fine
          >
          > 3. How do I setup the cluster.
          Read docs
          http://e-docs.bea.com/wls/docs60/cluster/index.html
          >
          > 4. Any know issues with weblogic 6.0 clustering on Solaris 2.7.
          >
          Not yet :) :)
          >
          > Thanks
          >
          > Viren

IPlanet plugin for WebLogic not working - cannot find function named wl_init

Hi,
I have been having this issue for the last two days. It relates to
IPlanet plugin for WbLogic. Following is the error I get:
[17/Apr/2003:11:41:26] config ( 2069): func_exec reports: cannot find
function named wl_init [17/Apr/2003:11:41:26] failure ( 2069):
Configuration initialization failed: Error running init function
wl_init: unknown error
Here is my environment:
SUN E-250 Server
Solaris 8.0 with recommended Patch-set
iPlanet-WebServer-Enterprise/6.0SP4
Web logic 7 SP2
Here is how I have edited magnus.conf to include the following lines:
Init fn="load-modules"
shlib="/usr/iplanet/servers/plugins/lib/libproxy.so" func
s="wl_proxy,wl_init" Init fn="wl_init"
#ServerRoot /usr/iplanet/servers/https-cablevision5
..... rest of the file ..........
As you have noticed I have put everything regrding plugin in one line.
I have also used various other combinations of breaking this line
into multiple lines but no use.
What I have also noticed is that if I change the name of libproxy.so
to some other arbitrary file name that does not exist, even then the
error message does not change. So it looks like the library is not
even being loaded.
The library file is owned by root and has permissions to read and
execute for everyone.
I will really appreciate is I can get any help. I have noticed that
there are folks who have posted similar problem, no one gave an answer
to them. Please be more generous this time in furnishing with your
opinion.
Thanks
Jamal

I will try and be as descriptive as possible. I hate the posts that
dont give any help.
Anyway you did not mention anything about your obj.conf configuration.
Here is how it should look, e.g.:
Init fn="load-modules" funcs="wl-proxy,wl-init"\
shlib=/usr/local/netscape/plugins/libproxy.so
Init fn="wl-init"
<Object name="weblogic" ppath="*/weblogic/*">
Service fn=wl-proxy WebLogicHost=myweblogic.server.com\
WebLogicPort=7001 PathTrim="/weblogic"
</Object>
Check the following url:
http://www.weblogic.com/docs51/admindocs/nsapi.html
Ok,so you probably have those in there. If not, then please check
that you have directives in obj.conf and the magnus.conf as well.
Again the service line should be all one line.
Next, are you proxying by path or by suffix. I.E. do you want
everything to go to weblogic or just .jsp. You can configure either
way. This will change your directive. Specifically ppath means proxy
by path. To proxy by file extension (or what i call suffix) then look
at this url for specifics:
http://www.weblogic.com/docs51/admindocs/nsapi.html#exts (notice the
anchor in the link)
Post how it goes...
a.r.
[email protected]
[email protected] (Jamal Najmi) wrote in message news:<[email protected]>...
Hi,
I have been having this issue for the last two days. It relates to
IPlanet plugin for WbLogic. Following is the error I get:
[17/Apr/2003:11:41:26] config ( 2069): func_exec reports: cannot find
function named wl_init [17/Apr/2003:11:41:26] failure ( 2069):
Configuration initialization failed: Error running init function
wl_init: unknown error
Here is my environment:
SUN E-250 Server
Solaris 8.0 with recommended Patch-set
iPlanet-WebServer-Enterprise/6.0SP4
Web logic 7 SP2
Here is how I have edited magnus.conf to include the following lines:
Init fn="load-modules"
shlib="/usr/iplanet/servers/plugins/lib/libproxy.so" func
s="wl_proxy,wl_init" Init fn="wl_init"
#ServerRoot /usr/iplanet/servers/https-cablevision5
..... rest of the file ..........
As you have noticed I have put everything regrding plugin in one line.
I have also used various other combinations of breaking this line
into multiple lines but no use.
What I have also noticed is that if I change the name of libproxy.so
to some other arbitrary file name that does not exist, even then the
error message does not change. So it looks like the library is not
even being loaded.
The library file is owned by root and has permissions to read and
execute for everyone.
I will really appreciate is I can get any help. I have noticed that
there are folks who have posted similar problem, no one gave an answer
to them. Please be more generous this time in furnishing with your
opinion.
Thanks
Jamal

IPlanet vs. Weblogic security

Hi,
I've recently joined a project where security is paramount. We are very
concerned about access to personal data from unauthorized external sources
and also from rogue developers and/or support staff.
The proposed architecture is as follows: -
An external public accessible web server (iPlanet WebServer 4) connects
through a firewall to an internal web server (iPlanet WebServer 4) which
connects to a Unix hosted Sybase database via JDBC. All business logic is
contained within Servlets and support classes running on the internal
server.
A high percentage of the database is encrypted/decrypted using a key that is
hardware generated/controlled.
All communications with browser clients is via SSL.
The guy who designed the system has said that there is a SSL weakness in the
public webserver side i.e. the browser establishes a SSL connection with the
external server, which then establishes a second SSL connection across the
firewall with the internal server.
The problem seems to be that the webserver must decrypt data from the first
SSL connection before encrypting it for the second SSL connection. While the
data is decrypted it is exposed in memory on a public server to potential
hackers.
Is this a specific problem with iPlanet or a problem common to all
external/firewall/internal webservers??
Have Weblogic any solutions??
I would really appreciate any comments or references about this.
A second concern is unauthorized access to the database from support staff.
Although the data is encrypted, a programmer could spoof the hardware device
for the key.
Have Weblogic any comments or solutions?
Another concern (which maybe more appropriate in a different forum) is the
concentration of business logic in the Servlets and support classes. I
believe that this approach was taken to improve performance. At what point
should EJBs be used to encapsulate some of the servlet business logic? Are
there any guidelines?
Many thanks
Ray

r> The problem seems to be that the webserver must decrypt data from
r> the first SSL connection before encrypting it for the second SSL
r> connection. While the data is decrypted it is exposed in memory on
r> a public server to potential hackers.
r> Is this a specific problem with iPlanet or a problem common to all
r> external/firewall/internal webservers??
This is common to all web servers on all platforms. You can only
really avoid it by passing the SSL connection straight through to the
back end box without decrypting it, but that makes the existence of
the box in the middle pointless.
r> A second concern is unauthorized access to the database from
r> support staff. Although the data is encrypted, a programmer could
r> spoof the hardware device for the key.
Eh?
<b

More questions about WebLogic 7.0 clustering

 Hi Folks,
 I have weblogic 7.0 spX in my environment.
 Machine A(7001) contains AdminServer and Machine B(7002),C(7002) are managed servers.The
 entire configuration is in Machine A config.xml file.The config.xml file of Machine
 B and C have only server information.
 I created a cluster in Admin Box A and added Managed B and C into the cluster.Using
 iPlanet as a web server,"Cluster Address" have machine B and C ip:port.
 Q1: The cluster information is available in only AdminServer A config.xml file.If
 the whole box(sun solaris) goes down, what will happen to managed servers and
 cluster?
 Q2:We deploy an .ear file in Admin Server A and restart the service.As per the
 weblogic document, it should deploy the .ear automatically on managed box's.It
 does.But I don't see the whole .ear file in Machine B and C.Instead I am seeing
 the content of .ear file in exploded format.Why?
 Thank You,
 - Lara


 Hi Lara,
 There is patch available for this for 7.0 and this is fixed in sp2 and higher.
 If you are in the lower version just go to ".internal" folder in the managed server
 boxes and delete the console.war (after everytime you restart your mgd severs).
 I know this is dirty. but this is a work around
 Joe
 "Lara Man" <[email protected]> wrote:
 >
 >Thanks, Aravind.
 >
 >I do not want to enable independence mode due to security reasons.Please
 >check
 >http://xforce.iss.net/xforce/xfdb/12567
 >
 >Any other way?
 >
 >"Aravind Krishnasamy" <[email protected]> wrote:
 >>Weblogic has an option to enable MSI(Managed server independence). By
 >>enabling this feature on your managed server b & c, admin server will
 >>push
 >>config.xml, fileRelam.properties, SerializedSystemIni.dat etc., to all
 >>the
 >>managed server. Make sure you enable this functionality on only instance
 >>per
 >>sun server.
 >>
 >>When the admin server goes it should not affect the fuctionality of
 >running
 >>MS, since as described before all the information are cached. You cannot
 >>modify any configuration at this point of time. Due to MSI enabled you
 >>should be able to restart the managed server.
 >>
 >>Aravind
 >>
 >>> 2) We explode it to get access to the .jar files inside.
 >>>
 >>> Sam
 >>>
 >>> Lara Man wrote:
 >>> > Hi Folks,
 >>> >
 >>> > I have weblogic 7.0 spX in my environment.
 >>> >
 >>> > Machine A(7001) contains AdminServer and Machine B(7002),C(7002)
 >>are
 >>managed servers.The
 >>> > entire configuration is in Machine A config.xml file.The config.xml
 >>file
 >>of Machine
 >>> > B and C have only server information.
 >>> >
 >>> > I created a cluster in Admin Box A and added Managed B and C into
 >>the
 >>cluster.Using
 >>> > iPlanet as a web server,"Cluster Address" have machine B and C ip:port.
 >>> >
 >>> > Q1: The cluster information is available in only AdminServer A
 >>config.xml file.If
 >>> > the whole box(sun solaris) goes down, what will happen to managed
 >>servers and
 >>> > cluster?
 >>> >
 >>> > Q2:We deploy an .ear file in Admin Server A and restart the service.As
 >>per the
 >>> > weblogic document, it should deploy the .ear automatically on managed
 >>box's.It
 >>> > does.But I don't see the whole .ear file in Machine B and C.Instead
 >>I am
 >>seeing
 >>> > the content of .ear file in exploded format.Why?
 >>> >
 >>> > Thank You,
 >>> >
 >>> > - Lara
 >>>
 >>
 >>
 >

Iplanet LDAP with Weblogic

Hello All,
I forgot the subject line. I'm trying to set up iPlanet Directory 4.1 with
WebLogic 5.1 Sp3 on Solaris7. Weblogic will see the users I specify
(username,groupname) but not
the group, additionally it will allow you to login if you know the
username and anypassword. I get the following error when loading the
http://localhost:port/AdminRealm. I've gone through the LDAP
properties file a million times. Lastly, now it does a core - dump
while trying to start.
Please help.
Richard
################# Begin Error ###############################3
java.lang.NullPointerException
at weblogic.security.ldaprealm.LDAPDelegate.magicBunny(Compiled Code)
at weblogic.security.ldaprealm.LDAPDelegate.addGroupMember
(Compiled Code)
at weblogic.security.ldaprealm.LDAPDelegate.getGroupMembers
(Compiled Code)
at weblogic.security.ldaprealm.LDAPDelegate.getGroupMembers
(LDAPDelegate.java:518)
at weblogic.security.ldaprealm.LDAPRealm.getGroupMembersInternal
(LDAPRealm.java:81)
at weblogic.security.acl.AbstractListableRealm.getGroupMembers
(AbstractListableRealm.java:302)
at weblogic.security.acl.FlatGroup.ensureFreshness
(FlatGroup.java:149)
at weblogic.security.acl.FlatGroup.members(FlatGroup.java:236)
at admin.AdminRealm.composePage(Compiled Code)
at admin.AdminServlet.service(AdminServlet.java:257)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at
weblogic.servlet.internal.ServletStubImpl.invokeServlet
(ServletStubImpl.java:123)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet
(ServletContextImpl.java:744)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet
(ServletContextImpl.java:692)
at weblogic.servlet.internal.ServletContextManager.invokeServlet
(ServletContextManager.java:251)
at weblogic.socket.MuxableSocketHTTP.invokeServlet
(MuxableSocketHTTP.java:363)
at weblogic.socket.MuxableSocketHTTP.execute
(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(Compiled Code)

I have the same requirement too. I have been looking at many sources and havent
come across any that mentions anything related to this. If you come across anything
please do let me know.
Regards
Vijay
"Licheng" <[email protected]> wrote:
>
I also face the similar problem. In our case, one of the business requirements
for the authentication process is that when a user is authenticated,
but his password
expires, the system should force the user to change password.
With JAAS and WebLogic 7.0, I don't know the standard or "preferred"
approach
to this problem
regards
Licheng

WebLogic 7.0 & WebLogic 6.1 Clusters on the same Sun Machine

          HI All !!
          can we have two different versions of Weblogic running on same machine in different
          clusters i.e. Weblogic 6.1 on one cluster with a different domain and Weblogic
          7.0 on another cluster with a different domain.
          Plzz reply ASAP...
          Thanx
          Nitesh


Yes, you can.
          Nitesh wrote:
          > HI All !!
          >
          > can we have two different versions of Weblogic running on same machine in different
          > clusters i.e. Weblogic 6.1 on one cluster with a different domain and Weblogic
          > 7.0 on another cluster with a different domain.
          >
          > Plzz reply ASAP...
          >
          > Thanx
          >
          > Nitesh
          >
          >

Weblogic 5.1 Clusters

I am trying to find out information regarding to the setup of a Weblogic 5.1
          Cluster.
          I am in the process of reading the online docs as a start....
          Base components being currently utilised on 4.5.1 are:
          - Solaris version 2.6
          - Netscape version 3.6
          - Database version Oracle, 8i
          - JDK 1.2.1_03a
          Questions:
          What is the most popular cluster type used by vendors?
          Are there any specific requirements that define what is best for what
          circumstance?
          What implications exist if any for the clustered environment?
          Is there anyone out there that I would be able to speak regarding algorithms
          they may have implemented?
          Anyone have any statistical information about performance / load balancing
          etc?
          Anyone know any resources that may be able to suggest for me to investigate
          in the specific area of 5.1 clustering, or can anyone outlay any experiences
          please?
          I would really like to obtain stats / benchmark performance of differences
          between 4.5.1 and 5.1 as well?
          any help appreciated?
          Simon


I am trying to find out information regarding to the setup of a Weblogic 5.1
          Cluster.
          I am in the process of reading the online docs as a start....
          Base components being currently utilised on 4.5.1 are:
          - Solaris version 2.6
          - Netscape version 3.6
          - Database version Oracle, 8i
          - JDK 1.2.1_03a
          Questions:
          What is the most popular cluster type used by vendors?
          Are there any specific requirements that define what is best for what
          circumstance?
          What implications exist if any for the clustered environment?
          Is there anyone out there that I would be able to speak regarding algorithms
          they may have implemented?
          Anyone have any statistical information about performance / load balancing
          etc?
          Anyone know any resources that may be able to suggest for me to investigate
          in the specific area of 5.1 clustering, or can anyone outlay any experiences
          please?
          I would really like to obtain stats / benchmark performance of differences
          between 4.5.1 and 5.1 as well?
          any help appreciated?
          Simon

Can IPlanet talk to Weblogic 5.1 ?

IPlanet can talk to WebLogic 6.1 . We still have some old WebLogic 5.1 server
and applications on HP-UX. I am wondering if IPlanet can also talk to WebLogic
5.1 ??

What model of iPod touch do you have and what version of iOS is running on it now? And what is the exact nature of the problem, including error messages if any?

Question: WebLogic 4.0 Clustering on Solaris 2.6

I've read through several of the postings about Clustering Weblogic Servers
 but there are still a couple of points that aren't clear. We have a Java application
 that is going to use two Weblogic Application servers to go against a Sybase
 database. We decided to use two Single CPU Weblogic servers in a clustered
 configuration for load balancing and in the event one goes down or needs to
 be taken off line. Each server currently has two NIC's. One NIC is connected
 to the LAN where our client PC's are located and the second NIC is going to
 connect to an isolated Network for the Multicast communication and an NFS
 mount for the Weblogic servers. Eventually we might add a third NIC in each
 server that will connect to the network that the Database servers reside on but
 for now they will use the same NIC as the Client PC's.
 The part that isn't clear is the portion about the Multicast addresses. In some
 messages people try to assign and bind the Mutlicast address to the NIC and
 in others they just use a normal IP address and it looks as if the Mutlicast
 address is just configured in the Weblogic properties file. I would like to use
 the second NIC in the servers for the NFS mount and the Multicast communication
 between the servers. Is there anything special to configure this on a SUN solaris
 server? If you have any ideas please let me know.
 Regards,
 Robert


There is a bug report that makes me think this is broken in Solaris 2.6, but
 in theory the following should work:
 Get rid of '/usr/sbin/route add -interface -netmask "240.0.0.0" "224.0.0.0"
 "$mcastif"' in /etc/init.d/inetsvc which sets the "standard" multicast
 address space starting at 224.0.0.0 with a mask of 240.0.0.0.
 Add to your taste:
 /usr/sbin/route add -interface -netmask "255.0.0.0" "235.0.0.0"
 "host1.foo.com"
 /usr/sbin/route add -interface -netmask "255.0.0.0" "236.0.0.0"
 "host2.foo.com"
 /usr/sbin/route add -interface -netmask "255.0.0.0" "237.0.0.0"
 "host3.foo.com"
 Where host1.foo.com, host2.foo.com, etc. are in your local hosts file and
 are set to the local IP address of the interface you want to bind each
 multicast class C address space to.
 netstat -r should give you the visual confirmation that things are
 configured correctly...
 Try snoop on a different machine to see if things are working on the wire:
 snoop -d hme0 multicast | grep -v ETHER
 Where hme0 is the ethernet interface in the proper Ethernet layer 2 domain
 that you want to analyze. Make sure you see the traffic you expect.
 Jim Hayes
 mailto://[email protected]
 Vinny Carpenter <[email protected]> wrote in message
 news:[email protected]...
 > Hi Robert. If you wish to keep the mutlicast traffic off your main
 network, why don't you just move the
 > WebLogic servers in their own network segment. We keep all of our
 WebLogic servers in their own network
 > segment and it works great. Hope this helps
 >
 > --Vinny
 >
 > "Robert L. Doerr" wrote:
 >
 > > I got a message from our Local Weblogic rep and he said (according to
 his inside support)
 > > that what I am trying to do can not be done. Apparently the Mutlicast
 traffic has to use the
 > > same NIC that the clients use to access the WebLogic Server. There is
 no way to use an
 > > isolated LAN for the Mutlicast packets like I originally wanted to do.
 I can still use the second
 > > NIC to go directly to the Database servers on the back end though. If
 anyone does know of
 > > a way to make the Muticast packets use a specific NIC please let me
 know.
 > >
 > > Regards,
 > >
 > > Robert
 > >
 > > "Robert L. Doerr" wrote:
 > >
 > > > Do you mean that the WLS looks for Multicast boradcasts on the same
 port it expects to
 > > > get requests from the clients? Without clustering enabled the WLS is
 listening on port
 > > > 7003 on the Primary NIC for communication with our Java application on
 the client. I thought
 > > > that the Muticast traffic was on a different port. If it uses the
 same port then how can we
 > > > tell the WLS to use the Primary NIC for communication and the second
 NIC strictly for
 > > > the Multicast traffic. I'm still not clear on this issue.
 > > >
 > > > Regards,
 > > >
 > > > Robert
 > > >
 > > > Sazi Temel wrote:
 > > >
 > > > > Hi Robert, you can use two or more NICs per server or you can bind
 multiple address to the same
 > > > > NIC. Every WLS server that is member of the cluster (regardless a
 server has single or multiple
 > > > > NICs, regardless if a WLS server has its own IP bind to its own NIC
 or a NIC used by multiple WLS
 > > > > servers) should listen the same port, you cannot have servers in a
 cluster listening different
 > > > > ports. Once the servers are configured being part of the cluster
 they will use the multicasting
 > > > > to communicate with each other. Note also that you should have
 license for the cluster
 > > > > configuration, you cannot combine multiple license files to make a
 cluster license file. Hope
 > > > > this will help.
 > > > >
 > > > > Regards,
 > > > > --Sazi
 > > > >
 > > > > "Robert L. Doerr" wrote:
 > > > >
 > > > > > I should clarify this a little better:
 > > > > >
 > > > > > Each Weblogic server has a NIC that it will use to communicate
 with all of the clients
 > > > > > on the LAN. The address of that NIC matches the one in the
 license file and it is
 > > > > > expecting requests to come in on port 7003. By default it looks
 as if the WebLogic
 > > > > > server looks for Multicasts on port 7001 of that same NIC. Since
 don't want that
 > > > > > Multicast traffic on the regular Network with the clients (It has
 no reason being there)
 > > > > > we want all the Multiport traffic to go in and out of another NIC
 with a different Network
 > > > > > address. Unless that second address is in the License file can we
 do this? I haven't
 > > > > > seen any messages or notes relating to this issue. It sounds like
 most people only
 > > > > > use one NIC per server.
 > > > > >
 > > > > > Regards,
 > > > > >
 > > > > > Robert
 > > > > >
 > > > > > "Robert L. Doerr" wrote:
 > > > > >
 > > > > > > Thanks, for the response. Can you control what NIC's that
 Multicast braodcasts
 > > > > > > will use? We would like to keep all of the Multicast traffic
 off the normal LAN and
 > > > > > > use the extra NIC's for this.
 > > > > > >
 > > > > > > Robert
 > > > > > >
 > > > > > > Sazi Temel wrote:
 > > > > > >
 > > > > > > > Your server should bind to a "normal" IP address... Use
 multicast address for clustered
 > > > > > > > servers communications, in most case you should do nothing for
 multicast address since if
 > > > > > > > you do not assign one WLS will use the default one
 (237.0.0.1).
 > > > > > > >
 > > > > > > > --Sazi
 > > > > > > >
 > > > > > > > "Robert L. Doerr" wrote:
 > > > > > > >
 > > > > > > > > I've read through several of the postings about Clustering
 Weblogic Servers
 > > > > > > > > but there are still a couple of points that aren't clear.
 We have a Java application
 > > > > > > > > that is going to use two Weblogic Application servers to go
 against a Sybase
 > > > > > > > > database. We decided to use two Single CPU Weblogic servers
 in a clustered
 > > > > > > > > configuration for load balancing and in the event one goes
 down or needs to
 > > > > > > > > be taken off line. Each server currently has two NIC's.
 One NIC is connected
 > > > > > > > > to the LAN where our client PC's are located and the second
 NIC is going to
 > > > > > > > > connect to an isolated Network for the Multicast
 communication and an NFS
 > > > > > > > > mount for the Weblogic servers. Eventually we might add a
 third NIC in each
 > > > > > > > > server that will connect to the network that the Database
 servers reside on but
 > > > > > > > > for now they will use the same NIC as the Client PC's.
 > > > > > > > >
 > > > > > > > > The part that isn't clear is the portion about the Multicast
 addresses. In some
 > > > > > > > > messages people try to assign and bind the Mutlicast address
 to the NIC and
 > > > > > > > > in others they just use a normal IP address and it looks as
 if the Mutlicast
 > > > > > > > > address is just configured in the Weblogic properties file.
 I would like to use
 > > > > > > > > the second NIC in the servers for the NFS mount and the
 Multicast communication
 > > > > > > > > between the servers. Is there anything special to configure
 this on a SUN solaris
 > > > > > > > > server? If you have any ideas please let me know.
 > > > > > > > >
 > > > > > > > > Regards,
 > > > > > > > >
 > > > > > > > > Robert
 > > > > > >
 > > > > > > --
 > > > > > > ------------------------------------------------------------
 > > > > > > Robert L. Doerr (MCNE, MCP, A+)
 > > > > > > 26308 Cubberness
 > > > > > > St. Clair Shores, MI 48081
 > > > > > > Tel: (810) 777-1313
 > > > > > > e-mail: [email protected]
 > > > > > > WEB Site: http://www.robotswanted.com
 > > > > > > "Keeping Personal Robots alive!"
 > > > > > > Heathkit HEROS (Jr, 1, & 2000), Androbots, & MAXX STEELE.
 > > > > > > ------------------------------------------------------------
 > > > > >
 > > > > > --
 > > > > > ------------------------------------------------------------
 > > > > > Robert L. Doerr (MCNE, MCP, A+)
 > > > > > 26308 Cubberness
 > > > > > St. Clair Shores, MI 48081
 > > > > > Tel: (810) 777-1313
 > > > > > e-mail: [email protected]
 > > > > > WEB Site: http://www.robotswanted.com
 > > > > > "Keeping Personal Robots alive!"
 > > > > > Heathkit HEROS (Jr, 1, & 2000), Androbots, & MAXX STEELE.
 > > > > > ------------------------------------------------------------
 > > >
 > > > --
 > > > ------------------------------------------------------------
 > > > Robert L. Doerr (MCNE, MCP, A+)
 > > > 26308 Cubberness
 > > > St. Clair Shores, MI 48081
 > > > Tel: (810) 777-1313
 > > > e-mail: [email protected]
 > > > WEB Site: http://www.robotswanted.com
 > > > "Keeping Personal Robots alive!"
 > > > Heathkit HEROS (Jr, 1, & 2000), Androbots, & MAXX STEELE.
 > > > ------------------------------------------------------------
 > >
 > > --
 > > ------------------------------------------------------------
 > > Robert L. Doerr (MCNE, MCP, A+)
 > > 26308 Cubberness
 > > St. Clair Shores, MI 48081
 > > Tel: (810) 777-1313
 > > e-mail: [email protected]
 > > WEB Site: http://www.robotswanted.com
 > > "Keeping Personal Robots alive!"
 > > Heathkit HEROS (Jr, 1, & 2000), Androbots, & MAXX STEELE.
 > > ------------------------------------------------------------
 >

Does killing an instance of weblogic in a clustered environment hurt?

I just got moved to a group responsible for web hosting within the company that I work for. I was looking at how they do things with regards to weblogic and deploying/trouble shooting apps. They have many apps, each developed by a different person. All of the apps are deployed under the same clustered two instances of weblogic. To redeploy they kill weblogic then restart it, one instance at a time. They tell me that since weblogic is clustered killing one instance doesn't affect the users on the site. Also, they frequently do thread dumps saying that this doesn't affect the users experience either. Is this correct?

Did anyone found a solution to this problems. I have been seeing this issues for day I can figure it out.
It seems to be some sort of issue with credentials between my admin server and managed server1
Max Monterrey

Weblogic 9 vertical clustering

I have FR web deployed in the Weblogic 9, which is a part of Oracle EPM. Need to do vertical clustring.
Can any one tell me the steps of creating 3 instance in the same server.

Create a cluster (http://docs.oracle.com/cd/E13222_01/wls/docs92/ConsoleHelp/taskhelp/clusters/CreateCluster.html)
Create a machine (http://docs.oracle.com/cd/E13222_01/wls/docs92/ConsoleHelp/taskhelp/machines/ConfigureMachines.html)
Create three servers (http://docs.oracle.com/cd/E13222_01/wls/docs92/ConsoleHelp/taskhelp/domainconfig/CreateManagedServers.html)
Add the servers to the machine (http://docs.oracle.com/cd/E13222_01/wls/docs92/ConsoleHelp/taskhelp/machines/AssignServerInstancesToMachines.html) and cluster (http://docs.oracle.com/cd/E13222_01/wls/docs92/ConsoleHelp/taskhelp/clusters/AssignServersToClusters.html)
Bring Your Own Laptop Knowledge Sessions: WebLogic 12c - http://middlewaremagic.com/weblogic/?p=7854

WebLogic Express and Clustering

Does weblogic express offer the same clustering options as weblogic server
 with regard to HttpSession replication?
 I'm looking at an architecture where the web container is separated from the
 ejb container (for security reasons) and would like to avoid paying the
 higher WLS license.
 - Avi
 s/\be(\w+)/e-\1/g;


Yes, we just added WLX clustering as a package available. Contact
 [email protected] for more information.
 Thanks,
 Michael
 Michael Girdley
 Product Manager, WebLogic Server & Express
 BEA Systems Inc
 "Avi Kivity" <[email protected]> wrote in message
 news:[email protected]..
 > Does weblogic express offer the same clustering options as weblogic server
 > with regard to HttpSession replication?
 >
 > I'm looking at an architecture where the web container is separated from
 the
 > ejb container (for security reasons) and would like to avoid paying the
 > higher WLS license.
 >
 >
 > - Avi
 > --
 > s/\be(\w+)/e-\1/g;
 >
 >
 >

Combined-tier WebLogic Cluster (two clustered instances)

Hi guys,
How can I realise it?
[http://lowerthan60.files.wordpress.com/2010/10/cluster_1.jpg]
Is it right steps?
[http://middlewaremagic.com/weblogic/?p=971]
Load Balancer and main domain working fine between two IP (instances).
Edited by: 867750 on Jun 23, 2011 5:44 AM

 In the case of WL6 and WL7 clustering, if the requests from the same user jump
 around different instances, we experience this kind of session loss problem very
 frequently. I am not sure if this is the same case for WL5. The idea is, find
 a way to make sure the requests from the same use always hit the same instance
 unless it is dwon.
 "Cameron Purdy" <[email protected]> wrote:
 >Are you using cookies or URL encoding?
 >
 >Peace,
 >
 >Cameron Purdy
 >Tangosol, Inc.
 >http://www.tangosol.com/coherence.jsp
 >Tangosol Coherence: Clustered Replicated Cache for Weblogic
 >
 >
 >"Sam Dupont" <[email protected]> wrote in message
 >news:[email protected]..
 >> Any advise on the following problem would be greatly appreciated.
 >>
 >> I am running WebLogic 5.1 (don't know ServicePack offhand) on two
 >instances which are clustered.
 >>
 >> When both instances are up and I redirect from a jsp to a jsp, I lose
 >the
 >httpSession. When either of the instances are down, the httpSession
 >is not
 >lost.
 >>
 >> Has anyone ever seen anything like this or what might be causing it?
 >>
 >> Thanks
 >
 >

Weblogic 6.1 clustering on Linux

 Hi,
 I have clustered two managed servers (one on solaris machine and the other on
 linux red hat 7.1). When I try to boot the cluster, WLS start fine on solaris
 but on the linux machine, I am getting the following message:
 ####<Oct 5, 2001 11:51:12 AM EDT> <Emergency> <WebLogicServer> <simpson> <tuxmac
 hine> <ListenThread> <system> <> <000209> <ListenThread.run() failed: java.lang.
 UnsatisfiedLinkError: no weblogicunix1 in java.library.path>
 java.lang.UnsatisfiedLinkError: no weblogicunix1 in java.library.path
 at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1312)
 at java.lang.Runtime.loadLibrary0(Runtime.java:749)
 at java.lang.System.loadLibrary(System.java:820)
 at weblogic.platform.Unix.<init>(Unix.java:14)
 at java.lang.Class.newInstance0(Native Method)
 at java.lang.Class.newInstance(Class.java:237)
 at weblogic.platform.OperatingSystem.getOS(OperatingSystem.java:75)
 at weblogic.t3.srvr.T3Srvr$2.run(T3Srvr.java:1004)
 at weblogic.t3.srvr.Callback.done(Callback.java:37)
 at weblogic.t3.srvr.ListenThread.newServerSocket(ListenThread.java:186)
 at weblogic.t3.srvr.ListenThread.run(ListenThread.java:223)
 ####<Oct 5, 2001 11:51:12 AM EDT> <Emergency> <WebLogicServer> <simpson> <tuxmac
 stening for connections. You should probably restart it.>
 Can somebody tell where the file weblogicunix1 is located? has this file been
 changed with WLS 6.1 on linux? If yes can you tell me the name of the new file
 so I can create the necessary link?
 Thanks again.
 Amen


 Using the generic file to install the software on linux does not install this automatically.
 The bea support send me this file in an email. I believe for the time being, the
 software is not package properly.
 Thanks for your help.
 Amen
 Kumar Allamraju <[email protected]> wrote:
 ><!doctype html public "-//w3c//dtd html 4.0 transitional//en">
 ><html>
 >You should find it uner $WL_HOME/wlserver6.1/lib/linux
 > directory
 >Amen Akakpo wrote:
 ><blockquote TYPE=CITE>Hi,
 > I have clustered two managed servers (one on solaris machine and
 >the
 >other on
 > linux red hat 7.1). When I try to boot the cluster, WLS start fine
 >on solaris
 > but on the linux machine, I am getting the following message:
 >####<Oct 5, 2001 11:51:12 AM EDT> <Emergency> <WebLogicServer>
 ><simpson> <tuxmac
 > hine> <ListenThread> <system> <> <000209> <ListenThread.run()
 >failed: java.lang.
 > UnsatisfiedLinkError: no weblogicunix1 in java.library.path>
 > java.lang.UnsatisfiedLinkError: no weblogicunix1 in java.library.path
 > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1312)
 > at java.lang.Runtime.loadLibrary0(Runtime.java:749)
 > at java.lang.System.loadLibrary(System.java:820)
 > at weblogic.platform.Unix.<init>(Unix.java:14)
 > at java.lang.Class.newInstance0(Native
 >Method)
 > at java.lang.Class.newInstance(Class.java:237)
 > at weblogic.platform.OperatingSystem.getOS(OperatingSystem.java:75)
 > at weblogic.t3.srvr.T3Srvr$2.run(T3Srvr.java:1004)
 > at weblogic.t3.srvr.Callback.done(Callback.java:37)
 > at weblogic.t3.srvr.ListenThread.newServerSocket(ListenThread.java:186)
 > at weblogic.t3.srvr.ListenThread.run(ListenThread.java:223)
 > ####<Oct 5, 2001 11:51:12 AM EDT> <Emergency> <WebLogicServer>
 ><simpson> <tuxmac
 > stening for connections. You should probably restart it.>
 >Can somebody tell where the file weblogicunix1 is located? has
 >this file been
 > changed with WLS 6.1 on linux? If yes can you tell me the name of
 >the
 >new file
 > so I can create the necessary link?
 >Thanks again.
 >Amen</blockquote>
 ></html>
 >

IPlanet 4.1 - Weblogic 5.1 Clustering

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