Apache and cluster and failover

          Hi All,
          I have a quick question. I am running 2 WLS 5.1 sp6 app servers
          in clustered mode (on solaris 7) using Apache 1.3.12 (also Solaris),
          and the weblogic proxy. Everything is working fine, and failover
          works correctly if one of the servers crashes.
          My problem is when the primary server for a session is correctly
          shut down. In my environment failover does not work in this situation.
          In the case that the server is shut down correctly, should failover
          occur? I would think that all sessions that are on the server
          being shut down would be transferred to the secondary server...
          is this a bug in weblogic? Or am I just wrong?
          Thanks again

          "Cameron Purdy" <[email protected]> wrote:
          >Some OS's combined with some WL releases will failover
          >on graceful
          >shut-down. Sometimes you just have to kill -9 or close
          >the port to get
          >failover to work.
          >
          >--That is very good information. Thank you. I do see the failover
          working correctly when I have 2 NT WLS app servers and a Solaris
          Apache web server. The problem occurs when I have 2 Solaris app
          servers and the Solaris Apache web server. does this sound familiar?
          >Cameron Purdy
          >Tangosol, Inc.
          >http://www.tangosol.com
          >+1.617.623.5782
          >WebLogic Consulting Available
          >
          >
          >"Nick Barbato" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> Hi All,
          >>
          >> I have a quick question. I am running 2 WLS 5.1 sp6
          >app servers
          >> in clustered mode (on solaris 7) using Apache 1.3.12
          >(also Solaris),
          >> and the weblogic proxy. Everything is working fine,
          >and failover
          >> works correctly if one of the servers crashes.
          >>
          >> My problem is when the primary server for a session
          >is correctly
          >> shut down. In my environment failover does not work
          >in this situation.
          >> In the case that the server is shut down correctly,
          >should failover
          >> occur? I would think that all sessions that are on
          >the server
          >> being shut down would be transferred to the secondary
          >server...
          >> is this a bug in weblogic? Or am I just wrong?
          >>
          >> Thanks again
          >
          >

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Can anyone give ex's for poolled and cluster and transparent tables

Hi ,
Can u help me by providing ex's for poolled and cluster and transparent tables

Hi,
Following are the examples for each type.
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Cluster Table -BSEG
Pooled Table - KAPOL
Regards,
Ankur Parab

Change the IP Addresss of Servers that are members of a Windows Failover Cluster and SQL cluster

Hi all,
I have 3-nodes Windows Server 2012 R2 Cluster, on top of it I have two clustered named SQL 2012 instances installed. We need to change the IPs and subnet for the three physical servers incorporated in the Windows cluster. What will be the impact on
the Windows and SQL clusters? What extra configuration is needed in both Windows and SQL clusters to make sure the service will not fail after changing the IPs?

A similar question was answered
here.
The impact is that your Windows and SQL Server failover clustered instances will be offline during configuration so you need to schedule downtime. Plus, your client applications will not be able to find the new IP addresses immediately, depending on your
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2 Hyper-V Servers with Failover Cluster and a single File Server and .VHDs stored on a SMB 3 Share

I have 2 X M600 Dell Blades (100 GB local storage and 2 NICs) and a Single R720 File Server (2.5 TB local SAS storage and 6 NICs). I´m planning a Lab/developer enrironment using 2 Hyper-V Servers with Failover Cluster and a single File Server putting
all .VHDs stored on a SMB 3 Share on the File Server.
The ideia is to have a HA solution, live migration, etc, storing the .VHDs onm a SMB 3 share
\\fileserver\shareforVHDs
It is possible? How Cluster will understand the
\\fileserver\shareforVHDs as a cluster disk and offer HA on it?
Or i´ll have to "re-think" and forget about VHDs on SMb 3 Share and deploy using iSCSI?
Storage Spaces makes difference in this case?
All based on wind2012 R2 STD English version

I have 2 X M600 Dell Blades (100 GB local storage and 2 NICs) and a Single R720 File Server (2.5 TB local SAS storage and 6 NICs). I´m planning a Lab/developer enrironment using 2 Hyper-V Servers with Failover Cluster and a single File Server putting
all .VHDs stored on a SMB 3 Share on the File Server.
The ideia is to have a HA solution, live migration, etc, storing the .VHDs onm a SMB 3 share
\\fileserver\shareforVHDs
It is possible? How Cluster will understand the
\\fileserver\shareforVHDs as a cluster disk and offer HA on it?
Or i´ll have to "re-think" and forget about VHDs on SMb 3 Share and deploy using iSCSI?
Storage Spaces makes difference in this case?
All based on wind2012 R2 STD English version
You can do what you want to do just fine. Hyper-V / Windows Server 2012 R2 can use SMB 3.0 share instead of a block storage (iSCSI/FC/etc). See:
Deploy Hyper-V over SMB
http://technet.microsoft.com/en-us/library/jj134187.aspx
There would be no shared disk and no CSV just SMB 3.0 folder both hypervisor hosts would have access to. Much simplier to use. See:
Hyper-V recommends SMB or CSV ?
http://social.technet.microsoft.com/Forums/en-US/d6e06d59-bef3-42ba-82f1-5043713b5552/hyperv-recommends-smb-or-csv-
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You can use Storage Spaces just fine but you cannot use Clustered Storage Spaces as in this case you'll have to take away your SAS spindles from your R720 box and mount them into SAS JBOD (make sure it's certified). So you get rid of an active components
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Deploy Clustered Storage Spaces
http://technet.microsoft.com/en-us/library/jj822937.aspx
Storage Spaces,
JBODs, and Failover Clustering – A Recipe for Cost-Effective, Highly Available Storage
http://blogs.technet.com/b/storageserver/archive/2013/10/19/storage-spaces-jbods-and-failover-clustering-a-recipe-for-cost-effective-highly-available-storage.aspx
Using
Storage Spaces for Storage Subsystem Performance
http://msdn.microsoft.com/en-us/library/windows/hardware/dn567634.aspx#enclosure
Storage
Spaces FAQ
https://social.technet.microsoft.com/wiki/contents/articles/11382.storage-spaces-frequently-asked-questions-faq.aspx
Alternative way would be using Virtual SAN similar to VMware VSAN in this case you can get rid of a physical shared storage @ all and use cheap high capacity SATA spindles (and SATA SSDs!) instead of an expensive SAS.
Hope this helped :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

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Hi All,
I'm reviewing my options for a new cluster configuration and would like the opinions of people with more expertise than myself out there.
What I have in mind as follows:
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igb1 device in aggr1
igb2 device in aggr1
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[3] If the underlying nic, igb0-2 (aggr1) for example, has 9k mtu enabled, I can force the mtu size (1500) for "normal" networks on the vlan interfaces pointing to my "public" network and cluster interconnect vlan. Does anyone have experience of this causing any issues?
Thanks in advance for all comments/suggestions.

For 1) the question is really "Do I need to enable Jumbo Frames if I don't want to use them (neither public nore private network)" - the answer is no.
For 2) each cluster needs to have its own seperate set of VLANs.
Greets
Thorsten

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Hello,
I am attempting to setup a geographic cluster to failover an Informix application to our disaster recovery (BCP) site. I have a Sun Fire V440 in each location running Solaris 10 08/07 update. The application is currently running on a Solaris 8 02/04 server and must continue to do so. The catch is that the server in the BCP site is also used as a QA server. My thought was to create on the Solaris 10 server, two Solaris 8 containers, one for failover from the home office and the other used for QA. At the home office site, the server would run one Solaris 8 container. We are using EMC SRDF for replication and storage of the Informix database. The container on the home office server would failover to the BCP container on the server in the BCP site. My questions are: 1) Is this scenario possible, and 2) How would I configure the clustering on the servers? Should I be using the the data services for Containers and for Informix? I have so far created one node clusters in each site and was in the process of configuring the resource groups but was unsure how to proceed. Thanks for any help anyone can give. Thanks.

I work for the Sun Cluster Geographic Edition (SCGE) team so I hope I can give some definitive answers...
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Regards,
Tim
---

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I have successfully set up two servers in a cluster and
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Thanks.

FYI: I did use the process outlined above to briing the cluster offline, perform updates, and bring it back online. It worked as I had hoped. As a test, I had also done the same on a test [non-SQL] cluster prior to making the updates to our SQL cluster. Is it the best way to do it? Who knows. Did it work? Yes.

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Eric Siron Altaro Hyper-V Blog
I am an independent blog contributor, not an Altaro employee. I am solely responsible for the content of my posts.
"Every relationship you have is in worse shape than you think."

Is a web server plug-in required between Apache 2.2 and WLS 10.3.5

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Does anyone know the detailed answer to this? What is the mod_wl_22.so really doing?
My client is very web savvy and is wondering if the web server can be set up to front-end weblogic server without this.
The environment is a 2 node cluster with SOA suite as the main component. I have a soa_cluster, bam_cluster, wsp-pm_cluster and Admin Server installed on both of these nodes.
Any help is appreciated.
Thanks,

I found this link to a .pdf that I believe explains the difference between OHS and Apache and what the web server plug-ins do. See this link:
http://www.oracle.com/technetwork/middleware/ias/ohs11gr1-131852.pdf

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Hi,
I would like to clearly understand how the plugin and cluster work together in achieving load balancing.
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Thankyou very much.

Hi Hoze,
In Oracle Enterprise Manager lingo, a plug-in simply enables EM to monitor heterogeneous environments. In some cases this capability is available OOB or after the fact.
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http://www.oracle.com/technology/products/oem/extensions/index.html
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Thanks

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Friends,
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When installing service pack for multiple instances in a standalone machine, you just run the installer and it lists all the instances eligible for the update. You could do it one by one or do it at the same time. Doing it at the same time saves time and
energy. If you selected multiple instances then you dont have to do anything else.
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2. At this point both instances 1 and 2 would get upgraded and will be active in Node2. Now Node 1 is passive and so run the update there. Once the service pack is installed, reboot and then fail back Instance 1 back to Node 1. Note: I would also failover
Instance 2 to Node 1 just to confirm that failover works completely after service pack update.
Regards, Ashwin Menon My Blog - http:\\sqllearnings.com

LoadBlanceing and Cluster

Dear sir,
How To Create Cluster and Island in OC4J.
what are the various Hardware and software
requirement.Which File we have to Configure
Please send a reply its Urgent.
Thanks in Advance
Bye

The atlassian link, the orion docs (which are the same as the
atlassian link, and the OC4J docs (which are sparse!), leave out
some key bits, without which your application will fail:
1. You can't have statefull session beans in a clustered
enterprise application. The only session context which is shared
is the http session.
2. Anything which you save to your session context in a servlet
must be serializable, otherwise the web application cannot be
clustered.
3. Although you can save Home ejb references to a session
context, they will not be properly found in the event of an
island failure...since Orion does not have a default ejb Home
factory. In order to get around this, save any Home references
to the application context in an init() of your startup servlet,
and all of your Home ejb references will be preserved in a
failover.
4. You web-app must have the <distributable /> tag in the
web.xml file.
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Regards,
the elephantwalker
www.elephantwalker.com

A CONFUSION:The difference between cluster and multi-IP--DNS mapping??

          I have a test about simplest cluster,admin and managed server all told me "start
          cluster service"!the two IP address use ONE DomainName,If one down,when I send
          request with dn,It first look up admin server,no found and then go dns to search
          another server,about one minute then the server send response to me!
          But when I do not config a cluster,only start two admin server and give them the
          same dns,the same appearance as cluster!
          I don't understand the difference between cluster and multi-IP--DNS mapping??


          <[email protected]> wrote in message news:3b16f1db$[email protected]..
          |
          | I have a test about simplest cluster,admin and managed server all told me
          "start
          | cluster service"!the two IP address use ONE DomainName,If one down,when I
          send
          | request with dn,It first look up admin server,no found and then go dns to
          search
          | another server,about one minute then the server send response to me!
          |
          This is DNS fail-over.
          | But when I do not config a cluster,only start two admin server and give
          them the
          | same dns,the same appearance as cluster!
          | I don't understand the difference between cluster and multi-IP--DNS
          mapping??
          It is totally different. regarding the last failover example you've given,
          of course the 2 servers can have identical files maintained under
          public_html. DNS will failover requests to "foo.html" to the other one if
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          This is just a simple example of WLS cluster session-replication. WLS
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Some error in cluster alertlog but the cluster and database is normal used.

hi.everybody
i used RAC+ASM,RAC have two nodes and ASM have 3 group(+DATA,+CRS,+FRA),database is 11gR2,ASM used ASMlib,not raw.
When i start cluster or auto start after reboot the OS,in the cluster alertlog have some error as follow:
ERROR: failed to establish dependency between database rac and diskgroup resource ora.DATA.dg
[ohasd(7964)]CRS-2302:Cannot get GPnP profile. Error CLSGPNP_NO_DAEMON (GPNPD daemon is not running).
I do not know what cause these error but the cluster and database can start normal and use normal.
I do not know whether these errors will affect the service.
thanks everybody！

anyon has the same question?

Apache and cluster and failover

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