Question about Load Balance SFTP service by using CSS1150X

Does anyone come across of load balancing SFTP service by using CSS1150X? Typically by configuring CSS1150X to load balance FTP service, the configuration will as follow:
content ftp_rule
vip address 192.168.3.6
protocol tcp
port 21
application ftp-control
add service serv1
add service serv2
add service serv3
active
group ftp_group
vip address 192.168.3.6
add service serv1
add service serv2
add service serv3
active
However, for my personal understanding and knowledge, I will configure my CSS1150X as follow to load balance SFTP service:
content sftp_rule
vip address 192.168.3.6
protocol tcp
port 22 //Change 21 to 22
application ftp-control
add service serv1
add service serv2
add service serv3
active
group sftp_group
vip address 192.168.3.6
add service serv1
add service serv2
add service serv3
active
My question is, "application ftp-control" in content "ftp_rule" is still applicable to SFTP or not?

I believe application ftp-control would not be used for sftp.
This might cause the session to get dropped when there is no data channel created and cause issues with long connections.
Hope it helps!!

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          Hi,
          We are running WLS 5.1.0 SP5 on NT 4.0 SP6. We are not using clustering.
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This is not the syntax. Syntax is just this:
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          > > > - Prasad

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Hi,
I have the problem whit load balancing between Portal and ECC (ERC) ABAP
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Cheers Michael

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I have an 11503 and I am trying to load balance sftp servers behind it. not sure why it's not working.
here is the content rule:
content test_sftp
add service www1_sftp
add service www2_sftp
port 22
protocol tcp
balance aca
advanced-balance sticky-srcip
vip address 172.17.0.248
active
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ip address 172.17.0.27
protocol tcp
keepalive port 22
keepalive type tcp
active
service www2_sftp
ip address 172.17.0.25
protocol tcp
keepalive port 22
keepalive type tcp
active
couple of questions:
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2) the content rule and service rules are all set for port 22 only....is that enough ports open for the control and data channels? I think sftp uses port 22 for both.
Any assistance would be greatly appreciated.
Thanks!
Sandeep

You definitely need a group to nat the data-channel.
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You can give it a try so.
Gilles.

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Philippe

Did you ever Get this to work?
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[email protected]

Newbie question about loading servlets on tomcat

I have what is probably a very basic question about loading simple servlets on to tomcat to test its installation. I have followed instructions from numerous tutorials to the letter but still I can't get it to work.
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Many thanks
Marc

You have to add in the web.xml file that it is in the WEB-INF dir, the information about your servlet. An example:
<web-app>
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/HelloServlet</url-pattern>
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</web-app>

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Hello every body.
I have some question about document/literal web service.
I’ve been working with Axis before.
Axis has four valid signatures for your message-style service methods:
public Element [] method(Element [] bodies);
public SOAPBodyElement [] method (SOAPBodyElement [] bodies);
public Document method(Document body);
public void method(SOAPEnvelope req, SOAPEnvelope resp);
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I have serialized exceptions for org.w3c.dom.Document.
Do I have to write a custom class for org.w3c.dom.Document serialization?
If yes can you give me some idea or example?
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One more question… How I have to call this web service from java client?
I have seen this example http://www.manojc.com/?sample31 ,
but this web service looks like (Document helloDom()). I need to send Document.
This example works for Dynamic Proxy, but does not work for static call.
Any ideas?? Thank in advance.

Hi,
I am getting a similar issue. I created a Document-style/literal webservice and deployed on Weblogic 9.2 . Then I generated client stubs using clientgen. I get the following exception stack trace:
java.rmi.RemoteException: web service invoke failed: javax.xml.soap.SOAPException:
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class=class com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl TypeMapping=TYPEMAPPING SIZE=3
ENTRY 1:
class: java.lang.Object
xsd_type: ['http://xmlns.ozarkexpress.com/business/sell']:stns:echoDocumentResponse
ser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@1125127
deser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@18dfef8
ENTRY 2:
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ser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@15e83f9
deser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@2a5330
ENTRY 3:
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CSS11501 load-balancing IPv6 services

Hi,
I'm new to content networking and load-balancing.
I am setting up a new nameserver network site and have the following equipment:
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- Cisco Catalyst 2960
This site will have 2 nameservers which I want to load-balance behind the CSS11501. The network will be setup like this:
Internet
|
Cisco 2811
|
CSS11501
|
Cisco 2960
|
Nameservers 1 & 2
The CSS11501 will be in routed mode and will have a publicly addressed VIP (eg, 203.x.x.x) for the DNS service and the name servers will be privately addressed (eg, 10.x.x.10 & 10.x.x.11). I'm hoping this will work fine and serve the requested IPv4 DNS requests.
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My question is, does the CSS11501 support IPv6, load-balancing IPv6 service requests?
Thanks in advance.
Richard.

Gilles,
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Thanks.
Richard.

About load balancing in rac

Dear Gurus
I want to ask about load balancing in RAC.
we have two nodes rac1 rac2 with physical ip as virtual ip as
rac1 rac2
physical 10.22.1.50 10.22.1.51
virtual 10.22.1.54 10.22.1.55
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2 FROM gv$session
3 WHERE type = 'USER' and TO_CHAR(logon_time, 'DD-MON-YYYY HH24:mi:ss') like '%05-OCT-2011 17%'
4 GROUP BY inst_id, TO_CHAR(logon_time, 'DD-MON-YYYY HH24:mi:ss')
5 ORDER BY inst_id, TO_CHAR(logon_time, 'DD-MON-YYYY HH24:mi:ss');
INST_ID Hour when connected DB Sessions
1 05-OCT-2011 17:20:06 1
1 05-OCT-2011 17:27:18 1
2 05-OCT-2011 17:11:31 1
2 05-OCT-2011 17:26:28 2
2 05-OCT-2011 17:26:38 1
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Using a single CSS to load balance multiple services

Is it possible to use a single CSS to load balance 3 different services (server farm) ? That mean the CSS need to advertise 3 VIP
I'm thinking of two scenarios:
1 - configure the CSS to use 4 interfaces: 1 to public, 3 to private (each interface will plug-in to a different vlan/server farm)
2 - configure the CSS to use 2 interfaces: 1 to public, 1 to private (all 3 server farms are in the same vlan)
Will both scenarios work ?
Thanks
--Phillip.

Hi Phillip,
both scenarios will work. One CSS can certainly manage more than 3 services! You can even use just one VIP for all traffic, then just create the proper rules to send specific traffic to the corresponding service(s). No need for 3 VIPs.
Regards
-juerg

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I know how to load an image and to draw it onto a canvas etc etc. However my question is to do with the efficiency of loading multiple images (possibly the same image!) and using them together. I have multiple objects, all instances of the same class, which all draw themselves onto a screen in different positions. However they all use the same 3 images (depending on an internal state).
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url = this.getClass().getResource("MyImage.png");
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Use ImageIO rather than Toolkit--with Toolkit you need to use a MediaTracker to ensure you have your image loaded before you try to use it.
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Question Cluster/Load balancing

Question about iplanet load balancing/Cluster:
Following discussion are based on iAS C++ engine(kcs).
We have four web servers and two iAS servers:
Web1, Web2, Web3, Web4
iAS1, iAS2
All machines run Solaris 8, web server is iWS4.1 SP6,
Application server is iAS6.0 SP2, and both iAS boxes have
same hardware configuration.
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Per Server Response Time(Web Connector Driven)
Per Component Response Time(Web Connector Driven)
Round Robin(Web Connector Driven)
User Defined Criteria(iAS Driven)
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load balancing?
3. If we set iAS driven load balancing, what's the criteria
for the web connector used to choose kxs?
4. We got a problem when run load testing for an AppLogic
in this cluster, one iAS CPU average usage got almost
100%, but the other one is just 70%.
We used Per Server Response Time load balancing method.
Thanks.
Heng

see answers inline
hcao wrote:
Question about iplanet load balancing/Cluster:
Following discussion are based on iAS C++ engine(kcs).
We have four web servers and two iAS servers:
Web1, Web2, Web3, Web4
iAS1, iAS2
All machines run Solaris 8, web server is iWS4.1 SP6,
Application server is iAS6.0 SP2, and both iAS boxes have
same hardware configuration.
1. What's the best load balancing method for this structure?
Per Server Response Time(Web Connector Driven)
Per Component Response Time(Web Connector Driven)
Round Robin(Web Connector Driven)
User Defined Criteria(iAS Driven)
it depends on the characteristics and behaviour of your application
>
2. What's the criteria for the kxs engine to choose the kcs
engine to sent request if we set Web Connector Driven
load balancing?
kxs always does round robin to the kjs or kcs engines. The webconnector
selects the kxs to which to send to.
>
3. If we set iAS driven load balancing, what's the criteria
for the web connector used to choose kxs?
as specified by your criteria in the iAS driven section.
The ias instance will send its current list of preferences for ias
intances it got from the criteria to the webconnector. This information
is dynamic and updated constantly.
>
4. We got a problem when run load testing for an AppLogic
in this cluster, one iAS CPU average usage got almost
100%, but the other one is just 70%.
We used Per Server Response Time load balancing method.
again, this can be a valid result depending on the way your applogics
are written. Are they CPU bound, I/O bound or DB bound? Since individual
components execute differently and you specified to use the average of
those results to determine load balancing this can be a valid result
because differences in execution times of your applogics.
>
Thanks.
Hengregards
Han-Dat
Consulting Project Engineer
iPlanet Professional Services - ANZ
iPlanet e-commerce Solutions
- A Sun|Netscape Alliance
Sun Microsystems Australia Pty Ltd

Oracle RAC load balancing advisory services query

Hi,
I have a query on RAC load balancing advisory.
Is it possible to create a service for exeuction of a PL/SQL package?
We have UNIX batches which are set of PL/SQL packages that may or may not be linked are executed daily. These batches consumes lots of resources.
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Is it possible to achieve this with Net services and LBA?
If not, is there any other way i can do this?
Thanks
AT
Message was edited by:
Amit Trivedi

Hi, my answers are:
Is it possible to create a service for exeuction of a PL/SQL package?Yes, that is posible, you can create a service for execute PL/SQL Packages, in fact you can create any service that you need and assign the resources and priorities for this service.
Is it possible to achieve this with Net services and LBA?Yes, thats posible, you define the priorities at service level and where the service must run at node level.
If not, is there any other way i can do this?Yes, if you dont wish using the LBA and services you will must create statict definition into tnsnames file for operate connection string and indicate where must connect the session for execute the package.
Luck.
Have a good day.
Regards.

Inquiry about Load Balancer 440

Hi
We are planning to buy the Barracuda Load Balancer 440- BBFI440a to be used as H/W load balancer for our applications and Ftp servers. We are using oracle application server 10.1.2.0.2 and Oracle BI and windows 2003 FTP server.
My question is, does the Barracuda load balancer certified with Oracle AS 10.1.2.0.2?
Thanks

Rich,
When multiple remote addresses are defined, Coherence does randomize the address list defined in the configuration file and connect to the next address in the list.
-Luk
Edited by: lsho on Jul 19, 2012 10:56 AM

Question about Load Balance SFTP service by using CSS1150X

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