Serverfarm Redirect Current Connections
We use a Serverfarm redirect for sites we require to use SSL. The rserver redirect is configured with variables for the hostname (%h) and uri (%p) as follows:
serverfarm redirect SSL
rserver SSL
inservice
rserver redirect SSL
webhost-redirection https://%h%p 302
inservice
That serverfarm is the default class for the load balancing policy for class maps using tcp port 80.
The problem is that the current connections for the serverfarm keep incrementing. My concern is that once this increments to 4,000,000 the serverfarm will no longer accept any connections.
I have cleared the connections to the serverfarm and that changes the total connections, but does nothing to the current connections.
Attached file has sho serverfarm SSL detail output.
Thanks in advance for any and all replies.
What version do you run ?
That sounds like a counter bug.
Do a show conn to verify if you have that amount of connections established or not.
If not, upgrade to the latest version as there were fixes in this area of the code.
If problem persists, open a service request with the TAC to report the problem,
Gilles.
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ACE Module uneven current connections
Good morning all,
I currently have an issue where using the round-robin predictor we are getting some servers being hit with larger numbers of connections than others. This is causing the web servers to drop connections due to being hit very fast in a short period of time.
This is the output from a show serverfarm showing the issue. MK-HOST15 somehow has 1858 current connections and 48 connection failures ....
MK-ACE01/001# show serverfarm MK-FARM-sf
serverfarm : MK-FARM-sf, type: HOST
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---+---------------------+------+------------+----------+----------+---------
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rserver: MK-HOST11
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rserver: MK-HOST12
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rserver: MK-HOST13
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rserver: MK-HOST14
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rserver: MK-HOST16
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MK-ACE01/001# show serverfarm MK-FARM-sf
serverfarm : MK-FARM-sf, type: HOST
total rservers : 8
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: MK-HOST10
10.10.1.10:0 8 OPERATIONAL 229 345394 80
rserver: MK-HOST11
10.10.1.11:0 8 OPERATIONAL 216 345347 126
rserver: MK-HOST12
10.10.1.12:0 8 OPERATIONAL 210 345275 201
rserver: MK-HOST13
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rserver: MK-HOST14
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rserver: MK-HOST15
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rserver: MK-HOST16
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rserver: MK-HOST17
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We are running ACE Code A2(2.3)
The web servers are running Apache and keepalives are off inline with our production enviroments. TCP-Reuse is also turned off. There is no stickyness configured.
Any ideas why certain servers keep getting hit with more connections than others ? It's like roundrobin keeps stopping at a server for a second before moving on to the next one. Any suggestions appreciated.
Thanks.Hello,
Have a look at the Configuring Real Server Rate Limiting section of the ACE documentation. I think this will meet your needs.
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Edited by: 907730 on 2012-01-16 10:20
Added the SDK reference
Edited by: 907730 on 2012-01-17 08:10
Added "development(SDK)" in the titleHi David,
Please go thru below link
http://gerardnico.com/doc/odi/webhelp/en/ref_tools/
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snpsexportmaster.htm for OdiExportMaster
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Error:-
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Anyone know how to find out (programmatically) how many current connections are
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Most Recent Devices Not Currently Connected:
HI,
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Gracenote DSP 1.9.5.45
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WebKit accelerated compositing is disabled.
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Mobile Intel(R) 945GM/GU Express Chipset Family
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YogeshHi susanfromluling,
Welcome to the Apple Support Community!
It sounds like your iPod is not showing in iTunes when you connect it and that is what is not allowing you to sync. Please review the attached article to help you troubleshoot this connection.
iPhone, iPad, or iPod touch not recognized in iTunes for Windows
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How do you detect url redirects when connecting to a URL
how do you detect url redirects when connecting to a URL?
Thanks in advance
stevHai
(i) If it a jsp we can get the URL by request object.
Like
String url = request.getHeader("Referer");
u can do it in Servlet aslo by request object variable.
If this explanation is not ok, Explain ur doubt in more briefed Manner -
ACE: How does one probe "rservers redirect" in "serverfarm redirect"?
Probes can be used with serverfarms of type host
probe http WEB_SERVERS
interval 5
passdetect interval 10
passdetect count 2
request method get url /index.html expect status 200 200
!--- Probe used to detect the status !--- of the servers in the serverfarm.
rserver host S1
ip address 192.168.0.200
inservice
rserver host S2
ip address 192.168.0.201
inservice
rserver host S3
ip address 192.168.0.202
inservice
rserver host S4
ip address 192.168.0.203
inservice
serverfarm host SF-1
probe WEB_SERVERS
rserver S1
inservice
rserver S2
inservice
rserver S3
inservice
rserver S4
inservice
When it comes to "serverfarm redirect" how would one emulate the probing to work as above. (When one is loadbalancing servers of type redirect, the probe command is not available for serverfarm redirect SF-2)
Its also not possible to mix reservers of type redirect with serverfarm of host. If it was possible, This would have answered my question, which is.
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So, you can use the probe configuration on 'serverfarm redirect', where 'ip address [ip_address] routed' option is required.
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/ace/vA2_3_x/Release/Note/RACEA2_3_X.html#wp620109
Unfortunately, 'rserver host' and 'rserver redirect' cannot exist together in the same serverfarm since 'serverfarm host' is
for real server and 'serverfarm redirect' is for redirect rserver.
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/ace/vA2_3_0/command/reference/config.html#wp1117844
When you use backup serverfarm as below, you can use both serverfarms. However, you cannot use primary serverfarm
and backup serverfarm at the same time.
policy-map type loadbalance first-match lb
class class-default
serverfarm SF1 backup SF2
Regards,
Yuji -
How to use the current connection when calling db procedure ?
dear all,
Am using Jdevleoper 11.1.1.3 ,
I have a java class that call a database procedure , now everything is going fine with me but a bit slow bcoz am openning a new connection I think it would be definitely faster if am using the current connection
so how can i re-write my code so i can use the current connection istead of defining a new connection to the DB :
public void DeleteApp (int PAppNo){
String username,password,thinConn;
username = "ACC";
password = "ACC";
thinConn = "jdbc:oracle:thin:@..."
try {
DriverManager.registerDriver(new OracleDriver());
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cs.setInt(1,PAppNo);
Thanks for all,
LamaDelta,
You shound NOT be doing JDBC calls from your UI project. You should put the code as a service method in your application module, expose the service method to the client, and then call it through the binding layer from your UI http://download.oracle.com/docs/cd/E14571_01/web.1111/b31974/bcservices.htm#sm0212
thx John & timo but u always post the same reply at the same time for my questionsTimo and I have been around long enough that we recognize the questions that have been posted 9,461,293,811 times before and know the stock answers, and know where in the documentation the answers are given. As you appear to be new to ADF, I'd strongly recommend reading the Fusion Developer's Guide (skim it once and then read in detail the parts that interest you). As I've said before, so many of the basic (and not-so-basic) concepts are covered in there. Once you've skimmed it in enough detail, then the next time you have a problem, you might not know the answer, but you'll remember, "ah, I think I read something about that before, let me check..."
John
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