Inconsistent behaviour of proxy plugin

Hi
We are using WL 7.0 IIS plug-in to proxy to our "weblogic 7.0 servers.It is showing
an incosistent behavoiur on two different proxy boxes.
We are using following values in our iispoxy.ini file
WebLogicHost=148.168.218.36
WebLogicPort=8502
ConnectTimeoutSecs=20
ConnectRetrySecs=2
WlForwardPath=/
PathTrim=/field
PathPrepend=/field
DefaultFileName=/index.jsp
Debug=ON
WLLogFile=D:\iisproxy\proxy.log
For one of the proxy server this works fine ie. we are properly redirected to
our site.And all the pages show up fine.
This is what we get on the proxy.log file ----
Wed Jun 18 09:09:22 2003 request [field/authenticated.jsp?loginID=HICKSA&loggedInFlag=true&lastName=Andy&pharmaciaUser=N]
processed successfully ..................
Context root ("field") is refered once in this log.
for the other proxy server it throws "Error 404"
This is what we get on the proxy.log file----
Wed Jun 18 09:09:22 2003 request [field/field/authenticated.jsp?loginID=HICKSA&loggedInFlag=true&lastName=Andy&pharmaciaUser=N]
processed successfully ..................
It seems it is doubling the context root name (/field/field) for one of the proxy
server.(one that is showing 404 error)
Why is it doubling the context root in one of the proxy servers?
Is there some issue with the iispoxy.dll file for one of the servers?

Hi Steve,
I think "erratic" is how it's going to be. A bit like the forum search then; your search criteria produced this...
... at the top of the list. Apparently, I authored something!
Here's the thread itself...
But I don't see my name as one of the contributors. Oh well!
I don't have much hope of resolving this fully, I just thought I'd give it a whirl to see if anyone had magic insight.
Here's another of my Smart Playlists. When I tell you that this one never, ever, updates on-the-fly, will you be surprised?
Several of the referred lists have four rules!
The search did throw up this thread; https://discussions.apple.com/message/19233028#19233028 but I'm sure there was another one as well.
I may try removing a rule or two from the mega list above, or I may simply accept it as it is. Overall, it works well, even the Ultima Playlist. I simply Sync with iTunes on a frequent basis, which as you know, isn't as arduous a task as some people like to make out.
Thanks for your contribution.
Phil

Similar Messages

The important parameters controlling behaviour of the Proxy Plugin

The 7.0 Proxy Plugin has various crucial parameter controlling its operation. These are n:
#1. poll-timeout parameter that determines how long it waits for a reply before
considering a request as having failed.
The poll-timeout can be increased by adding the poll-timeout parameter to the end of
the Service entry within the obj.conf file. For example:
Service type="magnus-internal/passthrough" fn="service-passthrough"
servers="http://sunflash.red.iplanet.com" poll-timeout="600000"
Default timeout is 5 minutes, or 300000 milliseconds
Maximum timeout is 6 hours, or 21600000 milliseconds
Minimum timeout is 1 second, or 1000 milliseconds
#2. connect-timeout parameter that determines how long to wait for a connection
Minimum = 10 ms
Maximum = 75 seconds (75 * 1000)
Default = 5 seconds (5 * 1000)
#3. connect-interval parameter that determines Interval between connect() calls
Minimum = 10 ms
Maximum = 30 seconds (30 * 1000)
Default = 500 ms
AND
#4. keep-alive-timeout parameter that determines Maximum time to let connections idle
Minimum = 0
Maximum = 6 hours (6 * 60 * 60 * 1000)
Default = 30 seconds (30 * 1000)

JoachimSauer wrote:
I wouldn't care about efficiency in this kind of methods. Only optimize,
when you find out that this method is indeed a bottleneck, otherwise just
write a simple implementation (simple implementations are usually easier
to optimize for the JIT compiler, than "clever" impelementations).I agree with you, and when you recommend to basically "write dumb code", this interview with Brian Goetz crosses my mind: http://java.sun.com/developer/technicalArticles/Interviews/goetz_qa.html
But given that the prolem at hand is Boolean, why not make a simple straightforward approach:
!((a & b) | (a & c) | (a & d) | (b & c) | (b & d) | (c & d)), which leads to
!((a & (b | c | d)) | (b & (c | d)) | (c & d)) or
boolean xor(final boolean a, final boolean b, final boolean c, final boolean d) {
return !((a & (b | c | d)) || (b & (c | d)) || (c & d));
}I consider this an acceptable solution, too.
EDIT:
No, not anymore! It may look nice and all, but is not quite XOR... so I apologize for being careless and not double-checking what I wrote (my "xor" returns true even if all arguments are false) -- sorry!
This should (hopefully) be correct:
EDIT2:
<del>[...]</del>
Aarrgh, but it's still horribly wrong! Made the same mistake twice, now I'll take some time to really think before totally embarrassing myself today...
But I have to admit that JoachimSauer's solution is indeed simpler and is probably the right choice...
Message was edited (2x) by:
oebert: correction
Message was edited by:
oebert

Inconsistent Behaviour on executing Xquery on the container....

I need some of the suggestions on the following BDB issue. Here I written the code to create the container, load the .xml file in to it with doc_id and opens the allready existing container. Here I am seeing inconsistent behaviour.
Following are the Steps I followed...
1. Created DbEnv class object .
2. Opened the DbEnv using open methode with flags "DB_CREATE | DB_INIT_MPOOL".
3. Created XmlManager class object with the flags "DBXML_ADOPT_DBENV | DBXML_ALLOW_AUTO_OPEN".
Rest of the steps are mentioned in the code fragment..
Class Definition is as follows...
#include <dbxml/DbXml.hpp>
using namespace DbXml;
using namespace std;
class BDBObject // Singleton class
public:
static BDBObject* instance();
bool open_xml();
bool close_xml();
bool execute_xquery(const string & exp, string & response);
~BDBObject();
private:
BDBObject();
static BDBObject* m_singletonObject;
XmlManager *m_xmlManager;
DbEnv *m_bdbEnv;
XmlUpdateContext m_xmlUpdateContext;
XmlQueryContext m_xmlQcontext;
XmlContainer m_necbContainer;
XmlContainer m_necbXmlContainer;
bool BDBObject::open(bool flagEnabled)
-------------- < code fragment for first 3 steps mentioned above> -----------------
try{
string containerName = "container1.dbxml";
if(m_xmlManager -> existsContainer(containerName))
[b]m_necbContainer = m_xmlManager -> openContainer(containerName); // Opening allready existing container
else
return false;
if(flagEnabled)
XmlUpdateContext updateContext = m_xmlManager -> createUpdateContext();
m_necbXmlContainer = m_xmlManager -> createContainer("container2.dbxml");
XmlInputStream *fileStream = m_xmlManager -> createLocalFileInputStream(filePath);
m_necbXmlContainer.putDocument(fileDocId, fileStream, updateContext, 0);
}// End of Try block...
catch (XmlException &xe)
cout<<"XmlException: "<<xe.what()<<endl;
return false;
return true;
}// End of function
bool BDBObject::execute_Xquery(const string & sExp, string & response);
if(NULL == m_xmlManager)
return false;
XmlContainer *bdbContainer = NULL;
if(flagEnabled)
bdbContainer = &m_necbXmlContainer;
else
bdbContainer = &m_necbContainer;
if(bdbContainer == NULL)
return false;
try{
XmlQueryContext xmlQcontext = m_xmlManager->createQueryContext();
string containerName = bdbContainer -> getName();
m_xmlQcontext.setDefaultCollection(containerName);
XmlQueryExpression xmlQExp;
if(flagEnabled)
xmlQExp = m_xmlManager -> prepare(sExp, xmlQcontext);
XmlResults bdbResult = xmlQExp.execute(xmlQcontext);
XmlValue bdbValue;
while(bdbResult.next(bdbValue))
response = response + bdbValue.asString();
}// End of Try block..
catch (XmlException &xe)
cout<<" XML Exception: "<<xe.what()<<endl;
return false;
return true;
}// End of function
<---------------- Application ----------------->
main()
cout<< "In Application "<<endl;
bool flagEnabled = false;
BDBObject *obj = BDBObject::instance(); // Singleton Object Creation
obj -> open(false);
string xquery("");
if(flagEnabled)
xquery = "declare namespace HHP=\"HHP\";
let $n := doc('container1.dbxml/<corressponding docId>')//HHP:hapCageTable
return ($n);"
else
xquery = "declare namespace HHP=\"HHP\";
let $n := doc('container2.dbxml/<corressponding docId>')//HHP:hapCageTable
return ($n);"
string response;
obj -> execute_xquery(xquery, response);
---------- END -------
Here when I make flagEnabled as false in the application & then compiled.. After execution of the application, I had got expected output.
Use cases which i tested the application in sequence are...
1. I make flagEnabled as false in the application & then compiled.. After execution of the application, I had got expected output.
2. I make flagEnabled as true in the application & then compiled... After execution of the application, I had got expected output.
3. I make flagEnabled as false in the application & then compiled... After execution of the application, I had got exception in the BDBObject::execute_xquery() function at the line "xmlQExp = m_xmlManager -> prepare(sExp, xmlQcontext);" and shows the exception as "Error: No such file or directory".
4. If I execute once again the previous use case, then it works.
5. Now I re-executed the use case 2, I had got expected output.
6. Now I re-executed the use case 1, Here I am able to see the execption in BDBObject::open function at line "m_necbContainer = m_xmlManager -> openContainer(containerName);" and shows the exception as "Error: container1.dbxml: container file not found, or not a container".
Please let me know some suggestions to proceed further on this issue..
Thanks in Advance,
Regards,
Sravan.

Sorry let me explain it clearly.....
Input plain xml file:
<bookstore>
<book>
<title>ALSB</tile>
<price>100</price>
</book>
</bookstore>
As we know $body points to root element of above input xml file
1) My xpath/Xquery condition is --> data($body/book/price)>30 than I validated and tested with above xml input it returns true to me so I saved and activated my proxy.
2) Now next step let me test proxy from proxy test screen for above input xml file, I clicked on test icon and inputted above xml file. But myxpath/Xquery condition in proxy fails and it goes to else condition.
The strange part is, if I change my input file to
<book>
<title>ALSB</tile>
<price>100</price>
</book>
Than above condition return true, why this is behaving like this
Edited by prabhu_biradar at 11/18/2007 8:26 PM
Edited by prabhu_biradar at 11/19/2007 6:10 AM

WebLogic proxy plugin: getPooledConn: No more connections in the pool

Hi,
We have weblogic proxy plugin installed in Sun One web server. but frequently we are getting following errors in proxy log:
<1670612410085901> attempt #0 out of a max of 5
<1670612410085901> Trying a pooled connection for '<IP>/<port>/<port>'
<1670612410085901> getPooledConn: No more connections in the pool for Host [<IP>] Port[<port>] SecurePort[<port>]
Can anybody please tell how this proxy plugin manages connection pools? I don't find any minimum / maximum number of conection to mention anywhere or how exactly it works?

Try increasing the "AcceptBackLog" settings on the weblogic server and then verify for any changed behavior.
Raise the Accept Backlog value from the default by 25 percent. Continue increasing the value by 25 percent until the messages cease to appear.
Link :[http://e-docs.bea.com/wls/docs81/perform/WLSTuning.html#1136287]

IP address lost in Weblogic proxy plugin

          Hi,
          We have 4 web servers that forward requests for jsps to 10 weblogic instances
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          Dipak Jha


Try increasing the "AcceptBackLog" settings on the weblogic server and then verify for any changed behavior.
Raise the Accept Backlog value from the default by 25 percent. Continue increasing the value by 25 percent until the messages cease to appear.
Link :[http://e-docs.bea.com/wls/docs81/perform/WLSTuning.html#1136287]

Weblogic proxy plugin closes keep-alive connections to clients randomly

In short we have following arhitecture:
clients ---> wl proxy plugin 1 ----> weblogic 1
clients ---> wl proxy plugin 2 ----> weblogic 2
Beacuse of the application/installation specific requirements, we are not using failover, one wl proxy always forwards requests to one weblogic (simple configuration).
Application is TR-069 protocol based (SOAP over HTTP) so it very much relays on persistence TCP connections (Connection: keep-alive). This TCP persistence has to work correctly in order that TR-069 messages are exchanged in required order, otherwise we have a error on application layer.
Here and there we've noticed applications errors which suggest that we have some problems in TCP connection between the client and the weblogic server. After sniffing, we've noticed that weblogic proxy plugin (Apache) randomly, or because of some other reason we do not know, decides to close TCP connection to client, even app on weblogic did not request so ???
As a result, client opens new connection to the server with new TR-069 session and it gets bounced beacuse it allready has one open on weblogic server.
We've sniffed, traced everything we could, we were searching for patterns in time, etc... but we can not find the reason why proxy plugin decides to close the connection to the client (not to the weblogic server).
Trace (replaced sensitive information):
Thu Apr 29 15:05:50 2010 <958012725463463784> URL::parseHeaders: CompleteStatusLine set to [HTTP/1.1 200 OK]
Thu Apr 29 15:05:50 2010 <958012725463463784> URL::parseHeaders: StatusLine set to [200 OK]
Thu Apr 29 15:05:50 2010 <958012725463463784> parsed all headers OK
Thu Apr 29 15:05:50 2010 <958012725463463784> sendResponse() : r->status = '200'
Thu Apr 29 15:05:50 2010 <958012725463463784> canRecycle: conn=1 status=200 isKA=1 clen=545 isCTE=0
Thu Apr 29 15:05:50 2010 <958012725463463784> closeConn: pooling for '$IP$/$PORT$'
Thu Apr 29 15:05:50 2010 <958012725463463784> request [$URL$] processed successfully..................
!!!! Now it closes the TCP connection and inserts "Connection: close" HTTP header !!!
WL proxy plugin conf params are:
WebLogicCluster $IP$:$PORT$
DynamicServerList OFF
KeepAliveTimeout 90
MaxKeepAliveRequests 0
KeepAliveSecs 55
Apache worker configuration is:
<IfModule mpm_worker_module>
PidFile var/run/httpd-worker.pid
LockFile var/run/accept-worker.lock
StartServers 2
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 200
ThreadsPerChild 200
MaxClients 2000
MaxRequestsPerChild 0
AcceptMutex pthread
</IfModule>
Why weblogic proxy plugin ignores Keep-alive directive and decides to close connection to the client by itself?
Any help?

If a WebLogic Server instance listed in either the WebLogicCluster parameter or a dynamic cluster list returned from WebLogic Server fails, the failed server is marked as "bad" and the plug-in attempts to connect to the next server in the list.
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Note: The MaxSkips parameter has been deprecated as the MaxSkipTime parameter.
See also here: http://download-llnw.oracle.com/docs/cd/E13222_01/wls/docs81/plugins/plugin_params.html
You said the problem arises under significant load. Maybe, it is wise to tune the number file descriptor's on your operating system. HTTP connections are nothing more than TCP sockets on the operating system. All modern operating systems treat sockets as a specialized form of file access and use data structures called file descriptors to track open sockets and files for an operating system process. To control resource usage for processes on the machine, the operating system restricts the number of open file descriptors per process. You should be aware that all TCP connections that have been gracefully closed by an application will go into what is known as the TIME_WAIT state before being discarded by the operating system.
On most unix systems you can use netstat -a | grep TIME_WAIT | wc -l to detemine the number of socket in time_wait state. You have to check with your system adminstrator how to tune the tcp_time_wait_interval. On solaris you can use: /usr/sbin/ndd -set /dev/tcp tcp_time_wait_interval 60000

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All,
Solved it myself and it works with OC4J only.
Regards,
MB

Load balancing by the proxy plugin

Has anyone encountered this before:
I have a cluster of two WLS 5.1 servers, hosting servlets that serve web
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Weblogic, Apache as well as IIS). I also have a tool that simulates
concurrent web requests and fires them to the proxy server.
As per documentation, as the load balancing while proxying requests to
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distributed across the two weblogic servers. But what I see is a bit
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server and 4 went to the other.
Second time when I fired again 2 of them went to the first server and 13 to
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Has anyone encountered this before ? This happens to me irrespective of
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Thanks
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Could you post this in weblogic.developer.interest.plug-in? This group is for
ejb related questions. Thanks.
Bill
Mainak Datta wrote:
Has anyone encountered this before:
I have a cluster of two WLS 5.1 servers, hosting servlets that serve web
requests. The requests are proxied through a web server ( I have tried
Weblogic, Apache as well as IIS). I also have a tool that simulates
concurrent web requests and fires them to the proxy server.
As per documentation, as the load balancing while proxying requests to
servlets is round robin, I expect that the requests are uniformly
distributed across the two weblogic servers. But what I see is a bit
different. In one case I fired 15 requests and found that 11 went to first
server and 4 went to the other.
Second time when I fired again 2 of them went to the first server and 13 to
the second one. I would expect that around half of the total requests
should be routed to each server everytime so that there is a proper load
balancing done by the proxy. I have not changed any configuration related
to the default load balancing algorithm. So I expect it is round-robin.
Has anyone encountered this before ? This happens to me irrespective of
which proxy server I use (i.e which proxy plugin I use). Is there some
other configuration required and I am missing something or is there some
inherent problem with the load balancing of the proxy plugins. Any info
would be highly appreciated.
Thanks
Mainak

ECC 6.0 VERSION UPGRADE - INCONSISTENCY BEHAVIOUR -MM - Reg

Hai,
We are in the process of ECC 6.O upgrade from ECC 5.0,
we started the CT1/ CT2 testing and found the following error.
While inwarding Material against Subcontracting purchase order / S.L.Agreement ,
The system shows the error message of CHALLEN MATERIAL IS DIFFRENT FROM MATERIAL DOCUMENT , during GR
note :- for the same material , same p.o , some times systems allows for GR & some times gives above error message.
if i try with some other login , the behaviourseems to be same as my login
Can anyone tell this why this inconsistency behaviour of system during GR for sub contracting item..
Regards,
Suresh.P

go to SE38, here type the program RM07CUFA,
click on execute... type ur mov type 541... here make the purchase order field from display to optional..
this will effected for new subcontracting scenerio....

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i don't know that i am a correct place, but i have a question about a bea weblogic proxy plugin.
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This one has given me the run around for several days now. I
had exactly the same condition. The fix, in my case, was as
follows.
Uninstall Shockwave Player. I used the 'sw_uninstaller.exe'
file from the Adobe website as I had already downloaded it, but it
should do just as well to run C:\
Windows\System32\Macromed\Shockwave10\UNWISE.EXE or 'Adobe
Shockwave Player' in 'Add/Remove Programs'.
Once Shockwave Player is uninstalled run the latest Mozilla
Firefox installation file over the top of the existing program even
if you are running the latest version. Currently this is 'Firefox
Setup 2.0.0.9.exe'.
Once that is done I found that the Shockwave plugin installed
correctly. It appears, if you need to reinstall Firefox for any
reason, you also need to uninstall Shockwave (and probably Flash
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Proxy plugin misbehaves on certain ppath

I have the following definitions in obj.conf of iplanet 4.1 SP11 under solaris
5.7.
<Object name="spotbid" ppath="*/spotbid/*">
Service fn="wl_proxy" WebLogicHost="###.###.###.####" WebLogicPort="7012" DebugConf
igInfo="ON"
</Object>
<Object name="old" ppath="*">
Service fn="wl_proxy" WebLogicHost="###.###.###.####" WebLogicPort="8009" DebugConf
igInfo="ON"
</Object>
The problem:
Every single request goes to the spotbid even if the request does not go to start
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If I change from ppath="*/spotbid/*" to ppath="*/nothing/*"
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"spotbid" is the user iplanet runs under. It is also the first directory in the
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I have tried this with the proxy plugins from weblogic 5.1 and 6.1 and both exhibit
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I tried myself with playing proxy settings of browser along with above configuration.Finally I got it.

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I followed the MASTPlugin example, as I am trying to do something similar, except my video playback is handled via a SWC (added to the DisplayTrait). If I just insert a plain VideoElement as the preroll and load a flv it plays fine, so its something specific to my MediaElement impl, but I can't figure out why it doesn't display until I hit pause.
Any help would be greatly appreciated, I've already burned hours trying to figure this out.
Also, looking at the use case chart below, I probably actually need to create a reference plugin. Does anyone have an example of a reference plugin?
http://help.adobe.com/en_US/OSMF/1.0/Dev/WSc6f922f643dd2e6d-12f30d7b1262b59cb0d- 7ffe.html

The behavior you're describing sounds like a bug -- if you can post a small, self-contained example that reproduces the problem, that would be
very helpful.
You might also want to look at DurationElement and SWFElement. When you wrap the latter in the former, you can display a SWF but augment it with the ability to play, pause, have a duration, and seek. The ExamplePlayer sample app has at least one example showing how to use this (I think it's called "Timed Image" and uses ImageElement rather than SWFElement, but the approach is the same).
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Has this been changed for the latest SP?
I am holding out some hope that maybe the documentation is incorrect.... Debug=ALL still works for 8.1 sp4

all the options seem to be there and working.
we are using DEBUG=ERR, since ALL crashes linux when the log grows to 2GB!

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Hi All,
Iam using Iplanet proxy plug-in with BEA weblogic6.1. In simple terms. the iplanet webserver proxies any dynamic requests to the application tier(wls6.1)
And we have configured the proxy plug-in to show the debugging information on to __WebLogicBridgeConfig page.
Now, could somebody explain more about the "requests:" and "successful requests:" that is been shown on the iplanet proxy plugin's __WebLogicBridgeConfig ???
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"requests:2000" "successful requests:1900"
then what happened to these 2000-1900=100 requests.....why is there difference and why does this happen???
how can calculate these UNsuccessful requests in my iplanet proxy logs ???
please advise. I would really really appreciate your help on this.
-san

In more simple terms and to eloborate more on what iam asking, how can an HTTP request become unsuccessful ?
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-sangita

Wls 7.0 sp2 proxy plugin issue with iplanet6.x and wls 6.1 sp3 app server

Hi,
I've a setup with iplanet 6.x webserver using the wls 7.0 sp2 proxy plugin to
route requests to the clustered app server instances (2 of them) that are in wls
6.1 sp3.
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onto the other app server instance. The error that I see in the wlproxy.log is
as follows:
*******Exception type [PROTOCOL_ERROR] raised
at line 654 of URL.cpp
Thu Nov 13 11:30:08 2003 failure on sendRequest() w/ recycled connection
to Instance1:7001, numfailures=1
Thu Nov 13 11:30:08 2003 Marking Instance1:7001 as bad
Thu Nov 13 11:30:08 2003 got exception in sendRequest phase:
PROTOCOL_ERROR [line 654 of URL.cpp]: unexpected EOF
reading HTTP status at line 1010
Thu Nov 13 11:30:08 2003 Failing over after sendRequest exception
Thu Nov 13 11:30:08 2003 attempt #1 out of a max of 5
Has anyone seen this issue? Can anyone explain why this issue is occuring.?
Thanks.

Did you find a solution for this problem?
I have somthing very similar going on where I am currently working.
Thanks!
Andy.
"Simple Guy" <[email protected]> wrote:
>
Hi,
I've a setup with iplanet 6.x webserver using the wls 7.0 sp2 proxy plugin
to
route requests to the clustered app server instances (2 of them) that
are in wls
6.1 sp3.
The issue is, I'm noticing that the session is not sticky and is getting
routed
onto the other app server instance. The error that I see in the wlproxy.log
is
as follows:
*******Exception type [PROTOCOL_ERROR] raised
at line 654 of URL.cpp
Thu Nov 13 11:30:08 2003 failure on sendRequest() w/ recycled connection
to Instance1:7001, numfailures=1
Thu Nov 13 11:30:08 2003 Marking Instance1:7001 as bad
Thu Nov 13 11:30:08 2003 got exception in sendRequest phase:
PROTOCOL_ERROR [line 654 of URL.cpp]: unexpected EOF
reading HTTP status at line 1010
Thu Nov 13 11:30:08 2003 Failing over after sendRequest exception
Thu Nov 13 11:30:08 2003 attempt #1 out of a max of 5
Has anyone seen this issue? Can anyone explain why this issue is occuring.?
Thanks.

Inconsistent behaviour of proxy plugin

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