What causes "Timed out server" in WL Cluster and a question about session in WL Cluster

          Hi.
          We are using Weblogic 5.1 with SP 8. We have been encountering a problem in our
          clustered environment. We setup our (clustered)environment to have 3 instances(WL1,
          WL2, WL3) of weblogic running in one box. When one instance, let say WL1, responds
          to a request(1st request for a session), the session is binded to that instance
          till the session is terminated/expired. Which means succeeding request for that
          session can only be served by WL1(we tried stopping WL1 but WL2 and WL3 wont accept
          the request--which only causes the page to time out). Shouldnt it behave in such
          a way that other instances can get serve the request(failover)?
          Also, occasionally we encounter "Time out server" in one of the instance of WL.
          When this happens, that instance no longer takes in requests. Would anyone know
          what causes "Time out server"? Does it only happen in clustered environment?
          Need some help ASAP.
          Tnx in adv.

What do you have in front of WebLogic for Load Balancing?
 What are the IP addresses/hostnames of your three instances? What hostname are
 you using in your http requests? Is your DNS configured to do failover?
 Make sure that you have session replication turned on. See the edocs.bea.com.
 Mike Reiche
 "clstrproblem" <[email protected]> wrote:
 >
 >Hi.
 >
 >We are using Weblogic 5.1 with SP 8. We have been encountering a problem
 >in our
 >clustered environment. We setup our (clustered)environment to have 3
 >instances(WL1,
 >WL2, WL3) of weblogic running in one box. When one instance, let say
 >WL1, responds
 >to a request(1st request for a session), the session is binded to that
 >instance
 >till the session is terminated/expired. Which means succeeding request
 >for that
 >session can only be served by WL1(we tried stopping WL1 but WL2 and WL3
 >wont accept
 >the request--which only causes the page to time out). Shouldnt it behave
 >in such
 >a way that other instances can get serve the request(failover)?
 >
 >Also, occasionally we encounter "Time out server" in one of the instance
 >of WL.
 >When this happens, that instance no longer takes in requests. Would anyone
 >know
 >what causes "Time out server"? Does it only happen in clustered environment?
 >
 >
 >Need some help ASAP.
 >
 >Tnx in adv.
 >
 >
 >
 >
 >
 >
 >

Similar Messages

Timed Out Server

Hello,
 I have tried SP5, but I still have some problems and
 questions...........could someone pls answer these, so that I know if
 this is some known problem with the product, or some configuration
 issue, or if anyone has seen some similar problems.........
 Q:
 What does the following property mean, and what should a reasonable
 value be for it :
 --> ISSUE 31575: A new multicast property
 ("weblogic.cluster.multicastSendDelay") which handles
 the buffer overflow properties has been added.
 Q:
 What does the time-out in the ClusterManager represent, and is it some
 default value, or can it be configured ? Also, is it related to the
 Timed Out SErver error that I mention below?
 -->ISSUE 30924: Enhanced timeout in ClusterManager and fixed a problem
 with servers not shutting down.
 Q: What is written below is not clear to me....is it saying that now
 there should be a message of the type : "Creating RemoteMemberInfo for"
 + configdetails ??
 I have applied SP5, and also checked it with the weblogic.Admin utility,
 and no SP4 file is there anymore, but I am still getting the older
 "Joined cluster mycluster at address 224.0.0.1:7001"
 message.............
 -->ISSUE 32054:
 Improved log notification when a server is aware of other servers in the
 cluster. The string looks like: "Creating RemoteMemberInfo for" +
 configdetails. In
 general, when using WebLogic Server 4.0.X through 5.1.X, the message of
 "Joined cluster mycluster at address 224.0.0.1:7001", does not
 necessarily mean
 that there is anyone else in the cluster. In 4.5 you could tell when
 there was really another server in the cluster by the server to server
 RJVM messages when
 each node found the others. But, in 5.1 this became no longer possible.
 This change improves the log notification and solves this problem.
 Q: How does one turn on the debug flag with the IIS plug in ? Is it
 mentioned in the iisproxy.ini file ? I couldn't find anything like this
 in the admin docs for plug-in configuration ........
 -->ISSUE 28929: Added the ability to have Debug flags with
 NSAPI/ISAPI/ASAPI plug-ins. Now Debug flags can be turned on in the
 configuration file of the plug-in.
 PROBLEM:
 When both of the servers in the cluster are brought up, and they start
 receiving requests, the following happens for some time on one server,
 till which time apparently both share the load....
 Mo Aug 22 12:32:39 GMT+02:00 2000: <Cluster> memberPresent
 -68329250512188744
 40S134.28.77.101:[7001,7001,7002,7002,7001,-1]
 Mo Aug 22 12:32:46 GMT+02:00 2000: <Cluster> memberPresent
 -68329250512188744
 40S134.28.77.101:[7001,7001,7002,7002,7001,-1]
 Mo Aug 22 12:32:56 GMT+02:00 2000: <ServletContext-General> file:
 init
 Mo Aug 22 12:33:26 GMT+02:00 2000: <Cluster> Timed out server
 then the other server stops taking any load and all requests go to this
 server............However, if this servlet is brought down, the other
 takes over the load...........
 however, bringing up a new server in the cluster, or reviving the one
 brought down, the following happens :
 weblogic.utils.NestedError: Tried to update secondary, but it thought it
 was the primary - with nested exception:
 [weblogic.cluster.replication.BadStatusException: update found
 -1286423340868561093 but it is not the secondary]
 the member present messages appear again for some time, and then again
 there is the Timed Out Server message.......though all of this happens
 pretty randomly at this stage, but the problem is consistent...........
 If someone has any ideas, pls let me know.........
 environment:
 2 servers in a cluster with NT...........IIS proxy..........
 regards,
 farhat


Hello,
 I have tried SP5, but I still have some problems and
 questions...........could someone pls answer these, so that I know if
 this is some known problem with the product, or some configuration
 issue, or if anyone has seen some similar problems.........
 Q:
 What does the following property mean, and what should a reasonable
 value be for it :
 --> ISSUE 31575: A new multicast property
 ("weblogic.cluster.multicastSendDelay") which handles
 the buffer overflow properties has been added.
 Q:
 What does the time-out in the ClusterManager represent, and is it some
 default value, or can it be configured ? Also, is it related to the
 Timed Out SErver error that I mention below?
 -->ISSUE 30924: Enhanced timeout in ClusterManager and fixed a problem
 with servers not shutting down.
 Q: What is written below is not clear to me....is it saying that now
 there should be a message of the type : "Creating RemoteMemberInfo for"
 + configdetails ??
 I have applied SP5, and also checked it with the weblogic.Admin utility,
 and no SP4 file is there anymore, but I am still getting the older
 "Joined cluster mycluster at address 224.0.0.1:7001"
 message.............
 -->ISSUE 32054:
 Improved log notification when a server is aware of other servers in the
 cluster. The string looks like: "Creating RemoteMemberInfo for" +
 configdetails. In
 general, when using WebLogic Server 4.0.X through 5.1.X, the message of
 "Joined cluster mycluster at address 224.0.0.1:7001", does not
 necessarily mean
 that there is anyone else in the cluster. In 4.5 you could tell when
 there was really another server in the cluster by the server to server
 RJVM messages when
 each node found the others. But, in 5.1 this became no longer possible.
 This change improves the log notification and solves this problem.
 Q: How does one turn on the debug flag with the IIS plug in ? Is it
 mentioned in the iisproxy.ini file ? I couldn't find anything like this
 in the admin docs for plug-in configuration ........
 -->ISSUE 28929: Added the ability to have Debug flags with
 NSAPI/ISAPI/ASAPI plug-ins. Now Debug flags can be turned on in the
 configuration file of the plug-in.
 PROBLEM:
 When both of the servers in the cluster are brought up, and they start
 receiving requests, the following happens for some time on one server,
 till which time apparently both share the load....
 Mo Aug 22 12:32:39 GMT+02:00 2000: <Cluster> memberPresent
 -68329250512188744
 40S134.28.77.101:[7001,7001,7002,7002,7001,-1]
 Mo Aug 22 12:32:46 GMT+02:00 2000: <Cluster> memberPresent
 -68329250512188744
 40S134.28.77.101:[7001,7001,7002,7002,7001,-1]
 Mo Aug 22 12:32:56 GMT+02:00 2000: <ServletContext-General> file:
 init
 Mo Aug 22 12:33:26 GMT+02:00 2000: <Cluster> Timed out server
 then the other server stops taking any load and all requests go to this
 server............However, if this servlet is brought down, the other
 takes over the load...........
 however, bringing up a new server in the cluster, or reviving the one
 brought down, the following happens :
 weblogic.utils.NestedError: Tried to update secondary, but it thought it
 was the primary - with nested exception:
 [weblogic.cluster.replication.BadStatusException: update found
 -1286423340868561093 but it is not the secondary]
 the member present messages appear again for some time, and then again
 there is the Timed Out Server message.......though all of this happens
 pretty randomly at this stage, but the problem is consistent...........
 If someone has any ideas, pls let me know.........
 environment:
 2 servers in a cluster with NT...........IIS proxy..........
 regards,
 farhat

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In article <[email protected]>, Matt Karwowski wrote:
> I am running GroupWise 8.0.2 on an HP DL360G G7 with 24 GB of RAM and Dual Xeon X5650
> processors under Server 2008 R2 Sp1. Post Office is using roughly 562 GB of an 819
> GB Disk ... I am experiencing client slowness at regular intervals. Roughly every
> three weeks. The solution tends to be to restart the server and give it a fresh start,
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> I suspect my best solution is to start a regular defrag process as my volume is now
> 29% defragmented [yeah NTFS :( ]
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Andy's Profile: http://forums.novell.com/member.php?userid=75037

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What causes "Timed out server" in WL Cluster and a question about session in WL Cluster

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