WebLogic Server: 32-bit Installation versus 64-bit Installation [ID 1297686.1]

Can we run WLS 32-bit with a 64-bit JDK? We do not recommend this because when you install WLS in 32-bit mode, 64-bit native libraries are not installed. Also, the scripts installed during 32-bit mode WLS installation will default and point to 32-bit libraries. This applies the other way around as well to WLS 64-bit ...

JDBC Connection Pool Setup In WebLogic To Handle Database Server Restarts [ID 887199.1]

Quite often, WebLogic JDBC connection pools are not setup correctly and when the assocaited DB Server is re-started, this causes Applications hosted in WebLogic to become unavailable and huge log files created with endless errors, due to invalid JDBC connections Solution The root cause of this problem is that WebLogic JDBC connections to the Database Server ...

What is the T3 Protocol in WebLogic Server (WLS)? [ID 887300.1]

T3 is Oracle WebLogic Server’s proprietary RMI protocol. Basically, t3 protocol is a protocol that sits on top of Java RMI. There is some documentation available. RMI communications in WebLogic Server use the T3 protocol to transport data between WebLogic Server and other Java programs, including clients and other WebLogic Server instances. If you need ...

Setting WebLogic Server (WLS) Node Manager as “Plain” Type and Setting the Secure Listener to “False” [ID 879832.1]

Goal Would it pose a risk to our environment if we configured Node Manager as the “plain” type and set the SecureListener to “false”? Solution Administration Console users do not need to explicitly provide credentials to connect to Node Manager — the Node Manager username and password are available in the domain configuration and are ...

WebLogic Server (WLS) Managed Servers Losing Connectivity to Admin Server

Symptoms Your managed servers are losing connection with one another and with the cluster in which they belong. The logs indicate that the servers are running correctly, but unicast messages are being lost. When enough unicast messages are lost, the server is removed from the cluster. However, the server is still there, so it is ...

Enabling stdout logging when running WebLogic Server as a Windows service [ID 858746.1]

  Navigate to the domain directory.   Run the below command to uninstall the existing Windows services.   uninstallService.cmd "ServiceName" Output will be as: C:\BEA\WLS10\user_projects\domains\wls10_domain1>uninstallService.cmd "beasvcwls10_domain1_AdminServer" C:\BEA\WLS10\user_projects\domains\wls10_domain1>echo off Stopping beasvc wls10_domain1_AdminServer. beasvc wls10_domain1_AdminServer stopped. beasvc wls10_domain1_AdminServer removed. Open “installService.cmd” file from your domain directory and make the below change for JAVA_OPTIONS. set JAVA_OPTIONS=-Dweblogic.Stdout="C:\std.out" -Dweblogic.Stderr="C:\std.err" Once ...

Is a WebLogic Server (WLS) Application Ready to Serve a Request before It is in Running Mode? [ID 868404.1]

Answer The answer is no. A WebLogic Server web application is not able to serve requests until it is in running mode.    

Starting a Managed Server in MSI mode When Its Administration Server Is Down Can Take a Very Long Time [ID 859568.1]

Symptoms When running a WLP application and starting the managed server in MSI mode it takes a very long time for the server to start due to the large number of attempted LDAP connections to the administration server. Cause Starting a managed server in MSI mode when its administration server is down could take a ...

Failover in two separate weblogic clusters in apache config

Got through a post here : http://stackoverflow.com/questions/12932055/how-to-configure-weblogic-plugin-in-apache-for-the-same-location-for-different-c The person wants to add two separate cluster URLs in apache as follows: <Location /service> WebLogicCluster 10.0.0.1:7045,10.0.0.2:7045,10.0.0.3:7045,10.0.0.4:7045 SetHandler weblogic-handler </Location> If done it will have following consequences: Requests will follow session stickiness for each member in cluster On failure it will assume that any other member in cluster ...

Check High CPU issue in weblogic

====================================================== FIND HIGH CPU INFORMATION IN JAVA PROCESS Oracle_Support: Unexpected High CPU Usage with WebLogic Server (WLS) Support Pattern [ID 779349.1] ======================================================== prstat -a prstat -L -p 26217 1 1 > prstat_out.out prstat -L -p 20750 1 1 PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/LWPID 14255 weblogic 5949M 5842M run 11 0 ...