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Weblogic configuration of memory and common parameters

2011-06-20 14:44:52| 分类： IT | 标签： |举报 |字号大中小订阅

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1, WebLogic memory overflow

Recently visited a sudden increase portal traffic, always out of memory, frequent downtime, no parameters to adjust a lot of work, accidentally discovered Weblogic domain is constantly increasing, the culprit turned out to be the diagnostic file Weblogic, Weblogic is also the cause of memory the main reason. When the Weblogic startup when loading the diagnosis on each Server document, taking up most of the memory allocation, the larger the file the user has visited result of the greater, after he was removed to restart the service, surprisingly only eight Server took 6 minutes, only 7-8 minutes to deploy the project also has been running smoothly, no memory overflow.

The document addresses:

/bea/user_projects/domains/(domain_name)/servers/(Server_name)/data/store/diagnostics/*.DAT

(Note: AdminServer 1M under file about the diagnosis of normal)

However, the file will continue to generate increases, our domain is not configured set of documents related to start diagnosis, Bea sale can not explain, but you can start by trying to increase the parameter (-Dcom.bea.wlw.netui.disableInstrumentation = true

) To control the growth of the diagnostic file in the / bea / user_projects / domains / (domain_name) / bin / startWebLogic.sh in:

if ["$ (WLS_REDIRECT_LOG)" = ""]; then

echo "Starting WLS with line:"

echo "$ (JAVA_HOME) / bin / java $ (JAVA_VM) $ (MEM_ARGS) $ (JAVA_OPTIONS)-Dcom.bea.wlw.netui.disableInstrumentation = true-Dweblogic.Name = $ (SERVER_NAME)-Djava.security.policy = $ (WL_HOME) / server / lib / weblogic.policy $ (PROXY_SETTINGS) $ (SERVER_CLASS) "

$ (JAVA_HOME) / bin / java $ (JAVA_VM) $ (MEM_ARGS) $ (JAVA_OPTIONS)-Dcom.bea.wlw.netui.disableInstrumentation = true-Dweblogic.Name = $ (SERVER_NAME)-Djava.security.policy = $ ( WL_HOME) / server / lib / weblogic.policy $ (PROXY_SETTINGS) $ (SERVER_CLASS)

else

echo "Redirecting output from WLS window to $ (WLS_REDIRECT_LOG)"

$ (JAVA_HOME) / bin / java $ (JAVA_VM) $ (MEM_ARGS) $ (JAVA_OPTIONS)-Dcom.bea.wlw.netui.disableInstrumentation = true-Dweblogic.Name = $ (SERVER_NAME)-Djava.security.policy = $ ( WL_HOME) / server / lib / weblogic.policy $ (PROXY_SETTINGS) $ (SERVER_CLASS)> "$ (WLS_REDIRECT_LOG)" 2> & 1

This parameter controls netui diagnostic file generation.

At the same time, you can / bea / user_projects / domains / (domain_name) / bin / setDomainEnv.sh set the print parameters of GC log analysis:

MEM_ARGS = "-Xms2048m-Xmx2048m-verbosegclog: gc.log"

Export MEM_ARGS

The parameters in the / bea / user_projects / domains / (domain_name) / next output gc.lgo

2, Portal Domain adjustment

Domain directory / bin / setDomainEnv, the following parameters:

Mark	Production mode is set	Explain
DOMAIN_PRODUCTION_MODE	true	This parameter determines whether the Domain is running in a production environment, you can create a Domain, select the running mode, you can manually adjust the parameters
IterativeDevFlag	false	Is automatically compiled
DebugFalg	false	Debugger is enabled
TestConsoleFlag	False	Testing tools to support JMS
LogErrorsToConsoleFlag	False	Whether the error log output to the screen
verboseLogginFlag	False	Debug log is output
PointbaseFlag	False	It automatically starts Pointbase

3, Weblogic configuration commonly used parameters

Serial number	Project	Content	Description	Reference value	Photos
1	Domain> Environment> Cluster> General>	Default Load Algorithm:	Set cluster load balancing strategy	Round-robin: cycling Weight-based: the weight (do not configure this policy to address the Server configuration to use the weight, see 2) Random: Random Round-robin-affinity / Weight-based-affinity / Random-affinity of these three parameters for the hardware to do front-end load balancing settings	Figure 1
2	Domain> Environment> Servers> ManagedServer> Cluster>	Cluster Weight:	Setting the distribution of each Managed Server weight	Default of 100, set the percentage of total 100	Figure 2
3	Domain> Environment> Servers> Server> Logging>	Stdout Serverity Threshold:	Logging level	Error	Figure 3
		Rotation Type: Minimum File Size	The type of log rolling Create new log file size	By Size 5000k
		Limit number of retained files Log Files To Retain: [n]	Limit the number of log files retained To keep the number of log files	Select 10
4	Domain> Connection Pools> Configuration> Connections	Initial Capacity: Maximum Capacity:	Set the initial capacity Maximum capacity	Proposed initial capacity and the maximum capacity set to equal values, and to consider the number of concurrent threads to access the database to adjust the parameters
5	Domain> Connection Pools> Configuration> Connections	URL	Cluster Database URL set method	For example: jdbc: oracle: thin: @ (Description = (Address_list = (address = (host = scdb1_vip) (Protocol = tcp) (port = 1521)) (Address = (host = scdb2_vip) (Protocol = tcp) (port = 1521)) (Load_balance = yes) (Failover = yes)) (Connect_data = (service_name = scdb)))

Weblogic.xml the parameters:

Cluster deployment parameters (single cluster environment are available):

<wls:session-descriptor>

<wls:persistent-store-type> replicated_if_clustered </ wls: persistent-store-type>

<wls:sharing-enabled> true </ wls: sharing-enabled>

</ Wls: session-descriptor>

Automatically compile the detection time

<wls:jsp-descriptor>

<wls:page-check-seconds> 60 </ wls: page-check-seconds>

</ Wls: jsp-descriptor>

<wls:container-descriptor>

<wls:servlet-reload-check-secs> 60 </ wls: servlet-reload-check-secs>

</ Wls: container-descriptor>

Third, cluster projects and solutions to deploy error

Cluster project to deploy, there would appear inconsistent version, resulting in the deployment of failure or very slow deployment, deployment error message:

Failure occured in the execution of deployment request with ID '116857440499 'for task '2'.
Error is: 'weblogic.management.DeploymentException: J2EE: one hundred sixty thousand one hundred and forty-nine Error while processing library references.
Unresolved application library references, defined in weblogic-application.xml:
Extension-Name: beehive-controls-1.0, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false,
Extension-Name: weblogic-controls-1.0, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false,
Extension-Name: wls-commonslogging-bridge, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false. '
weblogic.management.DeploymentException: J2EE: one hundred and sixty thousand one hundred forty-nine Error while processing library references.
Unresolved application library references, defined in weblogic-application.xml:
Extension-Name: beehive-controls-1.0, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false,
Extension-Name: weblogic-controls-1.0, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false,
Extension-Name: wls-commonslogging-bridge, Specification-Version: 1, Implementation-Version: 1.0, exact-match: false.

......

Solution:

Weblogic all the libraries will not only fat but also simultaneously released in less than a Cluster to the AdminServer, the change in all libraries of the Target, shown in Figure

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