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What is the difference between the installedApps folders and the "applications" on the websphere application server?

Usually, when we create both DMGR and Node profiles, we have the application folder under the path $ DMGRPROFILE_HOME / config / cells / $ cellName and installedApps under the path $ NODEPROFILE_HOME /. All applications that will be deployed will be placed in the installedApps folder . And we can also see the same content in the application folder above. So my question is what is the difference between the two? why do websphere application server place such applications in the application folder other than installedApps ? what else, for example, if I need to update a single file called web.xml of my deployed military application file, do I need to update the file in both ways above?

Thanks in advance

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applications Dmgr , .

installedApps Node node. .

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, , . webapp.war/WEB-INF/classes/com/yourcompany/project/package1/YourClass.class.

, , , , , .

, , , JSP. Node installedApps. ( WebSphere APP_INSTALL_ROOT, ${USER_INSTALL_ROOT}/installedApps.)

web.xml

web.xml, , . installedApps, . - :

$NODEPROFILE_HOME/config/cells/cellName/applications/earName.ear/deployments/applicationName/warName.war/WEB-INF

$DMGRPROFILE_HOME, Node ( syncNode.sh, ).

.

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