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TIBCO GridServer® 7.1.0

# Conflicts

A conflict between two Grid Libraries means that these libraries cannot be loaded concurrently. When there is a conflict between a loaded Grid Library and a Grid Library required by a Service, the Engine must restart to unload the current libraries and load the requested library.

The following circumstances result in a conflict:

| • | Version Conflict The most common conflict arises via versioning, and typically when upgrading versions or using more than one version of the same library concurrently. This conflict arises when a Grid Library with the same `grid-library-name` as the requested Grid Library, but a different version, is loaded.

| • | Explicit Conflict There can be situations in which different Grid Libraries can conflict with each other due to conflicting native libraries, different versions of Java classes, and so on. Because the Engine cannot determine these implicitly, the `conflict` element can be used to specify Grid Libraries that are known to conflict with this Grid Library.

Additionally, the value of the grid-library-name can be set to `"*"`. This means that this Grid Library can conflict with all other Grid Libraries (aside from its dependencies), and it is guaranteed that no other Grid Libraries load concurrently with this Grid Library. Note that this is only allowed if the Grid Library is not a dependency; if the `"*"` is used as a conflict in a Grid Library that is a dependency, a verification error occurs.

| • | Dynamic Version Conflict A Grid Library conflict occurs if dynamic versioning is used, and the latest version of a Grid Library or Grid Library dependency has changed due to an addition or removal of a dependency since the Grid Library has been loaded.

| • | Variable Substitution Conflict A Grid Library conflict occurs if its variable substitution file has changed since it has been loaded.

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