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Task
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Resolution: Done
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Major
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10.1.0.Final
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None
Services may have dependents that can't work if they are not present. Removal operations should prevent, or least warn the user then he is about to remove a service that may have side effects.
Take a look at this example:
[standalone@localhost:9990 /] /subsystem=undertow/configuration=filter/response-header=test:add(header-name=X-test, header-value=test)
{"outcome" => "success"}
[standalone@localhost:9990 /] /subsystem=undertow/server=default-server/host=default-host/filter-ref=test:add()
{"outcome" => "success"}
[standalone@localhost:9990 /] /subsystem=undertow/configuration=filter/response-header=test:remove()
{
"outcome" => "success",
"response-headers" => {
"operation-requires-reload" => true,
"process-state" => "reload-required"
}
}
[standalone@localhost:9990 /] :reload()
{
"outcome" => "success",
"result" => undefined
}
[standalone@localhost:9990 /] /core-service=management:read-boot-errors()
{
"outcome" => "success",
"result" => [{
"failed-operation" => {
"operation" => "add",
"address" => [
("subsystem" => "undertow"),
("server" => "default-server"),
("host" => "default-host"),
("filter-ref" => "test")
]
},
"failure-description" => "{\"WFLYCTL0412: Required services that are not installed:\" => [\"jboss.undertow.filter.test\"],\"WFLYCTL0180: Services with missing/unavailable dependencies\" => [\"jboss.undertow.server.default-server.default-host.filter-ref.test is missing [jboss.undertow.filter.test]\"]}",
"services-missing-dependencies" => ["jboss.undertow.server.default-server.default-host.filter-ref.test is missing [jboss.undertow.filter.test]"]
}]
}
A new Undertow filter is created and assigned to a host. The filter is then removed, but the host still needs it.
The problem is only seen after a server reload. The same thing happens when you remove, i.e. the default Servlet Container or the Bean pool of the EJB subsystem.
My proposal is to at least add a response head to the remove operations listing affected (dependent) services. This would complement the new WildFly 11 capability registry.
- is related to
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JBEAP-10033 Introduce capabilites in undertow subsystem
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- Closed
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WFLY-8473 Introduce capabilites in undertow subsystem
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- Closed
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