{"record":{"id":"038c350d360ec13a","repo":"puppetlabs/puppet","slug":"failed-to-transition-the-service-name-service-t","errorCode":null,"errorMessage":"Failed to transition the %{service_name} service to the %{final_state} state. Detail: %{detail}","messagePattern":"Failed to transition the %(.+?) service to the %(.+?) state\\. Detail: %(.+?)","errorType":"exception","errorClass":"Puppet::Error","httpStatus":null,"severity":"error","filePath":"lib/puppet/util/windows/service.rb","lineNumber":403,"sourceCode":"            # up and destroyed. Thus there is a chance that when the service is\n            # in either of these states, its service thread may not yet be ready\n            # to perform the state transition (it may not even exist).\n            if UNSAFE_PENDING_STATES.include?(initial_state)\n              Puppet.debug _(\"The service is in the %{pending_state} state, which is an unsafe pending state.\") % { pending_state: SERVICE_STATES[initial_state] }\n              wait_on_pending_state(service, initial_state, timeout)\n              initial_state = FINAL_STATES[initial_state]\n            end\n\n            Puppet.debug _(\"Transitioning the %{service_name} service from %{initial_state} to %{final_state}\") % { service_name: service_name, initial_state: SERVICE_STATES[initial_state], final_state: SERVICE_STATES[final_state] }\n\n            yield service\n\n            Puppet.debug _(\"Waiting for the transition to finish\")\n            wait_on_state_transition(service, initial_state, final_state, timeout)\n          end\n        end\n      rescue => detail\n        raise Puppet::Error, _(\"Failed to transition the %{service_name} service to the %{final_state} state. Detail: %{detail}\") % { service_name: service_name, final_state: SERVICE_STATES[final_state], detail: detail }, detail.backtrace\n      end\n      private :transition_service_state\n\n      # @api private\n      # perform QueryServiceStatusEx on a windows service and return the\n      # result\n      #\n      # @param [:handle] service handle of the service to query\n      # @return [SERVICE_STATUS_PROCESS struct] the result of the query\n      def query_status(service)\n        size_required = nil\n        status = nil\n        # Fetch the bytes of memory required to be allocated\n        # for QueryServiceConfigW to return succesfully. This\n        # is done by sending NULL and 0 for the pointer and size\n        # respectively, letting the command fail, then reading the\n        # value of pcbBytesNeeded\n        FFI::MemoryPointer.new(:lpword) do |bytes_pointer|","sourceCodeStart":385,"sourceCodeEnd":421,"githubUrl":"https://github.com/puppetlabs/puppet/blob/e227c27540975c25aa22d533a52424a9d2fc886a/lib/puppet/util/windows/service.rb#L385-L421","documentation":"This is the catch-all wrapper in transition_service_state: any exception raised while moving a service to its final state (the StartServiceW/ControlService failure, state-transition timeouts, unexpected state changes) is re-raised as Puppet::Error with the service name, target state, and the original detail appended; the original backtrace is preserved. It fires from start, stop, resume, and the disable/enable paths that use transitions.","triggerScenarios":"Any exception inside the transition block or wait loops: 'Failed to start the service', 'Failed to send the ... signal', 'Timed out while waiting for the service to transition', or 'Unexpected transition to the ... state' while waiting. The detail string names the inner failure.","commonSituations":"Slow services exceeding the default timeout (common with database or agent services); services that crash during startup; SCM contention; the same root causes as the inner errors, surfaced wrapped.","solutions":["Read the Detail: segment to identify the real inner error and fix that (raise timeout, privileges, dependencies)","Pass a larger timeout: Service.start(name, timeout: 120) for slow-starting services","Check the Windows System event log for the service's own startup errors","If the detail says 'Timed out', measure how long the service really needs and size the timeout above it"],"exampleFix":"// before\nPuppet::Util::Windows::Service.start('slowdb')\n\n# after\nbegin\n  Puppet::Util::Windows::Service.start('slowdb', timeout: 180)\nrescue Puppet::Error => e\n  Puppet.err(\"slowdb did not start: #{e.message}\")\n  raise\nend","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"begin\n  Puppet::Util::Windows::Service.start(name, timeout: 120)\nrescue Puppet::Error => e\n  detail = e.message[/Detail: (.*)/, 1]\n  Puppet.err \"inner failure: #{detail}\"\n  # fix per inner cause: timeout -> raise timeout arg; privileges -> elevate\n  raise\nend","preventionTips":["Always read the Detail: segment; the fix belongs to the inner error, not this wrapper","Pass explicit timeouts sized to the slowest real startup (databases, agents)","Check the service's own event log entries when startup transitions fail"],"tags":["windows","service","win32","state-machine","wrapper","timeout"],"backgroundTag":"service-state-transition-failed","analyzedSha":"e227c27540975c25aa22d533a52424a9d2fc886a","analyzedAt":"2026-08-21T20:49:46.650Z","schemaVersion":2},"datasetVersion":"2026-08-21T23:17:16.201Z"}