| 摘要 |
A method for software upgrade in a first node operable in a distributed computing system is disclosed. The method comprises receiving, by a receiving component, a new version of application software and a new version of infrastructure software and installing, by an installation component, the new version of application software and the new version of infrastructure software. A first startup component starts the new version of infrastructure software. A second startup component starts an old version of application software to run with the new version of the infrastructure software. Responsive to an indication from a second node that the new version of application software and the new version of infrastructure software have been installed at the second node, the old version of application software is quiesced by a transition component. The old version is unloaded the new version of application software is loaded.
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