Vmware, Inc.

Ivailo Vladimirov Loboshki

Ivaylo Radoslavov Radev

Tomo Vladimirov Simeonov

Vladislav Milenov Atanasov

Yasen Fotev Kalchev

Dimitar Dimitrov

Methods, apparatus, systems and articles of manufacture manage services in distributed systems are disclosed. An example apparatus includes at least one storage device, and at least one processor to execute instructions to at least perform an update of a first virtual machine in response to a determination that the first virtual machine is to enter a maintenance mode, the update based on storing a first service in a local service registry of the first virtual machine, in response to an unsuccessful update of the first virtual machine, restore the first virtual machine based on a snapshot, and provide the first service from a system service registry to a second virtual machine in response to a query from the second virtual machine for the first service.

Systems, methods and apparatus to manage services in distributed systems

Described herein are systems, methods, and software to manage the downtime associated with updates and configuration modification to the database. In one implementation, a migration service initiates a migration of data from a first database to a second database. The migration service further identifies, in a transaction log, modifications to the data in the first database after initiating the migration of the data and, for each modification, applies one or more transformation rules to the modification to make a compliant modification and updates the second database with the compliant modification. Once the migration is complete and no more modifications exist in the transaction log, the migration service may transition from using the first database as an active database to using the second database as the active database.

Limiting downtime associated with migrations of databases

Methods, apparatus, systems and articles of manufacture manage services in distributed systems are disclosed. An example distributed system includes a first virtual machine including a first storage device to store a first service registry for a plurality of virtual machines, and a second virtual machine, of the plurality of virtual machines, including a second storage device to store a second service registry for the second virtual machine, and a proxy service registrar having an interface to selectively provide a first service from the first service registry or the second service registry responsive to a query of the second virtual machine for the first service.

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Sofia, Bulgaria

Ivailo Vladimirov Loboshki