CHECKPOINT AND RESTORE BASED STARTUP OF EXECUTOR NODES OF A DISTRIBUTED COMPUTING ENGINE FOR PROCESSING QUERIES

Abstract: a system performs efficient startup of executors of a distributed computing engine used for processing queries, for example, database queries. the system starts an executor node and processes a set of queries using the executor node to warm up the executor node. the system performs a checkpoint of the warmed-up executor node to create an image. the image is restored in the target executor nodes. the system may store a checkpoint image for each configuration of an executor node. the configuration is determined based on various factors including the hardware of the executor node, memory allocation of the processes, and so on. the user or restore based on checkpoint images improves efficiency of execution of the startup of executor nodes.

Inventor(s): Xinyang Ge, Lixiang Ao, Haonan Jing, Aaron Daniel Davidson

CPC Classification: G06F16/24549 ({Run-time optimisation})

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