Amazon Technologies, Inc.

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Sainath Chowdary Mallidi

Ilie Gabriel Tanase

Ankesh Khandelwal

Bryan Thompson

Bradley R Bebee

Divyakala Vel

Michael Schmidt

Navtanay Sinha

Yejin Yoon

Deep Saxena

Karthik Rajan

Herman Yusef Polloni Giacaman

Sudhanshu Gupta

Guangqiang Li

Geo T Varkey

Tiago Lima Salmito

Utkarsh Raj

Yigit Kiran

Systems and methods are described for dynamically allocating memory for responding to requests. In some aspects, a thread may be obtained, where the thread includes a request to use a portion of system memory to perform a query of a database, such as a graph database. The system may determine that the portion of memory is greater than available memory of a maximum managed memory size of the system, and may block the thread until additional memory becomes available. The maximum managed memory size may be configurable, and may be less than a total memory of the system. The system may then determine, based at least in part on a change in the available system memory, that the available system memory is equal to or greater than the portion of memory to satisfy the request, and cause the system to process the thread to provide a response to the query.

Dynamic bounded memory allocation

Systems and methods are described for allocating computing resources to load data into a database. In some aspects, a database service obtains a request to load a number of data chunks. Responsive to the request, the database service scales a number of worker threads to load the data chunks. The scaling may include selecting a maximum number of worker threads to load (e.g., concurrently) the data chunks based on a number of data chunks, and assigning individual worker threads to load individual data chunks. The scaling may additionally include tracking a number of available worker threads relative to the maximum number of worker threads to reassign a first worker thread to load another data chunk upon the completing loading a prior data chunk, or assign a new worker thread that has become available based on a change in the maximum number of worker threads.

Bulk loader scaling

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