| CPC G06F 16/2228 (2019.01) | 11 Claims |
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1. A method performed by a computer for creating an entry in a key-value store, the method comprising:
receiving, in real time, time-series data items each of which includes a respective time stamp and a value;
buffering the received time-series data items in a latest entry associated with a latest key in the key-value store, the key-value store storing a plurality of entries each of which includes a pair of a key and a value set, the key of each entry being set with a respective time range defined by a given time width, the value set of each entry including one or more of time-series data items;
receiving, from a plurality of programs, a plurality of read requests to the key-value store, each read request of the plurality of read requests including a time width to which data to be read by the each read request belongs;
determining a first time width based on a longest time width among time widths in the plurality of read requests, the first time width being a time width equal to or longer than the longest time width; and
creating a first entry that includes a pair of a first key and a first value set to store the first entry to the key-value store, the first key being set with a first time range having the first time width, the first value set including a plurality of time-series data items that belongs to the first time range among the buffered time-series data items in the latest entry.
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