Abstract: Methods, systems, and media for controlling append-only file rewrites are provided. In accordance with some embodiments, the methods comprising: determining a utilization of a shard of a database; determining whether the utilization exceeds a persistent storage utilization threshold; determining a recovery time to recover the shard from an append-only file; determining whether the recovery time exceeds a recovery time threshold; and when the utilization is determined to exceed the utilization threshold or when the recovery time is determined to exceed the recovery time threshold, causing an append-only-file rewrite to be performed.

Abstract: Methods, systems, and media for controlling append-only file rewrites are provided. In accordance with some embodiments, the methods comprising: determining a utilization of a shard of a database; determining whether the utilization exceeds a persistent storage utilization threshold; determining a recovery time to recover the shard from an append-only file; determining whether the recovery time exceeds a recovery time threshold; and when the utilization is determined to exceed the utilization threshold or when the recovery time is determined to exceed the recovery time threshold, causing an append-only-file rewrite to be performed.

Abstract: Methods, systems, and media for providing distributed database access during a network split. In some embodiments, the method comprises: receiving, at a node of N nodes, configuration information of the database which indicates which of the N nodes stores replicated shards of the database including master shards and corresponding slave shards, N being an odd number greater than one; identifying, after a network split, a subset of the N nodes which are capable of communicating with each other; receiving, by a proxy, a request to perform a write operation to an object in the database; determining that a second node included in the subset of the N nodes stores a master shard including the object; determining that the subset includes at least (N+1)/2 nodes; and causing the request to perform the write operation to be routed to the second node.

Abstract: Methods, systems, and media for controlling append-only file rewrites are provided. In accordance with some embodiments, the methods comprising: determining a utilization of a shard of a database; determining whether the utilization exceeds a persistent storage utilization threshold; determining a recovery time to recover the shard from an append-only file; determining whether the recovery time exceeds a recovery time threshold; and when the utilization is determined to exceed the utilization threshold or when the recovery time is determined to exceed the recovery time threshold, causing an append-only-file rewrite to be performed.

Abstract: Methods, systems, and media for controlling append-only file rewrites are provided. In accordance with some embodiments, the methods comprising: determining a utilization of a shard of a database; determining whether the utilization exceeds a persistent storage utilization threshold; determining a recovery time to recover the shard from an append-only file; determining whether the recovery time exceeds a recovery time threshold; and when the utilization is determined to exceed the utilization threshold or when the recovery time is determined to exceed the recovery time threshold, causing an append-only-file rewrite to be performed.

Abstract: Method, media, and systems for compressing objects, comprising: receiving a request to write a first object including a first key and a first value, wherein the first object is of a given type; receiving a request to write a second object including a second key and a second value, wherein the second object is of the given type; classifying the first object to a compression dictionary according to at least one rule based on a value of the first object and/or the key of the first object; classifying the second object to the compression dictionary according to at least one rule based on a value of the second object and/or the key of the second object; and compressing the first object and the second object based on the compression dictionary.

Abstract: Methods, systems, and media for providing distributed database access during a network split. In some embodiments, the method comprises: receiving, at a node of N nodes, configuration information of the database which indicates which of the N nodes stores replicated shards of the database including master shards and corresponding slave shards, N being an odd number greater than one; identifying, after a network split, a subset of the N nodes which are capable of communicating with each other; receiving, by a proxy, a request to perform a write operation to an object in the database; determining that a second node included in the subset of the N nodes stores a master shard including the object; determining that the subset includes at least (N+1)/2 nodes; and causing the request to perform the write operation to be routed to the second node.

Abstract: Systems, methods, and media for managing an in-memory NoSQL database are provided. In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: identify a group of keys capable of being included in a complex multi-key database command, the group including a first key and a second key, the first key being associated with a first value and the second key being associated with a second value, the first value and the second value being stored on different servers that are part of the database; and cause the first value and the second value to be both stored on a given server.

Abstract: Methods, systems, and media for providing distributed database access during a network split. In some embodiments, the method comprises: receiving, at a node of N nodes, configuration information of the database which indicates which of the N nodes stores replicated shards of the database including master shards and corresponding slave shards, N being an odd number greater than one; identifying, after a network split, a subset of the N nodes which are capable of communicating with each other; receiving, by a proxy, a request to perform a write operation to an object in the database; determining that a second node included in the subset of the N nodes stores a master shard including the object; determining that the subset includes at least (N+1)/2 nodes; and causing the request to perform the write operation to be routed to the second node.

Abstract: Methods, systems, and media for controlling append-only file rewrites are provided. In accordance with some embodiments, the methods comprising: determining a utilization of a shard of a database; determining whether the utilization exceeds a persistent storage utilization threshold; determining a recovery time to recover the shard from an append-only file; determining whether the recovery time exceeds a recovery time threshold; and when the utilization is determined to exceed the utilization threshold or when the recovery time is determined to exceed the recovery time threshold, causing an append-only-file rewrite to be performed.

Abstract: Systems, methods, and media for managing an in-memory NoSQL database are provided. In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: identify a group of keys capable of being included in a complex multi-key database command, the group including a first key and a second key, the first key being associated with a first value and the second key being associated with a second value, the first value and the second value being stored on different servers that are part of the database; and cause the first value and the second value to be both stored on a given server.

Abstract: Method, media, and systems for compressing objects, comprising: receiving a request to write a first object including a first key and a first value, wherein the first object is of a given type; receiving a request to write a second object including a second key and a second value, wherein the second object is of the given type; classifying the first object to a compression dictionary according to at least one rule based on a value of the first object and/or the key of the first object; classifying the second object to the compression dictionary according to at least one rule based on a value of the second object and/or the key of the second object; and compressing the first object and the second object based on the compression dictionary.

Abstract: Systems, methods, and media for managing an in-memory NoSQL database are provided. In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: identify a group of keys capable of being included in a complex multi-key database command, the group including a first key and a second key, the first key being associated with a first value and the second key being associated with a second value, the first value and the second value being stored on different servers that are part of the database; and cause the first value and the second value to be both stored on a given server.

Abstract: A method for maintaining server persistency, including: (a) receiving, by an intermediate entity, a first session request from client to receive a service from a server out of a plurality of servers that are connected to the intermediate entity; (b) selecting a server out of the plurality of servers and directing to the selected server information indicative of the first session request; (c) receiving a response of the selected server to the information indicative of the first session request; (d) analyzing the response of the selected server, to provide an analysis result indicative whether the response includes code to be executed by the client and includes at least one instruction that facilitates sending, by the client, another request, to receive a service from a server out of the plurality of servers; (e) modifying, based on the analysis result, the code by adding information that will cause the client to send a selected server identifier in association to the sending of the other request; and (f) sendi

Abstract: Method, media, and systems for compressing objects, comprising: receiving a request to write a first object including a first key and a first value, wherein the first object is of a given type; receiving a request to write a second object including a second key and a second value, wherein the second object is of the given type; classifying the first object to a compression dictionary according to at least one rule based on a value of the first object and/or the key of the first object; classifying the second object to the compression dictionary according to at least one rule based on a value of the second object and/or the key of the second object; and compressing the first object and the second object based on the compression dictionary.

Abstract: Systems, methods, and media for managing an in-memory NoSQL database are provided. In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: identify a group of keys capable of being included in a complex multi-key database command, the group including a first key and a second key, the first key being associated with a first value and the second key being associated with a second value, the first value and the second value being stored on different servers that are part of the database; and cause the first value and the second value to be both stored on a given server.

Abstract: Methods, systems, and media for providing distributed database access during a network split. In some embodiments, the method comprises: receiving, at a node of N nodes, configuration information of the database which indicates which of the N nodes stores replicated shards of the database including master shards and corresponding slave shards, N being an odd number greater than one; identifying, after a network split, a subset of the N nodes which are capable of communicating with each other; receiving, by a proxy, a request to perform a write operation to an object in the database; determining that a second node included in the subset of the N nodes stores a master shard including the object; determining that the subset includes at least (N+1)/2 nodes; and causing the request to perform the write operation to be routed to the second node.

Abstract: Systems, methods, and media for managing an in-memory NoSQL database are provided. In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: identify a group of keys capable of being included in a complex multi-key database command, the group including a first key and a second key, the first key being associated with a first value and the second key being associated with a second value, the first value and the second value being stored on different servers that are part of the database; and cause the first value and the second value to be both stored on a given server.

Abstract: A method for maintaining server persistency, including: (a) receiving, by an intermediate entity, a first session request from client to receive a service from a server out of a plurality of servers that are connected to the intermediate entity; (b) selecting a server out of the plurality of servers and directing to the selected server information indicative of the first session request; (c) receiving a response of the selected server to the information indicative of the first session request; (d) analyzing the response of the selected server, to provide an analysis result indicative whether the response includes code to be executed by the client and includes at least one instruction that facilitates sending, by the client, another request, to receive a service from a server out of the plurality of servers; (e) modifying, based on the analysis result, the code by adding information that will cause the client to send a selected server identifier in association to the sending of the other request; and (f) sendi

Abstract: In some embodiments, systems for managing an in-memory NoSQL database are provided, the systems comprising a hardware processor that is configured to: receive a dataset; split the dataset into a plurality of parts of the dataset; and storing each of the plurality of parts of the dataset in a separate one of a plurality of 32-bit software architecture in-memory NoSQL databases.