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公开(公告)号：US10671572B2
公开(公告)日：2020-06-02
申请号：US15182030
申请日：2016-06-14
Applicant: SAP SE
Inventor： Nathan Auch , Scott MacLean , Peter Bumbulis , Jeffrey Pound , Anil Kumar Goel
Abstract: A system includes reception of a first write request from a client including a first key and a first one or more stream, payload pairs associated with the first key, copying of the first key and the first one or more stream, payload pairs to a first buffer of a volatile memory, storage of data of the first buffer in one or more blocks of a raw block non-volatile memory device, providing of the first buffer to a stream store server, reception of the first buffer at the stream store server, adding of the first key and the first one or more stream, payload pairs to a second buffer of the volatile memory, in key-order, storage of the data of the second buffer in a filesystem storage device, according to stream, and transmission of an indication of the durability of the key to the tail store server.
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公开(公告)号：US20170357667A1
公开(公告)日：2017-12-14
申请号：US15182030
申请日：2016-06-14
Applicant: SAP SE
Inventor： Nathan Auch , Scott MacLean , Peter Bumbulis , Jeffrey Pound , Anil Kumar Goel
IPC: G06F17/30
Abstract: A system includes reception of a first write request from a client including a first key and a first one or more stream, payload pairs associated with the first key, copying of the first key and the first one or more stream, payload pairs to a first buffer of a volatile memory, storage of data of the first buffer in one or more blocks of a raw block non-volatile memory device, providing of the first buffer to a stream store server, reception of the first buffer at the stream store server, adding of the first key and the first one or more stream, payload pairs to a second buffer of the volatile memory, in key-order, storage of the data of the second buffer in a filesystem storage device, according to stream, and transmission of an indication of the durability of the key to the tail store server.
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公开(公告)号：US10346387B2
公开(公告)日：2019-07-09
申请号：US15180720
申请日：2016-06-13
Applicant: SAP SE
Inventor： Peter Bumbulis , Jeffrey Pound , Nathan Auch , Anil Kumar Goel , Matthias Ringwald , Thomas Bodner , Scott MacLean
Abstract: A method includes a primary storage unit receiving a first write request including a first key and a first value; persisting the first value in a first non-volatile memory in association with the first key; broadcasting the first write request and a first set of globally-durable keys to secondary storage units; receiving, from the secondary storage units, an acknowledgement of the first write request and a first set of locally-durable keys, each of the first sets of locally-durable keys including the first key; the primary storage unit receiving a second write request including a second key and a second value; persisting the second value in the first non-volatile memory in association with the second key; and broadcasting the second write request and a second set of globally-durable keys to the secondary storage units, the second set of locally-durable keys including the first key. A system is also disclosed.
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Patent Agency Ranking
公开(公告)号：US20180165343A1
公开(公告)日：2018-06-14
申请号：US15373844
申请日：2016-12-09
Applicant: SAP SE
Inventor： Hua Fan , Jeffrey Pound , Peter Bumbulis , Anil Kumar Goel , Scott MacLean , Nathan Auch , Eric Garber
CPC classification number: G06F16/275 , G06F3/067 , G06F16/2358 , G06F16/2365 , G06F16/273 , H04L67/1002 , H04W4/06
Abstract: Disclosed herein are system, method, and computer program product embodiments for quorum-based replication of data records. In one embodiment, a read request for reading a record is received from a user node on a replica node of a cluster of replica nodes. The record is then determined not committed on the replica node. In response to the determination, an update message indicative of whether the number of replica nodes on which the record is durable exceeds a threshold is received on the replica node. In response to the number of replica nodes exceeds the threshold, a value of the record on the replica node is transmitted to the user node.
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公开(公告)号：US10366106B2
公开(公告)日：2019-07-30
申请号：US15373844
申请日：2016-12-09
Applicant: SAP SE
Inventor： Hua Fan , Jeffrey Pound , Peter Bumbulis , Anil Kumar Goel , Scott MacLean , Nathan Auch , Eric Garber
Abstract: Disclosed herein are system, method, and computer program product embodiments for quorum-based replication of data records. In one embodiment, a read request for reading a record is received from a user node on a replica node of a cluster of replica nodes. The record is then determined not committed on the replica node. In response to the determination, an update message indicative of whether the number of replica nodes on which the record is durable exceeds a threshold is received on the replica node. In response to the number of replica nodes exceeds the threshold, a value of the record on the replica node is transmitted to the user node.
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公开(公告)号：US10360145B2
公开(公告)日：2019-07-23
申请号：US15180816
申请日：2016-06-13
Applicant: SAP SE
Inventor： Jeffrey Pound , Nathan Auch , Peter Bumbulis , Anil Kumar Goel , Scott MacLean , Eric Garber
Abstract: A system includes writing of log data in chunks over a first range of heap log sequence positions of a heap log stored in the non-volatile memory system, and writing of a heap anchor marker in a first anchor stream of a transaction log stored in the non-volatile memory system, at a first transaction log sequence position of the transaction log, wherein the first anchor stream is associated with a first stream of the transaction log, and the heap anchor marker identifies the first range of heap log sequence positions of the heap log.
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公开(公告)号：US20170357683A1
公开(公告)日：2017-12-14
申请号：US15180720
申请日：2016-06-13
Applicant: SAP SE
Inventor： Peter Bumbulis , Jeffrey Pound , Nathan Auch , Anil Kumar Goel , Matthias Ringwald , Thomas Bodner , Scott MacLean
IPC: G06F17/30
CPC classification number: G06F16/2358 , G06F11/1471 , G06F11/1474 , G06F11/2058 , G06F11/2066 , G06F11/2082 , G06F11/2097 , G06F16/2365 , G06F16/2379 , G06F16/27
Abstract: A system and method include reception, at a primary storage unit, of a first write request from a client including a first key and a first value, persisting of the first value in a first non-volatile memory of the primary storage unit in association with the first key, broadcast of the first write request and a first set of globally-durable keys to the one or more secondary storage units, reception, from each of the one or more secondary storage units, of an acknowledgement of the first write request and a first set of locally-durable keys, each of the first sets of locally-durable keys including the first key, reception, at the primary storage unit, of a second write request from the client including a second key and a second value, persisting of the second value in the first non-volatile memory in association with the second key, and broadcast of the second write request and a second set of globally-durable keys to the one or more secondary storage units, the second set of locally-durable keys including the first key.
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公开(公告)号：US20170357574A1
公开(公告)日：2017-12-14
申请号：US15180816
申请日：2016-06-13
Applicant: SAP SE
Inventor： Jeffrey Pound , Nathan Auch , Peter Bumbulis , Anil Kumar Goel , Scott MacLean , Eric Garber
IPC: G06F12/02
CPC classification number: G06F12/0253 , G06F11/14 , G06F12/0246 , G06F16/2358 , G06F16/2365
Abstract: A system includes writing of log data in chunks over a first range of heap log sequence positions of a heap log stored in the non-volatile memory system, and writing of a heap anchor marker in a first anchor stream of a transaction log stored in the non-volatile memory system, at a first transaction log sequence position of the transaction log, wherein the first anchor stream is associated with a first stream of the transaction log, and the heap anchor marker identifies the first range of heap log sequence positions of the heap log.
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