公开(公告)号：US10146833B1

公开(公告)日：2018-12-04

申请号：US15085956

申请日：2016-03-30

Applicant: Amazon Technologies, Inc.

Inventor： Kiran Kumar Muniswamy Reddy ,  Omer Ahmed Zaki ,  Brian O'Neill ,  Anand Sasidharan

IPC: G06F12/00 ,  G06F17/30

Abstract: A fleet of query accelerator nodes is established for a data store. A particular node determines a write throughput limit for back-end writes from the fleet to the data store. A pool of write-back threads is established at the node. When a write request is received at the node, an entry is added to a selected partition of a write-back journal, and a write completion response is provided to the requester without applying the write to the data store. A write-back thread from the pool eventually schedules the back-end write.

公开(公告)号：US11561930B2

公开(公告)日：2023-01-24

申请号：US16684943

申请日：2019-11-15

Applicant: Amazon Technologies, Inc.

Inventor： Kiran Kumar Muniswamy Reddy ,  Anand Sasidharan ,  Omer Ahmed Zaki ,  Brian O'Neill

IPC: G06F16/16 ,  G06F12/0831 ,  G06F12/128 ,  G06F12/12

Abstract: A fleet of query accelerator nodes is established for a data store. Each accelerator node caches data items of the data store locally. In response to determining that an eviction criterion has been met, one accelerator node removes a particular data item from its local cache without notifying any other accelerator node. After the particular data item has been removed, a second accelerator node receives a read query for the particular data item and provides a response using a locally-cached replica of the data item.

公开(公告)号：US10482062B1

公开(公告)日：2019-11-19

申请号：US15085967

申请日：2016-03-30

Applicant: Amazon Technologies, Inc.

Inventor： Kiran Kumar Muniswamy Reddy ,  Anand Sasidharan ,  Omer Ahmed Zaki ,  Brian O'Neill

IPC: G06F16/16 ,  G06F12/0831 ,  G06F12/128 ,  G06F12/12

Abstract: A fleet of query accelerator nodes is established for a data store. Each accelerator node caches data items of the data store locally. In response to determining that an eviction criterion has been met, one accelerator node removes a particular data item from its local cache without notifying any other accelerator node. After the particular data item has been removed, a second accelerator node receives a read query for the particular data item and provides a response using a locally-cached replica of the data item.

公开(公告)号：US20200081867A1

公开(公告)日：2020-03-12

申请号：US16684943

申请日：2019-11-15

Applicant: Amazon Technologies, Inc.

Inventor： Kiran Kumar Muniswamy Reddy ,  Anand Sasidharan ,  Omer Ahmed Zaki ,  Brian O'Neill

IPC: G06F16/16 ,  G06F12/0831 ,  G06F12/128

Abstract: A fleet of query accelerator nodes is established for a data store. Each accelerator node caches data items of the data store locally. In response to determining that an eviction criterion has been met, one accelerator node removes a particular data item from its local cache without notifying any other accelerator node. After the particular data item has been removed, a second accelerator node receives a read query for the particular data item and provides a response using a locally-cached replica of the data item.