Invention Publication
- Patent Title: RECOVERY MECHANISM WITH SELECTIVE ORDERING AND CONCURRENT OPERATIONS
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Application No.: US17886843Application Date: 2022-08-12
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Publication No.: US20240054056A1Publication Date: 2024-02-15
- Inventor: Parag SARFARE , Asif PATHAN , Amit BORASE , Nikhil MATTANKOT , Sudheer Kumar VAVILAPALLI , Stephen WU
- Applicant: NetApp Inc.
- Applicant Address: US CA San Jose
- Assignee: NetApp Inc.
- Current Assignee: NetApp Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: G06F11/14
- IPC: G06F11/14

Abstract:
Techniques are provided for a recovery process with selective ordering and concurrent operations in order to recover from a failure. Representations of active log structures are rebuilt within memory according to ordering values assigned to I/O operations logged within the active log structures. Representation of certain active log structures may be concurrently rebuilt based upon the active log structures comprising I/O operations that are non-overlapping within a distributed file system, have no dependencies, relate to different services, and/or target independent files. Representation of stale log structures are concurrently rebuilt within memory. While rebuilding the log structures and executing the I/O operations, a key value map is concurrently rebuilt within the memory for locating data of the I/O operations. Concurrent operations during the recovery process reduces the time to complete the recovery process, and thus reduces client downtime during the recovery process.
Public/Granted literature
- US12086035B2 Recovery mechanism with selective ordering and concurrent operations Public/Granted day:2024-09-10
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