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Hierarchical chunking of objects in a distributed storage system
US9158472B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9158472-B2 |
| Application number | US-201314142706-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 27, 2013 |
| Priority date | Jun 25, 2013 |
| Publication date | Oct 13, 2015 |
| Grant date | Oct 13, 2015 |
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Abstract
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Placement of object replicas in a distributed storage system includes, at a first instance, opening a journal for storage of object chunks. Each journal is associated with a single placement policy. An object is received, which comprises a chunk. The object has a placement policy, and the chunk comprises a plurality of storage blocks. The blocks are stored in a journal that matches the placement policy. Global metadata for the object is stored, which includes a list of chunks for the object. Local metadata for the chunk is stored, which includes a block list identifying each block of the plurality of blocks. The local metadata is associated with the journal. The journal is later closed. The journal is subsequently replicated to a second instance according to the placement policy. The global metadata is updated to reflect the replication, whereas the local metadata is unchanged by the replication.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for managing placement of object replicas in a distributed storage system, comprising: at a first instance of the distributed storage system, having one or more processors and memory, wherein the memory stores one or more programs for execution by the one or more processors: receiving a first object that is associated with a first placement policy, wherein the first placement policy specifies criteria for where replicas of the first object are sto…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06F3/065Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9158472B2 cover?
- Placement of object replicas in a distributed storage system includes, at a first instance, opening a journal for storage of object chunks. Each journal is associated with a single placement policy. An object is received, which comprises a chunk. The object has a placement policy, and the chunk comprises a plurality of storage blocks. The blocks are stored in a journal that matches the placemen…
- Who is the assignee on this patent?
- Google Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/065. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).