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datastore: upgrade go-ds-flatfs #11092

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153c870
datastore: upgrade go-ds-flatfs
gammazero Dec 4, 2025
4c80584
docs(changelog): add go-ds-flatfs atomic batch writes
lidel Dec 8, 2025
f422b12
update go-ds-flatfs
gammazero Dec 11, 2025
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13 changes: 12 additions & 1 deletion docs/changelogs/v0.40.md
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Expand Up @@ -10,15 +10,26 @@ This release was brought to you by the [Shipyard](https://ipshipyard.com/) team.

- [Overview](#overview)
- [🔦 Highlights](#-highlights)
- [Atomic batch writes in flatfs datastore](#atomic-batch-writes-in-flatfs-datastore)
- [Routing V1 HTTP API now exposed by default](#routing-v1-http-api-now-exposed-by-default)
- [Track total size when adding pins](#track-total-size-when-adding-pins]
- [Track total size when adding pins](#track-total-size-when-adding-pins)
- [📝 Changelog](#-changelog)
- [👨‍👩‍👧‍👦 Contributors](#-contributors)

### Overview

### 🔦 Highlights

#### Atomic batch writes in flatfs datastore

The flatfs datastore batch implementation has been rewritten to use atomic operations. Blocks are now written to a temporary directory first and renamed to their final locations only on commit.

If kubo is interrupted during `ipfs add` or `ipfs dag import`, uncommitted blocks are automatically cleaned up on the next start, preventing orphan blocks from polluting the datastore. Previously, interrupted imports could leave partial data behind that was difficult to identify and clean up.

This also reduces memory usage during batch operations, as blocks are written to disk asynchronously instead of being buffered in RAM.

See [go-ds-flatfs#142](https://github.com/ipfs/go-ds-flatfs/pull/142) for implementation details.

#### Routing V1 HTTP API now exposed by default

The [Routing V1 HTTP API](https://specs.ipfs.tech/routing/http-routing-v1/) is now exposed by default at `http://127.0.0.1:8080/routing/v1`. This allows light clients in browsers to use Kubo Gateway as a delegated routing backend instead of running a full DHT client. Support for [IPIP-476: Delegated Routing DHT Closest Peers API](https://github.com/ipfs/specs/pull/476) is included. Can be disabled via [`Gateway.ExposeRoutingAPI`](https://github.com/ipfs/kubo/blob/master/docs/config.md#gatewayexposeroutingapi).
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2 changes: 1 addition & 1 deletion docs/examples/kubo-as-a-library/go.mod
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Expand Up @@ -79,7 +79,7 @@ require (
github.com/ipfs/go-cidutil v0.1.0 // indirect
github.com/ipfs/go-datastore v0.9.0 // indirect
github.com/ipfs/go-ds-badger v0.3.4 // indirect
github.com/ipfs/go-ds-flatfs v0.5.5 // indirect
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626 // indirect
github.com/ipfs/go-ds-leveldb v0.5.2 // indirect
github.com/ipfs/go-ds-measure v0.2.2 // indirect
github.com/ipfs/go-ds-pebble v0.5.7 // indirect
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4 changes: 2 additions & 2 deletions docs/examples/kubo-as-a-library/go.sum
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Expand Up @@ -314,8 +314,8 @@ github.com/ipfs/go-detect-race v0.0.1/go.mod h1:8BNT7shDZPo99Q74BpGMK+4D8Mn4j46U
github.com/ipfs/go-ds-badger v0.0.7/go.mod h1:qt0/fWzZDoPW6jpQeqUjR5kBfhDNB65jd9YlmAvpQBk=
github.com/ipfs/go-ds-badger v0.3.4 h1:MmqFicftE0KrwMC77WjXTrPuoUxhwyFsjKONSeWrlOo=
github.com/ipfs/go-ds-badger v0.3.4/go.mod h1:HfqsKJcNnIr9ZhZ+rkwS1J5PpaWjJjg6Ipmxd7KPfZ8=
github.com/ipfs/go-ds-flatfs v0.5.5 h1:lkx5C99pFBMI7T1sYF7y3v7xIYekNVNMp/95Gm9Y3tY=
github.com/ipfs/go-ds-flatfs v0.5.5/go.mod h1:bM7+m7KFUyv5dp3RBKTr3+OHgZ6h8ydCQkO7tjeO9Z4=
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626 h1:F5lZ6Oj6gTRWNkhjIJsixv1j2xemJk0rqvVYKVtOUqE=
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626/go.mod h1:TtwE6xpVzRMpWDipS1FHEJYxB7YjGNEFZxUXOhTSGGk=
github.com/ipfs/go-ds-leveldb v0.1.0/go.mod h1:hqAW8y4bwX5LWcCtku2rFNX3vjDZCy5LZCg+cSZvYb8=
github.com/ipfs/go-ds-leveldb v0.5.2 h1:6nmxlQ2zbp4LCNdJVsmHfs9GP0eylfBNxpmY1csp0x0=
github.com/ipfs/go-ds-leveldb v0.5.2/go.mod h1:2fAwmcvD3WoRT72PzEekHBkQmBDhc39DJGoREiuGmYo=
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2 changes: 1 addition & 1 deletion go.mod
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Expand Up @@ -29,7 +29,7 @@ require (
github.com/ipfs/go-datastore v0.9.0
github.com/ipfs/go-detect-race v0.0.1
github.com/ipfs/go-ds-badger v0.3.4
github.com/ipfs/go-ds-flatfs v0.5.5
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626
github.com/ipfs/go-ds-leveldb v0.5.2
github.com/ipfs/go-ds-measure v0.2.2
github.com/ipfs/go-ds-pebble v0.5.7
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4 changes: 2 additions & 2 deletions go.sum
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Expand Up @@ -381,8 +381,8 @@ github.com/ipfs/go-detect-race v0.0.1/go.mod h1:8BNT7shDZPo99Q74BpGMK+4D8Mn4j46U
github.com/ipfs/go-ds-badger v0.0.7/go.mod h1:qt0/fWzZDoPW6jpQeqUjR5kBfhDNB65jd9YlmAvpQBk=
github.com/ipfs/go-ds-badger v0.3.4 h1:MmqFicftE0KrwMC77WjXTrPuoUxhwyFsjKONSeWrlOo=
github.com/ipfs/go-ds-badger v0.3.4/go.mod h1:HfqsKJcNnIr9ZhZ+rkwS1J5PpaWjJjg6Ipmxd7KPfZ8=
github.com/ipfs/go-ds-flatfs v0.5.5 h1:lkx5C99pFBMI7T1sYF7y3v7xIYekNVNMp/95Gm9Y3tY=
github.com/ipfs/go-ds-flatfs v0.5.5/go.mod h1:bM7+m7KFUyv5dp3RBKTr3+OHgZ6h8ydCQkO7tjeO9Z4=
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626 h1:F5lZ6Oj6gTRWNkhjIJsixv1j2xemJk0rqvVYKVtOUqE=
github.com/ipfs/go-ds-flatfs v0.5.6-0.20251210234251-f9f889264626/go.mod h1:TtwE6xpVzRMpWDipS1FHEJYxB7YjGNEFZxUXOhTSGGk=
github.com/ipfs/go-ds-leveldb v0.1.0/go.mod h1:hqAW8y4bwX5LWcCtku2rFNX3vjDZCy5LZCg+cSZvYb8=
github.com/ipfs/go-ds-leveldb v0.5.2 h1:6nmxlQ2zbp4LCNdJVsmHfs9GP0eylfBNxpmY1csp0x0=
github.com/ipfs/go-ds-leveldb v0.5.2/go.mod h1:2fAwmcvD3WoRT72PzEekHBkQmBDhc39DJGoREiuGmYo=
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