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g-despot merged 2 commits into from
Aug 12, 2026
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docs: fold HNSW snapshots into concepts/storage for v1.39 #492

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25c6641
docs: fold HNSW snapshots into concepts/storage for v1.39
g-despot Aug 4, 2026
89b1085
docs: correct seven inaccurate claims about snapshots and the commit log
g-despot Aug 11, 2026
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10 changes: 5 additions & 5 deletions docs/deploy/configuration/env-vars/index.md
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Expand Up @@ -83,11 +83,11 @@ import APITable from '@site/src/components/APITable';
| `OPERATIONAL_MODE` | Sets the [mode of operation](../status.md#operational-modes) for the instance. Options: `READ_WRITE` (default), `READ_ONLY`, `WRITE_ONLY`, `SCALE_OUT`. Limits available operations based on the mode selected. | `string` | `READ_WRITE` |
| `ORIGIN` | Set the http(s) origin for Weaviate | `string - HTTP origin` | `https://my-weaviate-deployment.com` |
| `PERSISTENCE_DATA_PATH` | Path to the Weaviate data store.<br/>[Note about file systems and performance](/weaviate/concepts/resources.md#file-system). | `string - file path` | `/var/lib/weaviate` <br/> Defaults to `./data`|
| `PERSISTENCE_HNSW_DISABLE_SNAPSHOTS` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. [In `v1.31` through `v1.38`](/weaviate/configuration/hnsw-snapshots.md#pre-v1-39-configuration): if set, HNSW snapshotting will be disabled. Default: `false` (enabled) as of `v1.36`; `true` (disabled) in `v1.31` through `v1.35`<br/>Added in `v1.31` | `boolean` | `false` |
| `PERSISTENCE_HNSW_SNAPSHOT_INTERVAL_SECONDS` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. [In `v1.31` through `v1.38`](/weaviate/configuration/hnsw-snapshots.md#pre-v1-39-configuration): the minimum time in seconds that must pass before the next snapshot is created. Default: `21600` seconds (6 hours)<br/>Added in `v1.31` | `string - number` | `3600` |
| `PERSISTENCE_HNSW_SNAPSHOT_MIN_DELTA_COMMITLOGS_NUMBER` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. [In `v1.31` through `v1.38`](/weaviate/configuration/hnsw-snapshots.md#pre-v1-39-configuration): the minimum number of new commit log files created since the last snapshot. Default: `1`<br/>Added in `v1.31` | `string - number` | `100` |
| `PERSISTENCE_HNSW_SNAPSHOT_MIN_DELTA_COMMITLOGS_SIZE_PERCENTAGE` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. [In `v1.31` through `v1.38`](/weaviate/configuration/hnsw-snapshots.md#pre-v1-39-configuration): the minimum total size of new commit logs (as a percentage of the previous snapshot's size) required to trigger a new snapshot. Default: `5` (meaning 5% of the previous snapshot's size in new commit logs)<br/>Added in `v1.31` | `string - number` | `15` |
| `PERSISTENCE_HNSW_SNAPSHOT_ON_STARTUP` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. [In `v1.31` through `v1.38`](/weaviate/configuration/hnsw-snapshots.md#pre-v1-39-configuration): if set, Weaviate will try to create a new snapshot during startup if there are changes in the commit log since the last snapshot. If there are no changes, then the existing snapshot will be loaded. Default: `true`<br/>Added in `v1.31` | `boolean` | `false` |
| `PERSISTENCE_HNSW_DISABLE_SNAPSHOTS` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. In `v1.31` through `v1.38`: if set, HNSW snapshotting is disabled. Default: `false` (enabled) as of `v1.36`; `true` (disabled) in `v1.31` through `v1.35`. See [snapshot configuration before `v1.39`](/weaviate/concepts/storage.md#pre-v1-39-configuration). <br/>Added in `v1.31` | `boolean` | `false` |
| `PERSISTENCE_HNSW_SNAPSHOT_INTERVAL_SECONDS` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. In `v1.31` through `v1.38`: the minimum time in seconds that must pass before the next snapshot is created. Default: `21600` seconds (6 hours). See [snapshot configuration before `v1.39`](/weaviate/concepts/storage.md#pre-v1-39-configuration). <br/>Added in `v1.31` | `string - number` | `3600` |
| `PERSISTENCE_HNSW_SNAPSHOT_MIN_DELTA_COMMITLOGS_NUMBER` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. In `v1.31` through `v1.38`: the minimum number of new commit log files created since the last snapshot. Default: `1`. See [snapshot configuration before `v1.39`](/weaviate/concepts/storage.md#pre-v1-39-configuration). <br/>Added in `v1.31` | `string - number` | `100` |
| `PERSISTENCE_HNSW_SNAPSHOT_MIN_DELTA_COMMITLOGS_SIZE_PERCENTAGE` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. In `v1.31` through `v1.38`: the minimum total size of new commit logs (as a percentage of the previous snapshot's size) required to trigger a new snapshot. Default: `5` (meaning 5% of the previous snapshot's size in new commit logs). See [snapshot configuration before `v1.39`](/weaviate/concepts/storage.md#pre-v1-39-configuration). <br/>Added in `v1.31` | `string - number` | `15` |
| `PERSISTENCE_HNSW_SNAPSHOT_ON_STARTUP` | **Deprecated in `v1.39`.** Ignored, and logs a startup warning. In `v1.31` through `v1.38`: if set, Weaviate tries to create a new snapshot during startup when enough new commit log data has accumulated since the last snapshot. Otherwise, it loads the existing snapshot. Default: `true`. See [snapshot configuration before `v1.39`](/weaviate/concepts/storage.md#pre-v1-39-configuration). <br/>Added in `v1.31` | `boolean` | `false` |
| `PERSISTENCE_HNSW_MAX_LOG_SIZE` | Maximum size of the HNSW [write-ahead-log](/weaviate/concepts/storage.md#hnsw-vector-index-storage). Increase this to improve log compaction efficiency, or decrease to reduce memory requirements. Default: 500MiB | `string` | `4GiB` (IEC units), `4GB` (SI units), `4000000000` (bytes) |
| `PERSISTENCE_LSM_ACCESS_STRATEGY` | Function used to access disk data in virtual memory. Default: `mmap` | `string` | `mmap` or `pread` |
| `PERSISTENCE_LSM_MAX_SEGMENT_SIZE` | Maximum size of a segment in the [LSM store](/weaviate/concepts/storage.md#object-and-inverted-index-store). Set this to limit disk usage spikes during compaction to ~2x the segment size. Default: no limit | `string` | `4GiB` (IEC units), `4GB` (SI units), `4000000000` (bytes) |
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1 change: 1 addition & 0 deletions docs/deploy/configuration/persistence.md
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Expand Up @@ -107,6 +107,7 @@ You can configure automatic deletion of objects after a specified time period us

## Related pages
- [Configuration: Backups](/deploy/configuration/backups.md)
- [Concepts: Storage - HNSW snapshots](/weaviate/concepts/storage.md#hnsw-snapshots)

## Questions and feedback

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