# Kudu shared storage · storage · 2018

Revision 1 (11 October 2026) · Modeled snapshot · through 8 October 2026.

All figures are research-informed estimates of analytical activity. Significant errors may remain; decimal places do not imply measurement precision.

0.18% of the full storage layer.

[Kudu shared storage](https://history.columnar.tech/technologies/storage/kudu.md): historical names and annual shares.

Kudu is an independent, open-source storage system that can be used by Impala, Spark, and MapReduce. It runs its own storage servers. This model estimates only the Impala-to-Kudu workload; the connection does not imply that Kudu belongs to Impala.

## Contributions by compute engine

Each figure is a share of the full storage layer.

| Engine | Share of full storage layer | Engine connections |
| --- | --- | --- |
| [Apache Impala](https://history.columnar.tech/technologies/compute/impala.md) | 0.2% | [Inspect engine](https://history.columnar.tech/connections/2018/compute/impala.md) |

[All percentages for 2018](https://history.columnar.tech/years/2018.md)

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[Markdown overview](https://history.columnar.tech/index.md) · [Interactive visualization](https://history.columnar.tech/?2018) · [Methodology](https://history.columnar.tech/methodology.md) · [Terms of use](https://history.columnar.tech/terms.md)

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