kibana/packages/kbn-logging-mocks
Eyo O. Eyo af88e0932f
Limit download concurrency for files within Kibana (#168601)
## Summary

Closes https://github.com/elastic/kibana/issues/151986

This PR adds a limit to the number of concurrent downloads a user can
initiate from kibana.

P.S.

This PR renames the previous static method `configureConcurrentUpload`
exposed by the `ElasticsearchBlobStorageClient` to
`configureConcurrentTransfers` so that one might use a single static
method to configure the limits for concurrent transfers possible for
upload and download transfers in one go.

The new static method `configureConcurrentTransfers` accepts either a
number or a tuple, when a number is passed it's value is set as the
concurrent limit for both uploads and transfers, when a tuple is passed
the value of the first index sets the concurrent limit for uploads,
whilst the value of the second index sets the concurrent limit for
downloads.


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### Risk Matrix

Delete this section if it is not applicable to this PR.

Before closing this PR, invite QA, stakeholders, and other developers to
identify risks that should be tested prior to the change/feature
release.

When forming the risk matrix, consider some of the following examples
and how they may potentially impact the change:

| Risk | Probability | Severity | Mitigation/Notes |

|---------------------------|-------------|----------|-------------------------|
| Multiple Spaces&mdash;unexpected behavior in non-default Kibana Space.
| Low | High | Integration tests will verify that all features are still
supported in non-default Kibana Space and when user switches between
spaces. |
| Multiple nodes&mdash;Elasticsearch polling might have race conditions
when multiple Kibana nodes are polling for the same tasks. | High | Low
| Tasks are idempotent, so executing them multiple times will not result
in logical error, but will degrade performance. To test for this case we
add plenty of unit tests around this logic and document manual testing
procedure. |
| Code should gracefully handle cases when feature X or plugin Y are
disabled. | Medium | High | Unit tests will verify that any feature flag
or plugin combination still results in our service operational. |
| [See more potential risk
examples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx) |


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2023-10-30 12:28:11 +01:00
..
src Limit download concurrency for files within Kibana (#168601) 2023-10-30 12:28:11 +01:00
index.ts chore(NA): remove src folder requirement from packages (part 2) (#138476) 2022-08-30 15:57:35 +01:00
kibana.jsonc Transpile packages on demand, validate all TS projects (#146212) 2022-12-22 19:00:29 -06:00
package.json Transpile packages on demand, validate all TS projects (#146212) 2022-12-22 19:00:29 -06:00
tsconfig.json Transpile packages on demand, validate all TS projects (#146212) 2022-12-22 19:00:29 -06:00