Commit Graph

2 Commits

Author SHA1 Message Date
hashicorp-copywrite[bot] 5fb9df1640
[COMPLIANCE] License changes (#18443)
* Adding explicit MPL license for sub-package

This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.

* Adding explicit MPL license for sub-package

This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.

* Updating the license from MPL to Business Source License

Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at <Blog URL>, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl.

* add missing license headers

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

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Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
2023-08-11 09:12:13 -04:00
Derek Menteer 04edace1de
Fix issue with streaming service health watches. (#17775)
Fix issue with streaming service health watches.

This commit fixes an issue where the health streams were unaware of service
export changes. Whenever an exported-services config entry is modified, it is
effectively an ACL change.

The bug would be triggered by the following situation:

- no services are exported
- an upstream watch to service X is spawned
- the streaming backend filters out data for service X (due to lack of exports)
- service X is finally exported

In the situation above, the streaming backend does not trigger a refresh of its
data.  This means that any events that were supposed to have been received prior
to the export are NOT backfilled, and the watches never see service X spawning.

We currently have decided to not trigger a stream refresh in this situation due
to the potential for a thundering herd effect (touching exports would cause a
re-fetch of all watches for that partition, potentially).  Therefore, a local
blocking-query approach was added by this commit for agentless.

It's also worth noting that the streaming subscription is currently bypassed
most of the time with agentful, because proxycfg has a `req.Source.Node != ""`
which prevents the `streamingEnabled` check from passing.  This means that while
agents should technically have this same issue, they don't experience it with
mesh health watches.

Note that this is a temporary fix that solves the issue for proxycfg, but not
service-discovery use cases.
2023-06-15 12:46:58 -05:00