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MigrationAssistant - Feature: Set desired count for proxies #10082

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@AndreKurait AndreKurait commented Jun 12, 2025

Description

Add documentation for feature in PR: opensearch-project/opensearch-migrations#1499

Issues Resolved

Closes #MIGRATIONS-2515

Version

MA 2.4.1+

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  • By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and subject to the Developers Certificate of Origin.
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Thank you for submitting your PR. The PR states are In progress (or Draft) -> Tech review -> Doc review -> Editorial review -> Merged.

Before you submit your PR for doc review, make sure the content is technically accurate. If you need help finding a tech reviewer, tag a maintainer.

When you're ready for doc review, tag the assignee of this PR. The doc reviewer may push edits to the PR directly or leave comments and editorial suggestions for you to address (let us know in a comment if you have a preference). The doc reviewer will arrange for an editorial review.

@Naarcha-AWS Naarcha-AWS added backport 3.0 4 - Doc review PR: Doc review in progress labels Jun 13, 2025
@AndreKurait AndreKurait marked this pull request as draft June 13, 2025 15:47
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Moving to draft until opensearch-project/opensearch-migrations#1499 is released

| `trafficReplayerServiceEnabled` | `true` | Enables the Traffic Replayer service deployment using a CloudFormation stack. |
| `trafficReplayerExtraArgs` | `"--sigv4-auth-header-service-region es,us-east-1 --speedup-factor 5"` | Extra arguments for the Traffic Replayer command, including options for auth headers and other parameters specified by the [Traffic Replayer](https://github.com/opensearch-project/opensearch-migrations/blob/main/TrafficCapture/trafficReplayer/src/main/java/org/opensearch/migrations/replay/TrafficReplayer.java). |
| `targetClusterProxyServiceEnabled` | `true` | Enables the target cluster proxy service deployment using a CloudFormation stack. |
| `targetClusterProxyDesiredCount` | `3` | Sets the number of target cluster proxy Amazon ECS tasks. In most cases, keep this setting at `0` until you verify connectivity between the source and target clusters in the migration console. After deployment, you can modify the networking setup to allow ingress from the migration security groups into the existing cluster security groups. |
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You are describing the 'what', but why would a customer change this value other than the 0 case, what is the relevance of 3 vs 300.

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We have not performed load tests yet on the proxy throughput, 3 adds 1 per AZ. Customer will need to determine the scale depending on their workload. 3 here is listed as a Example and not any recommendation

@AndreKurait AndreKurait marked this pull request as ready for review June 25, 2025 15:52
@Naarcha-AWS Naarcha-AWS added 5 - Editorial review PR: Editorial review in progress and removed 4 - Doc review PR: Doc review in progress labels Jun 27, 2025
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@natebower: Can you take a quick look at this one?

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