David Reiss

Allow embedding dynamic config in static config

1

## What changed? PoC for #6561: - If static config has a key `dynamicConfig`, use the contents of that as dynamic config. - `dynamicConfigClient.pollInterval` is allowed to be zero, meaning...

## What changed? Add `history.alignMembershipChange` to allow history to use aligned membership changes also. ## Why? Better behavior during restarts/deployments. ## How did you test it? not yet

## What changed? Use fx to construct shard context, history engine, and history api handlers. ## Why? Reduce boilerplate, make dependencies more explicit, ## How did you test it? -...

## What changed? - Split implementation of "constrained default" settings from "plain default" settings. This is more code and the diff looks complex, but the individual paths are both simpler...

## What changed? Add option to use LookupN instead of Lookup for matching partition routing. ## Why? This can help spread partitions across available nodes better: instead of placing each...

## What changed? - Split classic/new matcher at top level - Use more pollers in most tests - Use combined worker instead of separate - Calculate observed rate with linear...