## Description
Closes: #10705
State Sync for V2 Store (ADR-40)
---
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## Description
Closes: #11092
## TODOs
I'm thinking to do the 2 todos in a separate PR, or else this PR is too big. WDYT?
- [ ] #11246 This involves adding a new index ProposalsByVotingPeriodEnd, so might be better to do in another PR
- [ ] #11245 Also should be done in a separate PR (as it needs the above index)
### Main change 1: Group policy proto defs have `voting_period` and `min_execution_period`
For group policies:
```diff
- // Within this times votes and exec messages can be submitted.
- // timeout is the duration from submission of a proposal to the end of voting period
- google.protobuf.Duration timeout = 2 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
+ // voting_period is the duration from submission of a proposal to the end of voting period
+ // Within this times votes can be submitted with MsgVote.
+ google.protobuf.Duration voting_period = 2 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
+ // min_execution_period is the minimum duration after the proposal submission
+ // where members can start sending MsgExec. This means that the window for
+ // sending a MsgExec transaction is:
+ // `[ submission + min_execution_period ; submission + voting_period + max_execution_period]`
+ // where max_execution_period is a app-specific config, defined in the keeper.
+ // If not set, min_execution_period will default to 0.
+ google.protobuf.Duration min_execution_period = 3 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
```
### Main Change 2: We don't update proposal's FinalTallyResult result on MsgVote/MsgSubmitProposal
Unless the msg has TryExec set to true, in which case the FinalTallyResult is updated ONLY if the tally is final.
### Main Change 3: Add a keeper-level `MaxExecutionPeriod`
MsgExecs will be rejected if they are sent after `voting_period_end + MaxExecutionPeriod`
---
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## Description
Closes: #7340
- Support registering multiple snapshotters in snapshot manager.
- Append the extension snapshotters to existing snapshot stream.
~TODO: testing.~
- existing tests are fixed
---
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- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
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- [ ] reviewed "Files changed" and left comments if necessary
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### Reviewers Checklist
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I have...
- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
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* Add state sync support
* fix incorrect test tempdir
* proto: move and update Protobuf schemas
* proto: lint fixes
* comment tweaks
* don't use type aliasing
* don't call .Error() when logging errors
* use create terminology instead of take for snapshots
* reuse chunk hasher
* simplify key encoding code
* track chunk index in Manager
* add restoreDone message for Manager
* add a ready channel to Snapshotter.Restore()
* add comment on streaming IO API
* use sdkerrors for error handling
* fix incorrect error
* tweak changelog
* syntax fix
* update test code after merge
Sai Kumar
Amaury
yihuang
Aaron Craelius
Erik Grinaker