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grin/doc/state_KR.md
Yeastplume 5cb8025ddd
[1.1.0] Merge master into 1.1.0 (#2720) 
* cleanup legacy "3 dot" check (#2625)

* Allow to peers behind NAT to get up to preferred_max connections (#2543)

Allow to peers behind NAT to get up to preffered_max connections

If peer has only outbound connections it's mot likely behind NAT and we should not stop it from getting more outbound connections

* Reduce usage of unwrap in p2p crate (#2627)

Also change store crate a bit

* Simplify (and fix) output_pos cleanup during chain compaction (#2609)

* expose leaf pos iterator
use it for various things in txhashset when iterating over outputs

* fix

* cleanup

* rebuild output_pos index (and clear it out first) when compacting the chain

* fixup tests

* refactor to match on (output, proof) tuple

* add comments to compact() to explain what is going on.

* get rid of some boxing around the leaf_set iterator

* cleanup

* [docs] Add switch commitment documentation (#2526)

* remove references to no-longer existing switch commitment hash

(as switch commitments were removed in ca8447f3bd
and moved into the blinding factor of the Pedersen Commitment)

* some rewording (points vs curves) and fix of small formatting issues

* Add switch commitment documentation

* [docs] Documents in grin repo had translated in Korean.  (#2604)

*  Start to M/W intro translate in Korean
*  translate in Korean
*  add korean translation  on intro
* table_of_content.md translate in Korean.
*  table_of_content_KR.md finish translate in Korean, start to translate State_KR.md
*  add state_KR.md & commit some translation in State_KR.md
*  WIP stat_KR.md translation
*  add build_KR.md && stratum_KR.md
*  finish translate stratum_KR.md & table_of_content_KR.md
*  rename intro.KR.md to intro_KR.md
*  add intro_KR.md file path each language's  intro.md
*  add Korean translation file path to stratum.md & table_of_contents.md
*  fix difference with grin/master

* Fix TxHashSet file filter for Windows. (#2641)

* Fix TxHashSet file filter for Windows.

* rustfmt

* Updating regexp

* Adding in test case

* Display the current download rate rather than the average when syncing the chain (#2633)

* When syncing the chain, calculate the displayed download speed using the current rate from the most recent iteration, rather than the average download speed from the entire syncing process.

* Replace the explicitly ignored variables in the pattern with an implicit ignore

* remove root = true from editorconfig (#2655)

* Add Medium post to intro (#2654)

Spoke to @yeastplume who agreed it makes sense to add the "Grin Transactions Explained, Step-by-Step" Medium post to intro.md

Open for suggestions on a better location.

* add a new configure item for log_max_files (#2601)

* add a new configure item for log_max_files

* rustfmt

* use a constant instead of multiple 32

* rustfmt

* Fix the build warning of deprecated trim_right_matches (#2662)

* [DOC] state.md, build.md and chain directory documents translate in Korean.  (#2649)

*  add md files for translation.

*  start to translation fast-sync, code_structure. add file build_KR.md, states_KR.md

* add dandelion_KR.md && simulation_KR.md for Korean translation.

*  add md files for translation.

*  start to translation fast-sync, code_structure. add file build_KR.md, states_KR.md

* add dandelion_KR.md && simulation_KR.md for Korean translation.

* remove some useless md files for translation. this is rearrange set up translation order.

*  add dot end of sentence & translate build.md in korean

*  remove fast-sync_KR.md

*  finish build_KR.md translation

*  finish build_KR.md translation

*  finish translation state_KR.md & add phrase in state.md to move other language md file

* translate blocks_and_headers.md && chain_sync.md in Korean

*  add . in chain_sync.md , translation finished in doc/chain dir.

* fix some miss typos

* Api documentation fixes (#2646)

* Fix the API documentation for Chain Validate (v1/chain/validate).  It was documented as a POST, but it is actually a GET request, which can be seen in its handler ChainValidationHandler
* Update the API V1 route list response to include the headers and merkleproof routes.  Also clarify that for the chain/outputs route you must specify either byids or byheight to select outputs.

* refactor(ci): reorganize CI related code (#2658)

Break-down the CI related code into smaller more maintainable pieces.

* Specify grin or nanogrins in API docs where applicable (#2642)

* Set Content-Type in API client (#2680)

* Reduce number of unwraps in chain crate (#2679)

* fix: the restart of state sync doesn't work sometimes (#2687)

* let check_txhashset_needed return true on abnormal case (#2684)

*  Reduce number of unwwaps in api crate  (#2681)

* Reduce number of unwwaps in api crate

* Format use section

* Small QoL improvements for wallet developers (#2651)

* Small changes for wallet devs

* Move create_nonce into Keychain trait

* Replace match by map_err

* Add flag to Slate to skip fee check

* Fix secp dependency

* Remove check_fee flag in Slate

* Add Japanese edition of build.md (#2697)

* catch the panic to avoid peer thread quit early (#2686)

* catch the panic to avoid peer thread quit before taking the chance to ban
* move catch wrapper logic down into the util crate
* log the panic info
* keep txhashset.rs untouched
* remove a warning

* [DOC] dandelion.md, simulation.md ,fast-sync.md and pruning.md documents translate in Korean. (#2678)

* Show response code in API client error message (#2683)

It's hard to investigate what happens when an API client error is
printed out

* Add some better logging for get_outputs_by_id failure states (#2705)

* Switch commitment doc fixes (#2645)

Fix some typos and remove the use of parentheses in a
couple of places to make the reading flow a bit better.

* docs: update/add new README.md badges (#2708)

Replace existing badges with SVG counterparts and add a bunch of new ones.

* Update intro.md (#2702)

Add mention of censoring attack prevented by range proofs

* use sandbox folder for txhashset validation on state sync (#2685)

* use sandbox folder for txhashset validation on state sync

* rustfmt

* use temp directory as the sandbox instead actual db_root txhashset dir

* rustfmt

* move txhashset overwrite to the end of full validation

* fix travis-ci test

* rustfmt

* fix: hashset have 2 folders including txhashset and header

* rustfmt

* 
(1)switch to rebuild_header_mmr instead of copy the sandbox header mmr 
(2)lock txhashset when overwriting and opening and rebuild

* minor improve on sandbox_dir

* add Japanese edition of state.md (#2703)

* Attempt to fix broken TUI locale (#2713)

Can confirm that on the same machine 1.0.2 TUI looks great and is broken on
the current master. Bump of `cursive` version fixed it for me.
Fixes #2676

* clean the header folder in sandbox (#2716)

* forgot to clean the header folder in sandbox in #2685

* Reduce number of unwraps in servers crate (#2707)

It doesn't include stratum server which is sufficiently changed in 1.1
branch and adapters, which is big enough for a separate PR.

* rustfmt

* change version to beta
2019-04-01 11:47:48 +01:00

3.1 KiB
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상태와 스토리지

Grin의 상태

구조

Grin chain의 모든 상태는 다음 데이터와 같이 이루어져 있습니다.

  1. unspent output(UTXO) 세트
  2. 각 출력값에 대한 range proof
  3. 모든 트랜잭션 커널(kernel)들
  4. 1,2,3번의 각각의 MMR들 (예외적으로 출력값 MMR은 사용되지 않은 것 뿐만 아니라 모든 출력값의 해쉬를 포함합니다.)

더해서, 유효한 Proof of work 와 함께 chain 안의 모든 헤더들은 상기 상태에 대해 고정되어야 합니다. (상태는 가장 많이 일한 체인과 일치합니다.) 한번 각각의 range proof 가 인증되고 모든 kernel의 실행 합계가 계산되었다면 range proof와 kernel 들은 node 의 작동에 꼭 필요하진 않습니다.

인증하기

완전한 Grin의 상태를 사용해서 우리는 다음과 같은 것들을 인증 할 수 있습니다.

  1. Kernel 의 signature 가 Kernel의 실행에 대해 유효하다면 (공개키), 이것은 Kernel이 유효하다는것을 증명합니다.
  2. 모든 커밋 실행의 합이 모든 UTXO 실행의 합에서 총 공급량을 뺸 값이 같다면 이것은 Kernal과 출력값의 실행들이 유효하고 코인이 새로이 만들어지지 않았다는 것을 증명합니다.
  3. 모든 UTXO, range prook 와 Kernel 해쉬들은 각각의 MMR이 있고 그 MMR 들은 유효한 root 를 해쉬합니다.
  4. 특정 시점에 가장 많이 일했다고 알려진 Block header 에는 3개의 MMR에 대한 root 가 포함됩니다. 이것은 전체 상태가 가장 많이 일한 chain (가장 긴 체인)에서 MMR과 증명들이 만들어졌다는 것을 입증합니다.

MMR 과 Pruning

각각의 MMR에서 리프 노드에 대한 해시를 생성하는 데 사용되는 데이터 위치는 다음과 같습니다.

  • MMR의 출력값은 제네시스 블록 이후부터 피쳐 필드와 모든 출력값의 실행들을 해시합니다.
  • range proof MMR은 모든 Range proof 데이터를 해시합니다.
  • Kernel MMR 은 피쳐, 수수료, lock height, excess commitment와 excess Signature같은 모든 값을 해시합니다.

모든 출력, 범위 증명 및 커널은 각 블록에서 발생하는 순서대로 각 MMR에 추가됩니다.블록 데이터는 정렬이(to be sorted) 되어야 합니다.

산출물이 소비됨에 따라 commitment 및 range proof 데이터를 지울 수 있습니다. 또한 해당 출력 및 range proof MMR을 pruning 할 수 있습니다.

상태 스토리지

Grin 에 있는 출력값에 대한 데이터 스토리지, Range proof 와 kernel은 간단합니다. 그 형태는 데이터 엑세스를 위한 메모리 매핑 된 append only 파일입니다. 출력값이 소비되는것에 따라서 제거 로그는 지울수 있는 위치를 유지힙니다. 이런 포지션은 MMR과 노드 포지션이 같은 순서로 입력되었으므로 잘 일치합니다. 제거 로그가 커지면 (Append only 파일도 )때때로 해당 파일을 지워진 부분 없이 다시 작성해서 압축하고 제거 로그를 비울 수 있습니다.

MMR은 약간 더 복잡합니다.