Commit graph

22 commits

Author SHA1 Message Date
5768bf3622 First implementation of K2V (#293)
**Specification:**

View spec at [this URL](https://git.deuxfleurs.fr/Deuxfleurs/garage/src/branch/k2v/doc/drafts/k2v-spec.md)

- [x] Specify the structure of K2V triples
- [x] Specify the DVVS format used for causality detection
- [x] Specify the K2V index (just a counter of number of values per partition key)
- [x] Specify single-item endpoints: ReadItem, InsertItem, DeleteItem
- [x] Specify index endpoint: ReadIndex
- [x] Specify multi-item endpoints: InsertBatch, ReadBatch, DeleteBatch
- [x] Move to JSON objects instead of tuples
- [x] Specify endpoints for polling for updates on single values (PollItem)

**Implementation:**

- [x] Table for K2V items, causal contexts
- [x] Indexing mechanism and table for K2V index
- [x] Make API handlers a bit more generic
- [x] K2V API endpoint
- [x] K2V API router
- [x] ReadItem
- [x] InsertItem
- [x] DeleteItem
- [x] PollItem
- [x] ReadIndex
- [x] InsertBatch
- [x] ReadBatch
- [x] DeleteBatch

**Testing:**

- [x] Just a simple Python script that does some requests to check visually that things are going right (does not contain parsing of results or assertions on returned values)
- [x] Actual tests:
  - [x] Adapt testing framework
  - [x] Simple test with InsertItem + ReadItem
  - [x] Test with several Insert/Read/DeleteItem + ReadIndex
  - [x] Test all combinations of return formats for ReadItem
  - [x] Test with ReadBatch, InsertBatch, DeleteBatch
  - [x] Test with PollItem
  - [x] Test error codes
- [ ] Fix most broken stuff
  - [x] test PollItem broken randomly
  - [x] when invalid causality tokens are given, errors should be 4xx not 5xx

**Improvements:**

- [x] Descending range queries
  - [x] Specify
  - [x] Implement
  - [x] Add test
- [x] Batch updates to index counter
- [x] Put K2V behind `k2v` feature flag

Co-authored-by: Alex Auvolat <alex@adnab.me>
Reviewed-on: Deuxfleurs/garage#293
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>
2022-05-10 13:16:57 +02:00
2377a92f6b
Add wrapper over sled tree to count items (used for big queues) 2022-03-14 10:54:25 +01:00
8c2fb0c066
Add tracing integration with opentelemetry 2022-03-14 10:52:13 +01:00
2cab84b1fe
Add many metrics in table/ and rpc/ 2022-03-14 10:51:50 +01:00
1e2cf26373
Implement basic metrics in table 2022-03-14 10:51:17 +01:00
af261e1789 Fix a bug when a migration is followed by a rebalance
Nodes would stabilize on different encoding formats for the values,
some having the pre-migration format and some having the post-migration
format. This would be reflected in the Merkle trees never converging
and thus having an infinite resync loop.
2022-02-10 17:38:27 +01:00
8f6026de5e
Make table name a const in trait 2021-12-15 15:39:10 +01:00
ad7ab31411
Implement GC delay for table data 2021-11-08 15:47:47 +01:00
cc255d46cd
Refactor and comment table GC logic 2021-11-08 15:47:44 +01:00
4067797d01
First port of Garage to Netapp 2021-10-22 15:55:18 +02:00
e4b9e4e24d
rename types to CamelCase 2021-05-03 22:15:09 +02:00
9ced9f78dc
Improve bootstraping: do it regularly; persist peer list 2021-04-27 16:37:08 +02:00
7b10245dfb Leader-based GC 2021-03-16 18:42:33 +01:00
515029d026 Refactor code 2021-03-16 11:43:58 +01:00
0cd5b2ae19 WIP migrate to tokio 1 2021-03-15 22:36:41 +01:00
667e4e72a8 Small fixes 2021-03-15 19:51:16 +01:00
831eb35763 cargo fmt 2021-03-12 21:52:19 +01:00
c475471e7a Implement table gc, currently for block_ref and version only 2021-03-12 19:57:37 +01:00
a1442f072a Implement garage stats to get info on node contents 2021-03-12 15:40:54 +01:00
7fdaf7aef0 Fix merkle updater not being notified; improved logging 2021-03-12 14:37:46 +01:00
046b649bcc (not well tested) use merkle tree for sync 2021-03-11 18:28:27 +01:00
94f3d28774 WIP big refactoring 2021-03-11 16:54:15 +01:00