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* [block-ref-repair] Block refcount recalculation and repairAlex Auvolat2024-03-191-0/+3
| | | | | | | | | | - We always recalculate the reference count of a block before deleting it locally, to make sure that it is indeed zero. - If we had to fetch a remote block but we were not able to get it, check that refcount is indeed > 0. - Repair procedure that checks everything
* Merge branch 'main' into next-0.10Alex Auvolat2024-02-151-2/+2
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| * [import-netapp] import Netapp code into Garage codebaseAlex Auvolat2024-02-151-2/+2
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* | rpc: fix write set quorumsAlex Auvolat2023-11-151-3/+4
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* move debug_serialize to garage_util::encodeAlex Auvolat2023-01-031-0/+1
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* Abstract database behind generic interface and implement alternative drivers ↵Alex2022-06-081-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (#322) - [x] Design interface - [x] Implement Sled backend - [x] Re-implement the SledCountedTree hack ~~on Sled backend~~ on all backends (i.e. over the abstraction) - [x] Convert Garage code to use generic interface - [x] Proof-read converted Garage code - [ ] Test everything well - [x] Implement sqlite backend - [x] Implement LMDB backend - [ ] (Implement Persy backend?) - [ ] (Implement other backends? (like RocksDB, ...)) - [x] Implement backend choice in config file and garage server module - [x] Add CLI for converting between DB formats - Exploit the new interface to put more things in transactions - [x] `.updated()` trigger on Garage tables Fix #284 **Bugs** - [x] When exporting sqlite, trees iterate empty?? - [x] LMDB doesn't work **Known issues for various back-ends** - Sled: - Eats all my RAM and also all my disk space - `.len()` has to traverse the whole table - Is actually quite slow on some operations - And is actually pretty bad code... - Sqlite: - Requires a lock to be taken on all operations. The lock is also taken when iterating on a table with `.iter()`, and the lock isn't released until the iterator is dropped. This means that we must be VERY carefull to not do anything else inside a `.iter()` loop or else we will have a deadlock! Most such cases have been eliminated from the Garage codebase, but there might still be some that remain. If your Garage-over-Sqlite seems to hang/freeze, this is the reason. - (adapter uses a bunch of unsafe code) - Heed (LMDB): - Not suited for 32-bit machines as it has to map the whole DB in memory. - (adpater uses a tiny bit of unsafe code) **My recommendation:** avoid 32-bit machines and use LMDB as much as possible. **Converting databases** is actually quite easy. For example from Sled to LMDB: ```bash cd src/db cargo run --features cli --bin convert -- -i path/to/garage/meta/db -a sled -o path/to/garage/meta/db.lmdb -b lmdb ``` Then, just add this to your `config.toml`: ```toml db_engine = "lmdb" ``` Co-authored-by: Alex Auvolat <alex@adnab.me> Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/322 Co-authored-by: Alex <alex@adnab.me> Co-committed-by: Alex <alex@adnab.me>
* First implementation of K2V (#293)Alex2022-05-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **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: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/293 Co-authored-by: Alex <alex@adnab.me> Co-committed-by: Alex <alex@adnab.me>
* Add feature flag for Kubernetes discoveryAlex Auvolat2022-03-241-3/+0
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* add support for kubernetes service discoveryMax Audron2022-03-121-0/+3
| | | | | | | | | | | | | | | | | | | | | This commit adds support to discover garage instances running in kubernetes. Once enabled by setting `kubernetes_namespace` and `kubernetes_service_name` garage will create a Custom Resources `garagenodes.deuxfleurs.fr` with nodes public key as the resource name. and IP and Port information as spec in the namespace configured by `kubernetes_namespace`. For discovering nodes the resources are filtered with the optionally set `kubernetes_service_name` which sets a label `garage.deuxfleurs.fr/service` on the resources. This allows to separate multiple garage deployments in a single namespace. the `kubernetes_skip_crd` variable allows to disable the creation of the CRD by garage itself. The user must deploy this manually.
* Some movement of helper code and refactoring of error handlingAlex Auvolat2022-01-041-2/+8
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* New buckets for 0.6.0: fix model and migrationAlex Auvolat2022-01-041-5/+5
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* New model for bucketsAlex Auvolat2022-01-041-0/+29
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* Add semaphore to limit RAM used by buffered outgoing requestsrequest-buffer-semaphoreAlex Auvolat2021-11-031-0/+3
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* Improve CLI, adapt tests, update documentationAlex Auvolat2021-10-251-2/+37
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* Improvements to CLI and various fixes for netapp versionAlex Auvolat2021-10-221-30/+52
| | | | Discovery via consul, persist peer list to file
* First port of Garage to NetappAlex Auvolat2021-10-221-7/+4
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* rename types to CamelCaseTrinity Pointard2021-05-031-14/+14
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* fix clippy warnings on util and rpcTrinity Pointard2021-05-031-2/+2
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* make most requested changesTrinity Pointard2021-04-271-1/+0
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* document util crateTrinity Pointard2021-04-271-0/+4
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* WIP migrate to tokio 1Alex Auvolat2021-03-151-1/+7
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* Update sled & try to debug deadlock (but its in sled...)Alex Auvolat2021-02-231-4/+4
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* Refactor error management in API parterror-refactoringAlex Auvolat2020-11-081-35/+2
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* Implement HTTP ranges in getAlex Auvolat2020-05-041-6/+6
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* Implement DeleteObjectsAlex Auvolat2020-05-011-0/+12
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* Starting to be S3 compatibleAlex Auvolat2020-04-241-0/+4
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* Split code for modular compilationAlex Auvolat2020-04-241-0/+112