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path: root/src/table/table.rs
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* Spawn all background workers in a separate stepAlex Auvolat2022-12-141-8/+14
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* Proper queueing for delayed inserts, now backed to diskAlex Auvolat2022-12-141-0/+11
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* RPC performance changesAlex Auvolat2022-09-191-11/+3
| | | | | | - configurable ping timeout - single, much higher, configurable RPC timeout - no more concurrency semaphore
* Remove/change println! in server code (fix #358)Alex Auvolat2022-09-131-1/+0
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* Less strict timeoutsAlex Auvolat2022-09-011-1/+1
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* Abstract database behind generic interface and implement alternative drivers ↵Alex2022-06-081-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (#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)Alex2022-05-101-31/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **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 spans to table calls, change span names in RPCAlex Auvolat2022-03-141-2/+37
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* Add metrics to API endpointAlex Auvolat2022-03-141-2/+4
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* Refactor how durations are measuredAlex Auvolat2022-03-141-28/+34
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* Add many metrics in table/ and rpc/Alex Auvolat2022-03-141-1/+33
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* Some movement of helper code and refactoring of error handlingAlex Auvolat2022-01-041-1/+1
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* Make table name a const in traitAlex Auvolat2021-12-151-9/+3
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* Improvements to CLI and various fixes for netapp versionAlex Auvolat2021-10-221-20/+15
| | | | Discovery via consul, persist peer list to file
* First port of Garage to NetappAlex Auvolat2021-10-221-46/+64
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* rename types to CamelCaseTrinity Pointard2021-05-031-23/+23
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* fix clippy warnings on tableTrinity Pointard2021-05-031-8/+5
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* Leader-based GCAlex Auvolat2021-03-161-1/+1
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* some reorderingAlex Auvolat2021-03-161-2/+2
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* Refactor codeAlex Auvolat2021-03-161-27/+26
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* Simplify replication logicAlex Auvolat2021-03-161-5/+5
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* cargo fmtAlex Auvolat2021-03-121-1/+1
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* Implement table gc, currently for block_ref and version onlyAlex Auvolat2021-03-121-6/+2
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* Move table rpc client out of tableauxAlex Auvolat2021-03-121-18/+13
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* Make syncer have its own rpc client/serverAlex Auvolat2021-03-121-2/+2
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* (not well tested) use merkle tree for syncAlex Auvolat2021-03-111-28/+22
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* WIP big refactoringAlex Auvolat2021-03-111-214/+51
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* Checkpoint: add merkle tree in data tableAlex Auvolat2021-03-111-29/+62
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* Refactor model stuff, including cleaner CRDTsAlex Auvolat2021-03-101-0/+1
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* Remove epidemic propagation for fully replicated stuff: write directly to ↵Alex Auvolat2021-03-051-15/+2
| | | | all nodes
* I was tired yesterdayAlex Auvolat2021-02-241-1/+1
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* fix misuse of sled transactionsAlex Auvolat2021-02-231-1/+1
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* Update sled & try to debug deadlock (but its in sled...)Alex Auvolat2021-02-231-7/+3
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* Make updated() be a sync function that doesn't failAlex Auvolat2021-02-231-3/+3
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* Handle correctly deletion dues to offloadingAlex Auvolat2021-02-231-23/+21
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* Several changes in table_sync:Alex Auvolat2021-02-231-1/+1
| | | | | - separate path for case of offloading a partition we don't store - use sync::Mutex instead of tokio::Mutex, make less fn's async
* Some refactoringAlex Auvolat2021-02-211-1/+2
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* Propose ETag fixbug/etagAlex Auvolat2020-12-051-1/+2
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* data hexdump in warningfeature/better-crdtAlex Auvolat2020-11-201-0/+3
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* Warning when cannot decode entry (data format incompatibilities)Alex Auvolat2020-11-201-8/+13
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* Refactor error management in API parterror-refactoringAlex Auvolat2020-11-081-1/+1
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* cargo fmtAlex Auvolat2020-07-081-13/+10
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* Add support for model migrationsAlex Auvolat2020-07-081-73/+19
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* Split code for modular compilationAlex Auvolat2020-04-241-10/+10
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* Reorganize codeAlex Auvolat2020-04-231-0/+524
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