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19 commits

Author SHA1 Message Date
6d3ace1ea9 Fix undefined macro warn! on 32-bit
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Compiling garage_db v0.8.2 (garage-0.8.2/src/db)
    error: cannot find macro `warn` in this scope
       --> src/db/lmdb_adapter.rs:352:2
        |
    352 |     warn!("LMDB is not recommended on 32-bit systems, database size will be limited");
        |     ^^^^
        |
        = help: consider importing this macro:
                tracing::warn
        = note: `warn` is in scope, but it is an attribute: `#[warn]`
    error: could not compile `garage_db` due to previous error
2023-05-07 17:01:44 +02:00
0a1ddcf630 Prepare for v0.8.2
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2023-03-13 18:46:31 +01:00
Jonathan Davies
3dc655095f db/Cargo.toml: Updated rusqlite from 0.27 to 0.28.
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2023-01-26 11:13:11 +00:00
Jonathan Davies
20c1cdf662 Cargo.toml: Loosen tracing dependency to just 0.1. 2023-01-26 11:13:11 +00:00
Jonathan Davies
fbafa76284 {db,util}/Cargo.toml: Updated mktemp from 0.4 to 0.5. 2023-01-26 11:13:11 +00:00
Jonathan Davies
bcac889f9a Cargo.toml: Updated clap from 3.1.18 to 4.1. 2023-01-26 11:13:11 +00:00
6775569525
Bump everything to v0.8.1
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2023-01-02 14:15:33 +01:00
d6040e32a6
cli: prettier table in garage stats
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2022-12-13 15:43:22 +01:00
67941000ee
put sled as default feature in garage_db 2022-11-21 14:08:21 +01:00
c050a59fd0
Fix conditional testing in garage_db
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2022-10-14 18:27:18 +02:00
1449204439
Add warnings when features are not included in build
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2022-09-07 18:02:13 +02:00
b886c75450
Make all DB engines optional build features 2022-09-06 17:09:43 +02:00
729a910e14
Remove Heed default features
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2022-09-05 16:40:13 +02:00
7511ba5530 Allow linking against system-provided libsqlite
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Unfortunately, rusqlite uses the opposite logic for enabling/disabling
bundled libraries to others (libsodium-sys, zstd-sys). Cargo features
are very limited and doesn't allow to enable feature A in a dependency
iff feature B is disabled.

Note, lmdb-rkv-sys doesn't need any special treatment because it
automatically links against system liblmdb if found via pkgconf.

Linux distros should build garage with
`--no-default-features --features system-libs` to disable bundled-libs
and enable system-libs.
2022-09-03 19:15:57 +02:00
ac03fa7937
Uniformize tracing::* imports (hopefully fixes 32-bit build)
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2022-07-15 18:31:19 +02:00
4f38cadf6e Background task manager (#332)
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- [x] New background worker trait
- [x] Adapt all current workers to use new API
- [x] Command to list currently running workers, and whether they are active, idle, or dead
- [x] Error reporting
- Optimizations
  - [x] Merkle updater: several items per iteration
  - [ ] Use `tokio::task::spawn_blocking` where appropriate so that CPU-intensive tasks don't block other things going on
- scrub:
  - [x] have only one worker with a channel to start/pause/cancel
  - [x] automatic scrub
  - [x] ability to view and change tranquility from CLI
  - [x] persistence of a few info
- [ ] Testing

Co-authored-by: Alex Auvolat <alex@adnab.me>
Reviewed-on: #332
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>
2022-07-08 13:30:26 +02:00
77e3fd6db2 improve internal item counter mechanisms and implement bucket quotas (#326)
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- [x] Refactoring of internal counting API
- [x] Repair procedure for counters (it's an offline procedure!!!)
- [x] New counter for objects in buckets
- [x] Add quotas to buckets struct
- [x] Add CLI to manage bucket quotas
- [x] Add admin API to manage bucket quotas
- [x] Apply quotas by adding checks on put operations
- [x] Proof-read

Co-authored-by: Alex Auvolat <alex@adnab.me>
Reviewed-on: #326
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>
2022-06-15 20:20:28 +02:00
138e13071b
Fix garage_db build on 32-bit systems
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2022-06-09 14:55:20 +02:00
b44d3fc796 Abstract database behind generic interface and implement alternative drivers (#322)
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- [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: #322
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>
2022-06-08 10:01:44 +02:00