tursodatabase / tursodatabase/libsql
Sync prevents concurrent reads?
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- C
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Description
Airyland on Discord reports that:
Appears that the embedded replica's .sync function is blocking SQL queries. Is there a way to allow queries to execute concurrently with the sync process?
SQLite itself should be able to serve reads while we're syncing and applying changes to the WAL. Perhaps there is a serializing lock somewhere that prevents this?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing whether the embedded replica's .sync function blocks concurrent SQL reads. Inspect the synchronization and WAL application path for the suspected serializing lock. Done means SQLite reads can execute while sync is applying changes, without breaking synchronization.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, rust, sqlite
- Domain
- database
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100