scylladb / scylladb/scylla-cdc-java
Schema change support
Nobody has claimed this yet.
- Dominant language
- Java
- Stars
- 32
- Forks
- 23
- Avg merge
- 2d 6h
- Merged PRs (30d)
- 3
Description
Currently, the library handles schema change incorrectly.
Moreover, Driver3SchemaBuilder could be prone to race condition issues:
as it is not specified that this read base table schema will be fresh and the same as returned by the queries.
Contributor guide
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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 with scylla-cdc-driver3/src/main/java/com/scylladb/cdc/cql/driver3/Driver3SchemaBuilder.java at the referenced line 74, then trace how schema changes are handled and how the base-table schema is read. Determine how to ensure the schema used is correct and fresh under concurrent changes; done means schema changes are handled correctly without the identified race condition.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100