cockroachdb / cockroachdb/cockroach

logical: support more dlq compatible events

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#172,452 1 comment 0 reactions 0 assignees View on GitHub
A-logical-data-replication C-enhancement O-agent T-cdc
Dominant language
Go
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32.5k
Forks
4.1k
PR merge metrics
PR metrics pending

Description

The initial dlq-able set of errors will likely just be sql writer errors. However we have additional errors such as apply cycles that can also be dlq-ed. Another class of DLQ-able events would be unappliable rows due to schema skew (once we allow schema changes).

Epic: CRDB-65612

Jira issue: CRDB-65688

Contributor guide

Open the contributing guide

Research direction

Start by reading the linked epic CRDB-65612 and Jira issue CRDB-65688 to establish the intended scope; the issue does not name files, tests, or entry points. It mentions SQL writer errors, apply cycles, and rows that cannot be applied due to schema skew as DLQ-compatible events. Done would mean supporting the additional event types specified by the linked work.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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