fujian created KAFKA-19858:
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Summary: Add configurable min.insync.replicas (default=2) for
__remote_log_metadata topic
Key: KAFKA-19858
URL: https://issues.apache.org/jira/browse/KAFKA-19858
Project: Kafka
Issue Type: Improvement
Components: Tiered-Storage
Reporter: fujian
Assignee: fujian
The __remote_log_metadata internal topic currently lacks a configurable
min.insync.replicas setting, relying on the broker-level default (typically 1).
This creates a data loss risk in production environments, as writes may be
acknowledged by only a single replica.
This is inconsistent with __transaction_state, which explicitly sets
min.insync.replicas=2 via the transaction.state.log.min.isr broker
configuration. Both topics store critical metadata and should have equivalent
durability guarantees.
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