Arjun Ashok created CASSANDRASC-151:
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Summary: Sidecar endpoint to support node decommission operation
Key: CASSANDRASC-151
URL: https://issues.apache.org/jira/browse/CASSANDRASC-151
Project: Sidecar for Apache Cassandra
Issue Type: Improvement
Reporter: Arjun Ashok
This proposal is part of an effort to introduce bespoke Sidecar APIs to support
key operational functionality currently managed through nodetool commands.
Introducing these APIs offers several benefits:
* Strong Contract Definition: APIs provide a well-defined contract for both
request and response structures, reducing errors in operational tooling by
eliminating the need to parse command results.
* Error Handling: A clear response contract allows for meaningful error
messages to be communicated to clients, without exposing internal
implementation details.
* Input Validation: APIs can incorporate input validation to enhance security
by protecting against command injection attacks.
* Version Compatibility: By exposing a standardized interface, APIs ensure
compatibility across different Cassandra versions, through the sidecar's
abstraction.
* Access Control: APIs enable fine-grained access control, leveraging
permissions and roles associated with client identities for precise
authorization.
This specific task introduces an endpoint that performs the node decommission
operation on the corresponding Cassandra node. Since decommissioning is a
long-running operation, this API will leverage the async job management
framework tracked in CASSANDRASC-150.
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