merlimat opened a new issue #13717:
URL: https://github.com/apache/pulsar/issues/13717
## Motivation
Since all the pieces that composed the proposal in PIP-45 were finally merged
and are currently ready for 2.10 release, it is now possible to add other
metadata backends that can be used to support a BookKeeper + Pulsar cluster.
One of the popular systems that is most commonly used in alternative of
ZooKeeper is Etcd, thus it makes sense to have this as the first
non-zookeeper
implementation.
## Goal
Provide a Etcd implementation for the `MetadataStore` API. This will allow
users to deploy Pulsar clusters using Etcd service for the metadata and it
will
not require the presence of ZooKeeper.
## Implementation
* Use the existing JEtcd Java client library for Etcd
* Extends the `AbstractBatchedMetadataStore` class, in order to reuse the
transparent batching logic that will be shared with the ZookKeeper
implementation.
Work in progress: https://github.com/apache/pulsar/pull/13225
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