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# Milvus 2.x vs. 1.x: Cloud-native, distributed architecture, highly scalable, and more

<table class="comparison">
<thead>
	<tr>
		<th>&nbsp;</th>
		<th>Milvus 1.x</th>
		<th>Milvus 2.x</th>
	</tr>
	<tr>
		<th>Architecture</th>
		<td>Shared storage</td>
		<td>Cloud native</td>
	</tr>
</thead>
<tbody>
	<tr>
		<th>Scalability</th>
		<td>1 to 32 read nodes with only one write node</td>
		<td>500+ nodes</td>
	</tr>
  	<tr>
		<th>Durability</th>
		<td>
			<li>Local disk</li>
			<li>Network file system (NFS)</li>
		</td>
		<td>
			<li>Object storage service (OSS)</li>
			<li>Distributed file system (DFS)</li>
		</td>
	</tr>
  	<tr>
		<th>Availability</th>
		<td>99%</td>
		<td>99.9%</td>
	</tr>
	<tr>
		<th>Data consistency</th>
		<td>Eventual consistency</td>
		<td>Three levels of consistency:
			<li>Strong</li>
			<li>Bounded Staleness</li>
			<li>Session</li>
			<li>Consistent prefix</li>
		</td>
	</tr>
	<tr>
		<th>Data types supported</th>
		<td>Vectors</td>
		<td>
			<li>Vectors</li>
			<li>Fixed-length scalars</li>
			<li>VARCHAR <a href="https://github.com/milvus-io/milvus/releases/tag/v2.1.0"><img src="https://img.shields.io/badge/feature-2.1-brightgreen" /></a></li>
		</td>
	</tr>
	<tr>
		<th>Basic operations supported</th>
		<td>
			<li>Data insertion</li>
			<li>Data deletion</li>
			<li>Approximate nearest neighbor (ANN) Search</li>
		</td>
		<td>
			<li>Data insertion</li>
			<li>Data deletion <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
			<li>Data query</li>
			<li>Approximate nearest neighbor (ANN) Search</li>
			<li>Recurrent neural network (RNN) search <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
		</td>
	</tr>
	<tr>
		<th>Advanced features</th>
		<td><li>Mishards</li><li>Milvus DM</li></td>
		<td><li>Scalar filtering</li><li>Time Travel</li><li>Multi-site deployment and multi-cloud integration</li><li>Data management tools</li></td>
	</tr>
	<tr>
		<th>Index types and libraries</th>
		<td>
			<li>Faiss</li>
			<li>Annoy</li>
			<li>Hnswlib</li>
			<li>RNSG</li>
		</td>
		<td>
			<li>Faiss</li>
			<li>Annoy</li>
			<li>Hnswlib</li>
			<li>RNSG</li>
			<li>ScaNN <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
			<li>On-disk index <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
		</td>
	</tr>
	<tr>
		<th>SDKs</th>
		<td>
			<li><a href="https://github.com/milvus-io/pymilvus/tree/1.x">Python<a></li>
			<li><a href="https://github.com/milvus-io/milvus-sdk-java">Java</a></li>
			<li><a href="https://github.com/milvus-io/milvus-sdk-go/tree/1.x">Go</a></li>
			<li><a href="https://github.com/milvus-io/milvus/tree/1.1/core/src/server/web_impl">RESTful</a></li>
			<li><a href="https://github.com/milvus-io/milvus/tree/1.1/sdk">C++</a></li>
		</td>
		<td>
			<li><a href="https://github.com/milvus-io/pymilvus">Python<a></li>
			<li><a href="https://github.com/milvus-io/milvus-sdk-node">Node</a></li>
			<li><a href="https://github.com/milvus-io/milvus-sdk-go">Go</a></li>
			<li><a href="https://github.com/milvus-io/milvus-sdk-java/tree/master">Java</a></li>
			<li>RESTful <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
			<li>C++ <img src="https://img.shields.io/badge/status-in%20planning-blue" alt="in planning" /></li>
		</td>
	</tr>
	<tr>
		<th>Release status</th>
		<td>Long-term support (LTS)</td>
		<td>General Availability.</td>
	</tr>
</tbody>
</table>

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Отправлено 08.10.2022 08:52 6d1a866

Milvus 2.x vs. 1.x: Cloud-native, distributed architecture, highly scalable, and more

	Milvus 1.x	Milvus 2.x
Architecture	Shared storage	Cloud native
Scalability	1 to 32 read nodes with only one write node	500+ nodes
Durability	Local disk Network file system (NFS)	Object storage service (OSS) Distributed file system (DFS)
Availability	99%	99.9%
Data consistency	Eventual consistency	Three levels of consistency: Strong Bounded Staleness Session Consistent prefix
Data types supported	Vectors	Vectors Fixed-length scalars VARCHAR
Basic operations supported	Data insertion Data deletion Approximate nearest neighbor (ANN) Search	Data insertion Data deletion Data query Approximate nearest neighbor (ANN) Search Recurrent neural network (RNN) search
Advanced features	MishardsMilvus DM	Scalar filteringTime TravelMulti-site deployment and multi-cloud integrationData management tools
Index types and libraries	Faiss Annoy Hnswlib RNSG	Faiss Annoy Hnswlib RNSG ScaNN On-disk index
SDKs	Python Java Go RESTful C++	Python Node Go Java RESTful C++
Release status	Long-term support (LTS)	General Availability.

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