Apache HBase online migration to Amazon EMR uses snapshot and replication techniques to migrate HBase data from on-premises or other cloud providers to HBase on Amazon EMR running on Amazon S3, without significant service downtime.

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<p>This article provides a comprehensive guide on migrating Apache HBase online to Amazon EMR, covering both the general process and handling specific challenges.</p>
<p>Specifically, the article covers:</p>
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<li>Recommended HBase deployment mode (on Amazon S3)</li>
<li>Recommended HBase migration mode (using snapshots and replication)</li>
<li>Prerequisites for migration</li>
<li>Step-by-step solution walkthrough for the general migration process</li>
<li>Handling challenges like lack of snapshot support, single large tables, and using BucketCache</li>
<li>Key learnings and best practices from real-world migration cases</li>
<li>Benchmark results showing performance benefits of using BucketCache</li>
<li>Conclusion summarizing the migration approach</li>
</ul>
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Apache HBase online migration to Amazon EMR

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