[KAFKA-1464] Add a throttling option to the Kafka replication tool

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.10.1.0
• Component/s: replication
• Labels: replication replication-tools
• Assignee: Ben Stopford
• Reporter: mjuarez
• Reviewer: Jun Rao
• Created: 21/May/14 17:33
• Updated: 16/Sep/16 05:28
• Resolved: 16/Sep/16 05:28

Description

When performing replication on new nodes of a Kafka cluster, the replication process will use all available resources to replicate as fast as possible. This causes performance issues (mostly disk IO and sometimes network bandwidth) when doing this in a production environment, in which you're trying to serve downstream applications, at the same time you're performing maintenance on the Kafka cluster.

An option to throttle the replication to a specific rate (in either MB/s or activities/second) would help production systems to better handle maintenance tasks while still serving downstream applications.

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