dlmarion commented on code in PR #441: URL: https://github.com/apache/accumulo-website/pull/441#discussion_r1756725133
########## _posts/blog/2024-08-30-accumulo4-preview.md: ########## @@ -0,0 +1,73 @@ +--- +title: "Accumulo 4.0 Feature Preview" +author: Dave Marion +--- + +## Background + +In version 2.1 we introduced two new optional and experimental features, [External Compactions](https://accumulo.apache.org/blog/2021/07/08/external-compactions.html) and [ScanServers](https://github.com/apache/accumulo/pull/2665). The ExternalCompactions feature included two new server processes, the CompactionCoordinator and the Compactor. Using these new processes and their related configurations allows the user to perform major compactions on Tablets external to the TabletServer process. The configuration in 2.1 allows the user to define different “queues” for the external compactions and to assign a “queue” to the Compactor process when it’s started. This provides the user with some capability to define the resources for different classes of compactions (see the referenced blog post for examples). ExternalCompactions may provide lower latency for major compactions because major compactions that run in the TabletServer may queue up with all of the major compaction thre ads are busy. Review Comment: There is a [ticket](https://github.com/apache/accumulo/issues/4463) for a blog post for Scan Servers, it just hasn't been completed yet. When that is completed, then this reference could be changed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
