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Tyler Crain

Cross Cluster Synchronization in Alluxio – Part 3: Discussions and Conclusion

February 8, 2023 By Tyler Crain

Following part 1 and part 2, this final blog of the series discusses some design decisions and details, as well as certain future work. Discussions and Future Work Why not exactly once delivery for pub/sub? As we know, exactly once message delivery for pub/sub would greatly simplify our design and there do exist many powerful … Continued

Cross Cluster Synchronization in Alluxio – Part 2: Mechanism

February 8, 2023 By Tyler Crain

This is part 2 of the blog series talking about the design and implementation of the Cross Cluster Synchronization mechanism in Alluxio. In the previous blog, we discussed the scenario, background and how metadata sync is done with a single Alluxio cluster. This blog will describe how metadata sync is built upon to provide metadata … Continued

Cross Cluster Synchronization in Alluxio – Part 1: Scenarios and Background

February 8, 2023 By Tyler Crain

This is a blog series talking about the design and implementation of the Cross Cluster Synchronization mechanism in Alluxio. This mechanism ensures that the metadata is consistent when running multiple Alluxio clusters. Part 1 of this blog series discusses the scenario and background. Alluxio lies in between the storage and compute layers in order to … Continued

From Zookeeper to Raft: How Alluxio Stores File System State with High Availability and Fault Tolerance

April 13, 2022 By Tyler Crain

Raft is an algorithm for state machine replication as a way to ensure high availability (HA) and fault tolerance. This blog shares how Alluxio has moved to a Zookeeper-less, built-in Raft-based journal system as a HA implementation.

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