Percona Live: Data Performance Conference 2016 Logo

April 18-21, 2016

Santa Clara, California

MongoDB Chunks – Distribution, Splitting, and Merging

MongoDB Chunks – Distribution, Splitting, and Merging

 19 April 02:20 PM - 3:10 PM @ Ballroom B
Experience level: 
50 minutes conference


MongoDB Chunks – Distribution, Splitting, and Merging This presentation will discuss how the distribution of chunks can create scenarios where you may need to manually move, split, or merge chunks in your sharded cluster. Scenarios requiring these actions can exist with both optimal and sub-optimal shard keys. This can be especially true when a new change has been introduced to the workload. It may cause hot-spotting, unbalanced storage, or empty chunks. Example use cases will provide tips on detecting this issue, reasons why you may encounter these scenarios, and specific steps you can take to rectify the issue.


Jason Terpko's picture

Jason Terpko

Database Administrator, ObjectRocket by Rackspace


Jason has over 10 years working on various database technologies, which include relational, columnar, and NoSQL platforms. He is currently focused on MongoDB at ObjectRocket by Rackspace supporting customers with existing MongoDB implementations or those just entering the NoSQL space. Before that, Jason worked as a MySQL and Vertica DBA for various firms in Manhattan that were in the financial reporting/investment management industries. He enjoys solving complex problems that involve data distribution, chunk management, and scripting in both Python and Javascript. When not busy with databases, he also spending time outdoors.

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