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The Distributed SQL Blog

Thoughts on distributed databases, open source, and cloud native

The Curious Case of the Ever-Increasing Tombstones

The Curious Case of the Ever-Increasing Tombstones

In storage systems based on LSM/MVCC, when a record is deleted, it’s not immediately removed. A delete marker (typically called a Tombstone) is placed on the record. As the number of tombstones increases, it could adversely affect the performance of a scan. In this blog, we are going to understand this problem and come up with solutions to address it.

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