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Arpit Bhayani Blogs
001 Ai Topological Sort

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TLDR: Multi-Master Conflicts - How to Handle Them

Date: 2022-01-03 Source: https://arpitbhayani.me/blogs/conflict-resolution

Overview

Explore conflict resolution strategies in multi-master databases. Learn to handle conflicts with unique IDs, database precedence, & custom logic. Every multi-master replication setup comes with a side-effect - Conflicts.

Key Points

  • Every multi-master replication setup comes with a side-effect - Conflicts.
  • Globally unique ID to transaction: One possible way to determine the order of the write operations spanning multiple masters is to assign globally unique monotonically increasing IDs to each write operation.
  • Precedence of a database: Given that managing an ID generator at scale could be taxing, another possible solution is to assign the order to the master nodes.
  • Track and Resolve: If, for a use case, it is not possible to resolve the conflicts at the database level, then the best approach in such a scenario is to record the conflict in a data structure designed to preserve all the information.
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002 Temporal Primer
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003 Rag Production
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004 Structure Of Llm Chat
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005 How Llms Work
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108 Conflict Detection
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113 Replication Formats
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115 Master Replica Replication
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116 Durability
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117 Isolation
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  • On Write: In this approach, as soon as a conflict is detected, the custom conflict resolution logic has triggered that resolve the conflict and make the data consistent.
  • On Reading: The other approach is to be lazy and resolve conflict when someone tries to read the conflicting data.

    • Takeaway

    The other approach is to be lazy and resolve conflict when someone tries to read the conflicting data.