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Database scaling & optimization

Indexing, connection pooling, read replicas, query tuning, and throughput-aware SQL.

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Database scaling & optimization medium

Two Phase Commit Cross Shard Mock in Python

Simulates a two-phase commit across shards with failure handling to demonstrate distributed transaction coordination in Python.

two-phase-commit distributed-systems transaction
Python 
"""Mock cross-shard two-phase commit with caution handling."""

class Shard:
    def __init__(self, name):
        self.name = name
        self.prepared = False
        self.committed = False
        self.aborted = False

    def prepare(self):
        # Simulate potential failure (1 in 3 chance on third shard)
     …
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