> ## Documentation Index
> Fetch the complete documentation index at: https://docs.solayer.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Multi-Executor Architecture

The **Solayer Chain** transaction processing pipeline adopts a **microservices architecture**, decoupling **signature verification, deduplication, scheduling, banking, and storage** into independent services. This design enables **dynamic scaling, speculative execution, and reduced processing overhead**, ensuring **high throughput and consistency**.

## Decoupling Transaction Processing with Microservices

Unlike traditional **monolithic blockchain architectures**, Solayer Chain decomposes key stages into **independent microservices** running across an **elastic compute fabric**:

1. **Signature Verification & Deduplication**
   * Offloaded to **distributed microservices**, reducing bottlenecks at the execution layer.
   * **Parallelized verification** ensures **low-latency transaction ingestion**.

2. **Dynamic Resource Provisioning**
   * A **feedback-driven control plane** monitors transaction rates and **automatically scales processing capacity**.
   * Enables **adaptive load balancing** based on network congestion and transaction spikes.

3. **Speculative Execution & Simulation**
   * Transactions **pre-execute against the latest committed state**, reducing contention in the banking stage.
   * **Non-conflicting transactions** execute in parallel, bypassing unnecessary dependencies.

## Speculative Execution & Conflict Resolution

A key insight in **Solayer Chain** is that **most transactions do not require full re-execution** if they do not introduce **read-write conflicts**.

1. **Pre-Execution & Snapshotting**
   * Transactions are **speculatively executed**, capturing **intermediate execution snapshots** at **account access boundaries**.
   * **Only 2% of transactions** require full re-execution, as most do not conflict.

2. **Read-Only Transactions at the Edge**
   * Transactions performing **only read operations** are **validated and finalized at the edge**, bypassing the **central banking stage**.

3. **Handling Hot Accounts with Predictive Modeling**
   * Accounts with **high access frequency** use a **Winter-Holt Double Exponential Smoothing (DESP) model** for **predictive execution**.
   * **Pre-executed transactions account for all possible future values** of hot accounts, reducing conflicts.

4. **Rapid Conflict Resolution**
   * For remaining conflicts, execution state is reconstructed **from the nearest valid snapshot**, eliminating **full re-execution overhead**.

## Impact on Performance & Scalability

This pipeline improves scalability and efficiency:

* **Lower computational overhead** by shifting execution bottlenecks **away from centralized banking**.
* **Higher transaction throughput** through **parallel speculative execution** and **adaptive scaling**.
* **Reduced latency** for **read-only transactions**, finalized at the network edge.

By decoupling execution into microservices, using speculative pre-execution, and resolving conflicts from snapshots, Solayer Chain processes transactions with high throughput and minimal contention.