Slow Azure MI Reporting

Optimize reports running slow on Azure SQL Managed Instance subscribers with targeted performance tuning.

The Problem

Reports that ran fine on-premises are now timing out or running unacceptably slow on Azure SQL Managed Instance subscribers. This is a common challenge when implementing transactional replication to Azure SQL MI for reporting workloads.

The subscriber database on Azure MI may experience different performance characteristics due to resource limitations, network latency, storage differences, or replication overhead. Without proper optimization, reporting queries can become painfully slow.

Users become frustrated, report deadlines are missed, and the business questions the value of the cloud migration.

Performance Improvement

5-20x

Typical reporting query speedup

Optimization Timeline

1-2 weeks

From analysis to implementation

Common Root Causes

3-5

Issues typically found per environment

Our Solution

Comprehensive performance analysis and optimization for Azure SQL MI reporting workloads

Query Performance Analysis

Deep dive into slow-running reports using Query Store and execution plan analysis specific to Azure MI.

  • • Query Store historical analysis
  • • Execution plan regression detection
  • • Wait statistics interpretation
  • • Resource consumption patterns

Azure MI Configuration Optimization

Optimize Azure SQL MI specific settings and configurations for optimal reporting performance.

  • • Service tier evaluation
  • • vCore and storage optimization
  • • Read scale-out configuration
  • • Resource governor settings

Index Strategy Redesign

Create optimized indexing strategy specifically for the reporting workload on the subscriber.

  • • Reporting-specific index design
  • • Columnstore index evaluation
  • • Index maintenance strategy
  • • Statistics optimization

Replication Optimization

Optimize transactional replication configuration to minimize latency and resource overhead.

  • • Replication article tuning
  • • Distribution agent optimization
  • • Conflict resolution strategy
  • • Latency monitoring setup

Common Root Causes

Issues we frequently identify and resolve

Missing Indexes

Indexes from source not replicated or not optimal for reporting queries on subscriber

Outdated Statistics

Statistics not updating properly on subscriber, leading to poor execution plans

Resource Constraints

Azure MI tier too small for the reporting workload requirements

Parameter Sniffing

Different data distribution on subscriber causing parameter sniffing issues

Replication Overhead

Distribution agent consuming resources during report execution windows

Read Scale Not Utilized

Applications not configured to use read-only replicas for reporting

Optimization Process

Our systematic approach to resolving Azure MI reporting performance issues

1

Baseline

Capture current performance metrics and problematic queries

2

Diagnose

Identify root causes using Azure MI diagnostics

3

Optimize

Implement targeted fixes and tuning

4

Validate

Measure improvements and document results

Speed Up Your Azure MI Reports

Stop suffering with slow reporting performance. Get expert Azure SQL MI optimization today.