SQL Server troubleshooting for SMEs and operations teams
When incidents keep returning or the production database is under pressure, I help steady the situation, find the cause and give the team a clear way forward.
- Recurring production incidents
- Blocking, deadlocks and pressure under load
- Failover and configuration problems
- Root-cause review after the fire is out
Targeted diagnosis, not restart-and-hope
Deadlock analysis
Capture and decode deadlock graphs, identify the conflicting resources and queries, and implement changes to eliminate recurring deadlocks.
Blocking chains
Trace blocking hierarchies in real time, identify the primary blocker, and resolve the root cause, whether it is a long-running transaction, poor indexing or lock promotion.
Tempdb troubleshooting
Diagnose tempdb contention, allocation bottlenecks, version store growth, and spills that cause intermittent slowdowns and outages.
Memory pressure
Identify excessive memory grants, plan cache bloat, buffer pool pressure, and RESOURCE_SEMAPHORE waits that degrade server performance.
Failover & availability
Investigate unexpected failovers, Always On health issues, log transport delays, and cluster problems that threaten availability.
Incident response
Rapid triage for active production incidents: steady things first, then identify the root cause and document what needs to change afterwards.
Steady the issue, diagnose it properly, stop it happening again
Production troubleshooting is not about guessing. I follow a structured process: reduce the immediate impact, capture the right diagnostic data, identify the root cause with evidence and put a fix in place that lasts. Then I document what happened and what should change so the same incident is less likely to return.
- Immediate triage to reduce blast radius.
- Diagnostic capture with minimal additional overhead.
- Root cause identification backed by evidence.
- Clear follow-up notes and prevention plan.
Common questions about troubleshooting
How fast can you respond to a production issue?
For active incidents, I aim to begin triage within hours. I work remotely via secure screen-sharing or VPN access, so there's no travel delay. Response time depends on current availability. Reach out and I'll confirm.
Do you work remotely or on-site?
Primarily remote. Most SQL Server troubleshooting is done through remote access to the server or monitoring tools. On-site engagement is possible for specific situations, discussed case by case.
Can you help prevent the same issue from recurring?
Yes. After resolving the immediate problem, I document the root cause and recommend changes in configuration, indexing, code, or monitoring to prevent recurrence. I can also set up alerts for early warning.
Do you support Azure SQL and managed instances?
Yes. I troubleshoot SQL Server on-premises, Azure SQL Database, and Azure SQL Managed Instance. The diagnostic approach adapts to each platform's tooling and constraints.
Dealing with a SQL Server issue right now?
Tell me what's happening. I'll assess the situation, explain what I'd investigate, and let you know if I can help.
