Data Monitoring
A panel creates thousands of series and becomes unreadable. Measure distinct split values and identify which operational decision needs each series.
Splunk Alerts & Dashboard Operations1 min read
Read article : Splunk: High-cardinality dashboard splits
Data Monitoring
A small critical service disappears from a volume-ranked chart. Compare critical-service coverage with the top-N selection.
Splunk Alerts & Dashboard Operations1 min read
Read article : Splunk: Top-N visibility gaps
Data Monitoring
A user mistakes expired search results for an ingestion outage. Compare search job expiration with source availability in a fresh bounded search.
Splunk Alerts & Dashboard Operations2 min read
Read article : Splunk: Search job lifecycle
Data Monitoring
Planned work creates repeated incidents during a known outage. Inspect approved maintenance scope, duration and the alert entities it should affect.
Splunk Alerts & Dashboard Operations1 min read
Read article : Splunk: Alert maintenance windows
Data Monitoring
A wallboard refresh interval produces more search load than expected. Count panel searches per refresh and compare aggregate runtime with concurrent viewers.
Splunk Alerts & Dashboard Operations2 min read
Read article : Splunk: Dashboard cost of auto-refresh
Data Monitoring
An alert works for the happy path but misses a boundary condition. Prepare synthetic cases below, at and above the threshold, plus missing fields and late events.
Splunk Alerts & Dashboard Operations2 min read
Read article : Splunk: Detection test fixtures
Data Monitoring
Overlapping searches create multiple tickets for one underlying issue. Compare entity, condition and time-window identifiers across generated notifications.
Splunk Alerts & Dashboard Operations1 min read
Read article : Splunk: Incident deduplication
Data Monitoring
A dashboard has no documented owner or response procedure. Inventory saved searches, permissions, input dependencies and alert recipients.
Splunk Alerts & Dashboard Operations1 min read
Read article : Splunk: Splunk monitoring handover
Data Monitoring
A problematic query is absent from the expected historical view. Inspect Query Store state, capture policy and the time period of interest.
SQL Server Query Performance2 min read
Read article : SQL Server: Query Store capture coverage
Data Monitoring
A previously fast query slows after a deployment. Compare query identity, execution counts and plan history across equivalent workload intervals.
SQL Server Query Performance2 min read
Read article : SQL Server: Query duration regression
Data Monitoring
A summary exaggerates a regression by averaging interval averages equally. Compare execution counts and total work for intervals with different traffic volumes.
SQL Server Query Performance2 min read
Read article : SQL Server: Weighted execution averages
Data Monitoring
A very fast query consumes most database CPU because it executes often. Compare total CPU contribution, per-execution CPU and call frequency.
SQL Server Query Performance2 min read
Read article : SQL Server: High total CPU versus slow single calls