~/talk

Using Dynatrace and Kibana to Identify Bad Queries and Optimise Them

Talkat NODES 2024 · on Thursday, 2024-11-07· [observability, databases]
links:none on file
slides:none on file

Dynatrace and Kibana expose long JVM GC pauses that freeze Neo4j for minutes and cause reboots; tracing unique query IDs shows microservices issue bad traversals and large aggregations. Replacing a heavy custom traverser with a light traversal-plugin and streaming relationships instead of collect/unwind aggregations cuts memory pressure and stops full GCs. Load tests (JMeter) show one endpoint drops average latency by 64% and another by 93% avg / 96% max, and the DB records zero failures in the last year.

AI-written summary · about

  1. 0:00Introduction to talk
  2. 1:55NEJ memory and garbage collection
  3. 4:06Detecting issues with Dynatrace
  4. 5:10Identifying slow queries
  5. 6:14Optimizing graph traversal
  6. 8:23Case study water network
  7. 11:43Results and conclusion
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