WebSphere Application Server & Liberty

On Wednesday, October 21st at 11:00 AM ET, I'll be presenting the Top 10 Performance and Troubleshooting tips for WebSphere Application Server traditional and Liberty: https://techtv.bemyapp.com/#/conference/5f6d07f9649cbe001b302113

This session will include a live demo showing some of these tips in action. You will have time to ask questions of the experts on the show!

Here's a sneak peek of the topics we'll cover:

Top 5 Performance tips:

1. Tune maximum Java heap and nursery sizes using verbosegc
2. Tune thread pools and connection pools
3. Ensure CPU, RAM, network, and disk aren’t saturated
4. Monitor arrival rate, response times, utilization, error rate and throughput
5. Aggressively use caching where possible

Top 5 Troubleshooting tips:

1. Gather multiple thread dumps and basic OS statistics during an issue. Collect all logs.
2. Use hung thread detection (tWAS) and requestTiming (Liberty) for long responses
3. Use a sampling profiler
4. For J9 JVMs, use OS core dumps instead of PHDs for OutOfMemoryErrors
5. Consider using the NCSA Access Log

Replay: https://youtu.be/JfVUdbw1wN4?t=68

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