Restructuring classes and behaviour
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A user is a base user and an admin is also a base user. We've all seen this scenario once or twice during our careers. And then another programmer comes around and decides to make the base user extend of something else and soon the structure of the application becomes more clouded. There has to be a simpler solution to not duplicate code and share behaviour over all of the application… Let's talk about this with lots of Star Wars references.
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* Prioritize bug fixing over new features
* Prioritize security, usability and reliability over new features
* Provide good practices for using existing features, as many of them are overlooked or misused by users
2. New releases in Q2
3. Updates in LTS releases
Security fixes:
● SECURITY: upgrade Go builder from Go1.22.2 to Go1.22.4
● SECURITY: upgrade base docker image (Alpine)
Bugfixes:
● vmui
● vmalert
● vmagent
● vmauth
● vmbackupmanager
4. New Features
* Support SRV URLs in vmagent, vmalert, vmauth
* vmagent: aggregation and relabeling
* vmagent: Global aggregation and relabeling
* vmagent: global aggregation and relabeling
* Stream aggregation
- Add rate_sum aggregation output
- Add rate_avg aggregation output
- Reduce the number of allocated objects in heap during deduplication and aggregation up to 5 times! The change reduces the CPU usage.
* Vultr service discovery
* vmauth: backend TLS setup
5. Let's Encrypt support
All the VictoriaMetrics Enterprise components support automatic issuing of TLS certificates for public HTTPS server via Let’s Encrypt service: https://docs.victoriametrics.com/#automatic-issuing-of-tls-certificates
6. Performance optimizations
● vmagent: reduce CPU usage when sharding among remote storage systems is enabled
● vmalert: reduce CPU usage when evaluating high number of alerting and recording rules.
● vmalert: speed up retrieving rules files from object storages by skipping unchanged objects during reloading.
7. VictoriaMetrics k8s operator
● Add new status.updateStatus field to the all objects with pods. It helps to track rollout updates properly.
● Add more context to the log messages. It must greatly improve debugging process and log quality.
● Changee error handling for reconcile. Operator sends Events into kubernetes API, if any error happened during object reconcile.
See changes at https://github.com/VictoriaMetrics/operator/releases
8. Helm charts: charts/victoria-metrics-distributed
This chart sets up multiple VictoriaMetrics cluster instances on multiple Availability Zones:
● Improved reliability
● Faster read queries
● Easy maintenance
9. Other Updates
● Dashboards and alerting rules updates
● vmui interface improvements and bugfixes
● Security updates
● Add release images built from scratch image. Such images could be more
preferable for using in environments with higher security standards
● Many minor bugfixes and improvements
● See more at https://docs.victoriametrics.com/changelog/
Also check the new VictoriaLogs PlayGround https://play-vmlogs.victoriametrics.com/
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Restructuring classes and behaviour
- 2. PHP JAVA
- 3. We should ban the extends keyword from our language - @n0xie
- 4. We should ban the extends keyword from our language - @n0xie But WHY?
- 5. Why do we use Object Oriented programming?
- 6. Why don’t use inheritance?
- 12. Composition
- 54. So how do we make this better?
- 58. So when do we use inheritance?
- 61. Actual Impl
- 62. Method 1 Method 2 Method 3 Interface Composition Method 1 Method 2 Method 3
- 63. Method 1 Method 2 Method 3 Interface Inheritance Method 2
- 65. What are the drawbacks of composition?
- 71. Summary
- 75. What is what? Isolate behaviour Inherit to specify for your purpose
- 76. Questions?