Christian Grobmeier on Log4j 2

Transcript

1. Apache Log4j 2
2. Christian Grobmeier @grobmeier http://www.grobmeier.de ASF V. P. Logging Services
3. http://www.leanpub.com/thezenprogrammer/c/linz
4. (hopefully) soon: www.understandinglog4j.com
5. Why should you log?
6. ASF FIRE BRIGADE
7. Log4j1, Log4j2 log4php Chainsaw log4net log4cxx
8. How do you log?
9. We are stable! Log4j 2.1
11. CHALLENGES
12. SPEED!
13. Failsafe. Reliable.
14. Compability.
15. Taste.
16. L o g g i n g with Duke
17. Too much t a s t e . . . m a k e s headache! Think on: log4j, logback, JUL, TinyLog, AVSL
18. Pills: Some Abstraction Layers
19. Commons Logging log4j 1 log4j 2 logback JUL Which pill?
20. slf4j Commons Logging log4j 1 log4j 2 logback JUL AVSL Which pill?
21. slf4j Commons Logging log4j 1 log4j 2 logback JUL AVSL New kids on the block log4j 2
22. log4j 2.x is the future of log4j
23. New in log4j 2.x
24. Instead: if (logger.isDebugEnabled()) logger.info("Hi, " + u.getA() + “ “ + u.getB()); Write: logger.info("Hi, {} {} ", u.getA(), u.getB()); API++
25. Marker: Marker SQL_MARKER = MarkerManager.getMarker("SQL"); logger.debug( SQL_MARKER, "SELECT * FROM {}", table); Better Filter
26. @Plugin(name = "Mine", type = "Core", elementType = "appender") public class Mine extends AppenderBase { private Mine(String name, Filter f) { super(name, f, null); } public void append(LogEvent e) { … } Plugins
27. @PluginFactory public static Mine create( @PluginAttr("name") String n, @PluginElement("filters") Filter f) { return new Mine(n, f); } Plugins
28. <appenders> <Mine name="Hello_Linz" …> <PatternLayout pattern="%d{HH:mm} %msg%n"/> </Mine> </appenders> Configuration
29. <Configuration> <Appenders> <File name="Grobmeier" fileName="target/mylog.log"> <PatternLayout> <Pattern>%d %C{1.}</Pattern> </PatternLayout> </File> </Appenders> <Loggers> <Logger name="com.Bar" level="trace"> <AppenderRef ref="Grobmeier"/> </Logger> Configuration
30. <File name="App" fileName="app.log"> <PatternLayout> <pattern> %d $${jndi:logging/context-name} %m%n </pattern> </PatternLayout> </File> Configuration
31. JSON { "configuration": … "appenders": { "Console": { "name": "STDOUT", "PatternLayout": { "pattern": "%m%n" } }, ...
32. Configuration Reloading <configuration monitorInterval="30"> ... </configuration>
33. More? MDC (ThreadContext) EventLogger Flowtracing …
34. SPEED! log4j 1.x logback log4j 2.x Disabled 5 2386 2116 2314 Logging Performance in ns
35. SPEED! Async Logging Power!
36. Again: >18,000,000 messages / second On Solaris 10 (64bit) with JDK1.7.0_06, 4-core Xeon X5570 dual CPU @2.93Ghz with hyperthreading switched on (16 virtual cores)
37. LMAX DISRUPTOR removes the kernel need for locks on the CPU level
38. CHAINSAW
40. The story of log4php Community
41. Good times, bad times 1999 2005 2010 2011
42. You are welcome Join ~8 active committers.
43. We are back! 2013: 1018 Changes 4730 Mails 2014: 1502 Changes 8501 Mails
44. Seriously. Isn‘t logging just BORING?
45. Well... how do you log on your mobile/cloud apps?
46. With new innovation, new logging challenges come up. Logging needs innovation too.
47. Logger Log Collector Log Search Log Analysis
48. Logger Log Collector Log Search Log Analysis
49. Logger Log Collector Log Search Log Analysis
51. Logging is mission critical.
52. One last thing...
53. Do we need a new Logging JSR? java.net/projects/newlogging
54. We are hiring! use it! ask questions! spread the love! send patches! general@logging.apache.org
55. Christian Grobmeier @grobmeier http://www.grobmeier.de Merci && Baba!
56. Image Credits Writing Girl (Erin Kohlenberg) Captain Kirk (http://dave-daring.deviantart.com/) Vulcano (Martin Barland) Fire Brigade (State Library of South Australia) Gear Necklace Designs (Eric Skiff) Gazelle (Flickr: fwooper) Golden Gate Bridge (Flickr: TimeLapseBlog.com) Pens (Flickr: JD | Photography) Wineglass (Flickr: Willia4) Headache (Flickr: Threephin) Pills (Dr. Michael Günther) Wheelgear (Flickr: ralphbijker) Chainsaw (Flickr: Dave Hosford) Elephant (Flickr: Werner Vermaak) Haunted House (Flickr: barb_ar) SOS (Flickr: Daquella Manera) Bathtime muscles (Flickr: mollypop) Yawning Animal (Flickr: robef) Mobile (Flickr: twicepix) Steve (https://www.flickr.com/photos/-macjasp/) Paul Carmody Clouds (Flickr: karindalziel) Fight (Flickr: KellBailey)