Dynamic page caching for Magnolia 5.4
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The document discusses the implementation of dynamic page caching in Magnolia 5.4, emphasizing the importance of caching mechanisms for improving perceived performance and resource allocation. It covers various caching strategies, including the transition from Ehcache 1.5 to 2.10, the use of Memcached for enhanced performance, and the introduction of a new cache browser tool. The presentation also highlights the need for careful consideration of dynamic content and personalization in caching strategies to avoid rendering delays.
Dynamic page caching for Magnolia 5.4
- 2. Magnolia Conference • Wednesday, June 10, 2015 • Basel, Switzerland, Europe, Earth, Solar System, Milky Way Dynamic Page Caching in Magnolia 5.4 2 Jan HaderkaRoman Kovařík #mconf15 @rah003
- 3. 3 2015 Magnolia 5.4 2014 Magnolia 5.3 #mconf15 @rah003
- 4. in Magnolia 5.4 4 State of Cache Flickr / Taro Taylor #mconf15 @rah003
- 5. 5 Cache? Just one? FM TL Cache Browser Cache HttpResp Cache Unsplash RestReq Cache RegistriesJR Item Cache #mconf15 @rah003
- 6. Cache is a trade-off between perceived performance of a system, internal resource allocation and currentness of delivered data 6 Do we need more? Flickr / Kenny Louie #mconf15 @rah003
- 7. 7 Cache implementation Flickr / A Syn Restructured & improved #mconf15 @rah003
- 8. 8 Cache module structure Flickr / A Syn #mconf15 @rah003
- 9. 9 Cache implementation Flickr / A Syn Separate config per cache #mconf15 @rah003
- 10. 10 Flickr / A Syn #mconf15 @rah003
- 11. 11 Cache implementation Flickr / A Syn Site-aware CacheFilter #mconf15 @rah003
- 12. 12 Flickr / A Syn #mconf15 @rah003
- 13. 13 Flickr / A Syn #mconf15 @rah003
- 14. 14 Cache implementation Flickr / A Syn Cache core, impl and UI are now separate #mconf15 @rah003
- 15. 15 Cache module structure Flickr / A Syn #mconf15 @rah003
- 16. 16 Cache implementation Flickr / A Syn ehCache 1.5 replaced w/ 2.10 #mconf15 @rah003
- 17. 17 Flickr / A Syn #mconf15 @rah003 ehCahe 1.5 ehCahe 2.10
- 18. 18 new ehCache Flickr / A Syn 5-10% better performance #mconf15 @rah003
- 19. 19 Flickr / A Syn #mconf15 @rah003
- 20. 20 new ehCache Flickr / A Syn no more disk persistence #mconf15 @rah003
- 21. 21 no disk persistence? Flickr / A Syn • cache is for production use • when do you restart prod server? • on update • on crash #mconf15 @rah003
- 22. 22 no disk persistence? Flickr / A Syn drop-in replacement w/ persistence is BigMemory #mconf15 @rah003
- 23. 23 Cache implementation Flickr / A Syn new Memcached impl #mconf15 @rah003
- 24. 24 Why Memcached? Flickr / A Syn separate servers #mconf15 @rah003
- 25. 25 Flickr / A Syn #mconf15 @rah003
- 26. 26 Why Memcached? Flickr / A Syn clusterable #mconf15 @rah003
- 27. 27 Flickr / A Syn #mconf15 @rah003
- 28. 28 Why Memcached? Flickr / A Syn eternal #mconf15 @rah003
- 29. 29 Flickr / A Syn #mconf15 @rah003
- 30. 30 Why Memcached? Flickr / A Syn shareable #mconf15 @rah003
- 31. 31 Flickr / A Syn #mconf15 @rah003
- 32. 32 Why Memcached? Flickr / A Syn double performance when serving first request* #mconf15 @rah003 * measured with two public instances connected to same memcached server
- 33. 33 Flickr / A Syn #mconf15 @rah003
- 34. 34 Flickr / A Syn #mconf15 @rah003
- 35. 35 Cache implementation Flickr / A Syn new Supercache impl #mconf15 @rah003
- 36. 36 Why Supercache Flickr / A Syn external & persistent #mconf15 @rah003
- 37. 37 Why Supercache Flickr / A Syn served by load balancer #mconf15 @rah003
- 38. 38 Why Supercache Flickr / A Syn available for onDemand and sysEleven hosting #mconf15 @rah003
- 39. 39 Cache tools Flickr / A Syn new Cache browser app #mconf15 @rah003
- 40. 40 Flickr / A Syn #mconf15 @rah003
- 41. 41 Flickr / A Syn #mconf15 @rah003
- 42. 42 Flickr / A Syn #mconf15 @rah003
- 43. 43 Cache Browser Flickr / A Syn explore your cache #mconf15 @rah003
- 44. 44 Flickr / A Syn #mconf15 @rah003
- 45. 45 Cache Browser Flickr / A Syn exercise control #mconf15 @rah003
- 46. 46 Flickr / A Syn #mconf15 @rah003
- 47. 47 Cache Browser Flickr / A Syn one that rules them all #mconf15 @rah003
- 48. 48 Flickr / A Syn #mconf15 @rah003
- 49. 49 In summary Flickr / A Syn •auto-discovery •using REST •single point of control •implementation agnostic #mconf15 @rah003
- 50. 50 Cache Browser Flickr / A Syn #mconf15 @rah003 Demo time?
- 51. 51 Flickr / A Syn #mconf15 @rah003
- 52. 52 What about personalised pages? Flickr / A Syn They are now cached too #mconf15 @rah003
- 53. 53 How? Flickr / A Syn •p13n provides variant info into the cache key •Each variant gets it’s own cache entry #mconf15 @rah003
- 54. 54 Can personalised pages share fragments? Flickr / A Syn Yes, you need to: • configure such fragment as dynamic • use custom cache key generator #mconf15 @rah003
- 55. 55 Why not to share by default? Flickr / A Syn • complexity • performance #mconf15 @rah003
- 56. 56 Advanced Cache Flickr / A Syn Dynamic Page Caching DPC #mconf15 @rah003
- 57. 57 Dynamic? Flickr / A Syn Isn’t dynamic non-cacheable? #mconf15 @rah003
- 58. 58 Dynamic? Flickr / A Syn “dynamic pages are composed of fragments of content with different time-to-live” #mconf15 @rah003
- 59. 59 So how do you do it? Flickr / A Syn Just render the page ;) #mconf15 @rah003
- 60. 60 Flickr / A Syn #mconf15 @rah003 http://my.domain.com/travel http://my.domain.com/travel/main/0 http://my.domain.com/travel/ footer/04 http://my.domain.com/travel/footer/03 http://my.domain.com/travel/footer/02 http://my.domain.com/travel/ footer/01
- 61. 61 Magnolia meets SiteMesh Flickr / A Syn #mconf15 @rah003
- 62. 62 Magnolia meets SiteMesh Flickr / A Syn #mconf15 @rah003
- 63. 63 Listen to HTML only Flickr / A Syn #mconf15 @rah003
- 64. 64 Inject content for components Flickr / A Syn #mconf15 @rah003
- 65. 65 What tags? Flickr / A Syn #mconf15 @rah003 <mgnl:injecturi target=“/demo- project/about~mgnlArea=branding~” X-Magnolia-Fragment=“sitemesh=skip, ttl=0" >
- 66. 66 And those tags, Flickr / A Syn they got in, how exactly? #mconf15 @rah003
- 67. 67 Flickr / A Syn #mconf15 @rah003 listener.beforeRender() listener.afterRender()
- 68. 68 Tags? Yeah, I did those! Flickr / A Syn #mconf15 @rah003 Home address: config:/server/rendering/engine/listeners
- 69. 69 Is this configured? Flickr / A Syn #mconf15 @rah003
- 70. 70 In summary Flickr / A Syn • RenderingListener will inject tags • SiteMeshFilter will replace tags with cached (or rendered entries) of content • SiteMesh lives in the chain before Cache, so it is all transparent to it #mconf15 @rah003
- 71. 71 In summary Flickr / A Syn • Page can consist of multiple fragments with different TTL • Upon expiration content will be re-rendered • Cache filter will cache whatever requested, fragment or full page#mconf15 @rah003
- 72. 72 Remember Flickr / A Syn The main goal of DPC is improving performance. This is done by caching non-dynamic portions of a page #mconf15 @rah003
- 73. 73 BEWARE! Flickr / A Syn Every dynamic component needs to be requested separately. That means, more dynamic components = more time to render. #mconf15 @rah003
- 74. 74 BEWARE! Flickr / A Syn more dynamic components = slower rendering Consider excluding such page from the cache! #mconf15 @rah003
- 75. 75 BEWARE! Flickr / A Syn Although recursive dynamic fragments are supported, it doesn't make sense to use this feature unless nested components have different TTL. #mconf15 @rah003
- 76. 76 BEWARE! Flickr / A Syn Group of dynamic components located next to each other will be rendered faster in one dynamic area rather than each separately. #mconf15 @rah003
- 77. 77 Say it really works, Flickr / A Syn but does it actually scale? #mconf15 @rah003
- 78. 78 Performance ✔ Flickr / A Syn #mconf15 @rah003 Page=cached SiteMesh=false Page=cached SiteMesh=true Snippets: none Page=cached SiteMesh=true Snippets: 1cached Page=cached SiteMesh=true Snippets: 1uncached Page=uncached SiteMesh=false Page=uncached SiteMesh=true TTFB 0.00233 0.00311 0.004119 0.04095 0.04864 0.06377 Total 0.00275 0.00315 0.004142 0.04143 0.06443 0.06418 % TTFB 5 6 8 84 100 131 % Total 4 5 6 64 100 100
- 79. 79 Can same fragment be shared by multiple pages? Flickr / A Syn yes, but you need custom cache key/generator (just like p13n) #mconf15 @rah003
- 81. 81 Backup
- 82. 82 NonCacheableEntry Flickr / A Syn anti-coagulant for your pipeline #mconf15 @rah003
- 83. 83 NonCacheableEntry Flickr / A Syn #mconf15 @rah003
- 84. PersonalizationAnalytics Commerce CRM www Mobile Site Newsletter Landing PageApp Integration/Inbound Multi-Channel OutboundMulti-Channel Outbound PersonalizationAnalytics Commerce CRM www Mobile Site Newsletter Landing PageApp
- 86. 86 Unsplash / Maja Petric Integrations Google Analytics IBM Digital Analytics AWSJelastic IBM Bluemix Groovy Spring LDAP /ADNTLM Alfresco Canto Cumulus Bright- cove Share- point Photo- shop Magento Hybris KonaKart IBM Smarter Commerce Salesforce SugarCRM Campaign Monitor Click- density Eloqua Optimizely Steelhouse Canvas Atom /RSS AddThis Facebook Flickr Share- This Twitter Apache Solr Apache OFBiz SAP
- 87. 87 ✔ ✔ ✔ ✔ ✔