1 / 17

XAM

XAM. XReplicator project. Developers: Burmak Alexander Mirov Yuriy Kovalev Igor Trainer: Alexeev Peter. Contents. About XAM Technology Why replication? What we’ve done Architecture XReplicator library XUtility Demonstration Resources. About XAM Technology.

marvin-holcomb
Télécharger la présentation

XAM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. XAM XReplicator project Developers: Burmak AlexanderMirov YuriyKovalev Igor Trainer: Alexeev Peter

  2. Contents • About XAM Technology • Why replication? • What we’ve done • Architecture • XReplicator library • XUtility • Demonstration • Resources

  3. About XAM Technology • eXtensible Access Method • Technology providing a unified interface between applications and storage systems • Industry standard API for Fixed Content Aware Storage • Makes developers independent from hardware • Easy migration between storages and applications

  4. Why replication? • Benefits of data replication • Reliability • Accessibility • Performance • Security • Shortage of analogues of client applications for XAM Storage Systems replication

  5. What we’ve done • XReplicator library, which enables XAM storages replication • XUtility, which uses XReplicator API and provides console user interface • XOnce, a Domain-Specified Language to make easy query to storage

  6. Architecture XReplicator XUtility XAM VIM VIM VIM

  7. XReplicator library • Replication – use RBaseAlgorithm or algorithm from third-party developers • XSystems collection manipulation • Direction of replication – mode parameter (in, out, inout) • Constraint for XSystem synchronization data: • XAM Query • Set of XUID • Configuration (XConfig) • Logging

  8. Replication – RBaseAlgorithm • Uses replication history (state of storage after replication) • Serialization/Deserialization to/from file • Uses XAM import/export mechanism • Solves “dirty” commit time problem • Saves timeCommit and timeSynchronize parameters • Solves conflicts of similar XSets • Supports XReplicator modes and constraints

  9. Logger • Logs information about replication, exceptions and configuration changes • Logs statistics about replication • Two types of log format: • XML • Simple • Supports log levels • Log entry content – time, method, level, message • Uses proxy-classes for incapsulation • Log file(s) settings – path, append, size limit , count

  10. XReplicator API architecture RAlgorithm XConfig XReplicator factory XHashSet InvocationHandler XReplicator XReplicator Module (Guice) XAM

  11. XUtility features • Remote control • Banning enabled • Multiple connections • Scripting • Reading text file with XUtility commands and executing it (like a command language) • Program args enabled (e.g. for third party planners) • Encrypt • Blowfish encryption • Corporate security raise • Out of the box planner for replication

  12. XUtility features • Multithreading • Every command runs in a different thread • Enabled background threads (e.g remote control, planner) • Commands to manage threads (e.g monitor, kill) • Extensibility • Dynamic plugins loading enabled (plugin = simple impl. of XOperation)

  13. XUtility architecture Parameters XOp. Thread XOp. Thread Plugin 1 Plugin N XOperation Collector XUtility Operation Set XReplicator Thread Set XAM

  14. XReplicator Demonstration

  15. Resources • www.snia.org – XAM 1.0.1 • developer.emc.com – Many help about XAM • groups.google.com/groups/xam-developers-group – Many help too • code.google.com/p/google-guice/ – GuiceIoC and DI • www.jetbrains.com/mps/ – MPS. Needed to create DSL XOnce • maven.apache.org – Maven build manager • www.junit.org – Unit tests

  16. XReplicaton on Open Source XReplicator.sourceforge.net

  17. Thank you for attention! Questions?

More Related