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XtreemOS Changelog

What's new in XtreemOS 2.1

Mar 23, 2010
  • Scalability:
  • supporting hundreds of thousands of nodes and millions of users dynamically joining and leaving the Grid,
  • Transparency:
  • hiding the complexity of the Grid by distributed operating system services allowing to run new and legacy applications seamlessly,
  • Interoperability:
  • complying with all major standards such as POSIX and SAGA,
  • Dependability:
  • providing reliability and high availability through checkpointing and replication,
  • Security:
  • ensuring trust and integrity according to customizable policies.

New in XtreemOS 0.10.1 (Nov 3, 2008)

  • minor bug fixes for 0.10.0

New in XtreemOS 0.10.0 (Oct 29, 2008)

  • Significantly increased client performance. The XtreemFS access layer now exhibits an acceptable performance when reading and writing file content and metadata.
  • Added OSD checksums. Data can now be internally checksummed by an OSD. If a checksum does not match its expected value when scrubbing a file, an error is reported.
  • Added scrubber and cleanup tools for system maintenance. The scrubber veri- fies checksums and tests whether file sizes in the MRC and OSD are consis- tent. The cleanup tool searches OSDs for orphaned objects, which can either be deleted or assigned to new files.
  • Added support for service identification with UUIDs. Services are now iden- tified by means of UUIDs rather than URLs, which allows a migration of ser- vices between machines.
  • First experimental distribution of a WIN32 client.