XtreemFS Release 1.2

[Jan Stender]

XtreemFS 1.2 ("Luscious Lebkuchen") is now available at
http://www.xtreemfs.org.

New features:
- asynchronous MRC database backups (database dumps are created in the
background)
- new GRID SSL mode: SSL is used for authentication only, data is
transferred via plain TCP for a better performance
- Vivaldi-based replica selection and placement
- MRC and OSD wait and retry for a configurable time span if they cannot
reach the DIR on startup
- faster file copying of files with 'cp' (by providing correct values
for 'st_blksize' with 'getattr')
- additional binaries with standard Unix names (mount.xtreemfs,
mkfs.xtreemfs, lsfs.xtreemfs, rmfs.xtreemfs)
- experimental Hadoop file system driver for XtreemFS
- web-based admin console

We also fixed most of the bugs recorded in the tracker.

Most Linux binaries are available already. Binaries for Windows and Mac
OS will follow soon.

When upgrading your XtreemFS installation from 1.1 to 1.2, MRC and DIR
databases should be converted automatically, without the need for human
intervention. However, for safety reasons we suggest to create an XML
dump with the old release before updating; see "Updating" section in the
XtreemFS FAQs (http://www.xtreemfs.org/faq.php).

[Dennis McEntire]

One quick note when upgrading from 1.1 to 1.2:

I get an error trying to start the DIR service:

DIRRequestDispatcher | Main | OUTDATED DATABASE VERSION DETECTED! the
database was created with no -1, this DIR uses version 2009082718.
Please start an older version of the DIR or remove the old database.

So I guess I have to nuke all the files and data and start over?

Dennis

--

==============================
Dennis McEntire - gmail account
dmce...@gmail.com
==============================

[Minor Gordon]

Hi Dennis,

Dennis McEntire wrote:
> One quick note when upgrading from 1.1 to 1.2:
>
> I get an error trying to start the DIR service:
>
> DIRRequestDispatcher | Main | OUTDATED DATABASE VERSION DETECTED! the
> database was created with no -1, this DIR uses version 2009082718.
> Please start an older version of the DIR or remove the old database.
>
> So I guess I have to nuke all the files and data and start over?

It should suffice to delete the DIR database, usually in
/var/lib/xtreemfs/dir/database unless you've changed it in your
dirconfig.properties. The DIR database can be re-created at runtime so
it's not essential.

Minor