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[gfarm-announce:102296] Gfarm version 2.5.1 released

Hi all,

We are pleased to announce the release of

 * Gfarm file system version 2.5.1,
 * Gfarm2fs version 1.2.4.


This release includes bug fixes of master-slave synchronous and
asynchronous replicated metadata servers.  We recommend to upgrade to
this version.

Release note for Gfarm 2.5.1


New configuration directive
* metadb_server_force_slave to execute the old master metadata server
  as a slave server without restoring the backend database.  This
  directive is used when re-joining the master metadata server as a
  slave server. [sf.net trac #240]
* metadb_journal_recvq_size to specify the size of journal receive
  queue.  The default is changed from 1,000 to 100,000.

Updated feature
* gfmdhost - introduce new status characters: 'x' means the slave
  metadata server is too old to synchronize. 'e' means an error
  happens when connecting to the master metadata server.
* gfdump.postgresql - dump and restore between PostgreSQL
  installation with different admin account
* gfstat - -M option to show the corresponding metadata server

Bug fix
* fix segfault when removing and adding metadata servers
* gfmdhost incorrectly reports slave server status
* gfmd cannot be executed on FreeBSD 8.1 reported by
* fix race condition about mdhost hash table and journal file
* fix lost wake-up bug among reader and writer threads for the journal
  file [sf.net trac #239]

Release note for Gfarm2fs 1.2.4


Updated feature
* -o genuine_nlink to use struct stat:st_nlink from gfmd

Bug fix
* fix compilation errors on MacOS X 10.7 Lion

Osamu Tatebe
Department of Computer Science, University of Tsukuba
1-1-1 Tennodai, Tsukuba, Ibaraki 3058577 Japan