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ELOQUENCE B.07.10 - patch XE71-060901

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This patch is intended for testing purposes and adds the option 
to Eloquence B.07.10 to replicate database transactions to other 
database environments. 

Severity:
 XE71-060901: BETA TEST

Superseded patches:
 XE71-060626: BETA TEST
 XE71-060623: BETA TEST
 XE71-060522: BETA TEST
 XE71-060418: BETA TEST


Patch XE71-060901
-----------------

* On-line backup on the replication slave is now functional.

* An option -G was added to the dbrepl utility.

* Using the slave server volume files to recover the master server 
  is now supported.

* An option -M was added to the dblogreset utility (currently
  undocumented).

* A new dbctl replication status command was added.

* After using the dbrecover utility, the internal volume generation
  is now correctly incremented the next time the eloqdb6 is started
  or the dblogreset command is used.

* Fixed a problem on the slave server that could abort with an
  internal failure message as below on shutdown if the previous 
  replication was incomplete:
  
   bf_link_cluster() f_bhp->id.node_id=#3:SLP, node_id=#2:SLP, page_id=0x1000007, npages=1
   server panic: Fatal problem detected in bf_link_cluster
   Assertion failed: f_bhp->id.node_id == node_id
   server panic: Aborting on internal failure, file mpool.c, line 456

* A problem was solved that could cause an inconsistency of the 
  internal volume generation between data and log volumes (#3129). 
  This could result in an error during eloqdb6 startup like below:

   failed to open volume: volume #1 has inconsistent generation count

  This could happen under a rare condition when forward-logging was
  configured but disabled and afterwards the eloqdb6 process was 
  terminated unexpectedly two times in a row. In this case, the log 
  volume header was not updated and therefore contained a wrong volume 
  generation.

For additional information, please refer to the documentation
(also installed as /opt/eloquence6/share/doc/REPL.README).


Patch XE71-060626
-----------------

* Fixed problem with slave server forward log files. In some
  cases the slave server forward log file could contain repeated
  data.

* Re-starting the recovery was improved.  The previous version
  caused the slave server to re-read the most recent fw-log file 
  segment to synchronize. This is no longer necessary.

* The dbrepl utility was modified to remove a repeated warning
  message.


Patch XE71-060623
-----------------

* Support for forward log files was added to the slave server.

* Fixed a potential buffer overflow when redirecting a writing
  dbopen from a slave server.

* Fixed a compatibility problem with older forward log files.

* Fixed a problem with cached meta information on slave server
  possibly not updated.


Patch XE71-060522
-----------------

* Fixed a bug where a dbrestore would corrupt the configuration

* Fix bug with dbopen mode 4 on slave not bounced to master 

* Changed btree logging format to improve incremental updates 
  in some corner cases

* Added initial support for detecting conflicting database use 
  on the slave server. The access requirements for replication
  is recorded by the master server and applied by the replication
  process.
  
  The following conditions are currently recognized:
  
  - The replication requesting exclusive access to a database (eg.
    erasing a database or an application on the master requested
    exclusive access to the database)

  - An application opening a database on the slave server in 
    mode 8 (deny concurrent write)

  If a database is currently in use by an application, the 
  replication is temporarily suspended until the database is 
  available.
  
  If a database is currently accessed by the replication an
  attempt by an application to open the database in a conflicting
  mode will fail with a database status.


Patch XE71-060418
-----------------

* This patch adds the option to Eloquence B.07.10 to replicate
  database transactions to other database environments.  It is
  only intended for testing purposes.
  

Installation:
-------------

Please download the patch archive that corresponds with the installed
release.  The patch files follow the conventions below:

   XE71-060901-hpux-ia64.tar.gz
        ^      ^    ^
        |      |    Architecture / OS specific build
        |      Operating system
        Patch ID


HP-UX:

In order to install this patch, you need to unpack it with gzip and tar.
Gzip is included with HP-UX. Installation requires root privileges.

cd /opt/eloquence6
gzip -dc /path/to/XE71-060901-hpux-pa20.tar.gz | tar xf -

Files:

   bin/eloqdb6
   bin/dbrepl
   bin/dblogreset
   bin/dbrecover
   bin/dbvoldump
   bin/fwaudit
   share/doc/REPL.README


Linux:

In order to install this patch, you need to unpack it with tar.
Installation requires root privileges.

cd /opt/eloquence6
tar xzf /path/to/XE71-060901-linux-*.tar.gz

Files:

   bin/eloqdb6
   bin/dbrepl
   bin/dblogreset
   bin/dbrecover
   bin/dbvoldump
   bin/fwaudit
   share/doc/REPL.README