Upgrading OS version, architecture and MySQL version

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jayjayecl

Hello,

We have Alfresco 3.1.1E running on a RHEL4 (32b), MySQL 5.0.25 architecture.
We found out that we are not in a supported stack configuration.
Then, we intend to migrate our Alfresco platform to a RHEL5 (64b) and MySQL 5.1.

Has anyone ever done that ? Are there some hints / tips that have to be known to run this procedure ?
Will the 32b contentStore (alf_data) be compatible with a 64b architecture ?
What about the Lucene index files ?

Thank you

pmonks

There are unlikely to be any issues with the content store, as that contains the unmodified file content (which is the same regardless of the CPU and memory architecture - 32 bit vs 64 bit).  The MySQL upgrade is where I would be most cautious - perhaps backing up the current 5.0.25 database, restoring into a 5.0.25 database on the 64 bit RHEL5 box, then upgrading MySQL to 5.1.x.  I'm also not sure of the implications of moving from 32bit MySQL to 64bit MySQL - the MySQL documentation, forums etc. should be consulted for that information.

In general, taking a larger number of smaller, incremental steps is preferable to executing a single "big bang" step, as it's more efficient in the case where something goes awry somewhere along the line, and migrations / upgrades such as this one are no exception to that rule.

Cheers,
Peter