Carrying Case Owner's Manual

102 Oracle TimesTen In-Memory Database Installation Guide
the steps outlined in “Moving between 32-bit and 64-bit data stores” on
page 101.
If you need to upgrade two or more data stores that are replicating to
each other, you must perform a few extra steps in order to ensure that
replication will continue to operate during and after the upgrade. For
example, to migrate two replicating data stores,
master1 on host
machine
masterhost and subscriber1 on host machine
subscriberhost
, from TimesTen release 5.1 to TimesTen release 7.0,
perform the following steps:
1. Configure the replication scheme on both data stores to use static TCP/
IP ports for replication. This is necessary because the intermediate result
of these steps is that replication occurs between two different versions
of TimesTen, and each version will not necessarily know how to find the
main daemon of the other in order to have the replication ports assigned
dynamically. See "Dynamic vs. static port assignments" in the TimesTen
to TimesTen Replication Guide for more information.
2. On the machine
masterhost, use the 5.1 release’s ttAdmin utility to
stop the replication daemon on the data store:
ttAdmin -repStop master1
3. Next, use the 5.1 release’s ttMigrate utility with the -c option to back
up data store
master1 to a binary file:
ttMigrate -c DSN=master1 master1.bak
4. Use the 5.1 release’s ttDestroy utility to destroy data store master1,
where the data store’s files are located in the directory
data_store_path:
ttDestroy /data_store_path/master1
5. Use the 7.0 release’s ttMigrate utility with the -r option to restore data
store
master1 from the binary file. Restoring the data store
automatically upgrades it from release 5.1 to release 7.0. If you are
restoring a very large data store, you should use the
-C option to tell
ttMigrate to perform a checkpoint operation on the data store
periodically. This saves time if the restore fails at some point before the
operation has been completed. For more information, see "Checkpoints"
in the Oracle TimesTen In-Memory Database Operations Guide.
ttMigrate -r -C 20 DSN=master1 master1.bak
6. Use the 7.0 release’s ttAdmin utility to start the replication daemon:
ttAdmin -repStart master1
Replication is now occurring between the data store master1 on release
7.0 and the data store
subscriber1 on release 5.1.