Nortel Call Center Server Installation And Maintenance Manual page 1289

July 2007
Stopping replication automatically
The Symposium database contains a mechanism to disable replication
automatically if the Replication Agent on the Active Server database is unable to
connect to the Replication Server for a prolonged period, for example, due to a
network failure or a failure of the Replication Server. This mechanism prevents
the database transaction log from filling up beyond a critical level.
Replication will be disabled automatically from the Active Symposium server if
it detects that the database transaction log is more than 70 percent full.
The Active Server issues the following alarms when the transaction log fills up
and when the system automatically disables replication.
51175 (MAJOR): Transaction log for the blue/cbc database is x% full.
51176 (CRITICAL): Transaction log for the blue/cbc database is x% full.
51177 (CRITICAL): Replication has stopped for the blue/cbc database.
51178 (CRITICAL): Failed to disable Replication for the blue/cbc database
(Error code x).
The system issues the first alarm when the transaction log is 30% full. The
system then issues alarms at intervals of 10% if the transaction log continues to
fill up. The system then disables replication when the transaction log is over
70% full.
To resume replication after the system disables replication automatically, you
must remove the Warm Standby configuration from the Replication Server and
then create the Warm Standby configuration again. To do this, follow the
procedure "To configure the Replication Server" on page 1257.
Adding Stable Queue partitions
The Replication Server uses Stable Queues to store transactions before the
transactions are executed in the Standby Server database. Stable Queues are
system files that reside on one or more disk partitions. The Replication Server is
configured with a single partition of up to 2040 Mbyte for the Stable Queues.
Partition space is allocated and released in 1-Mbyte segments. If the Replication
Server runs out of Stable Queue space, the Active Server cannot send
transactions to the Replication Server.
Installation and Maintenance Guide for Windows 2003
Using Symposium Standby Server
1289