derby.replication.logBufferSize The derby.replication.logBufferSize property specifies the size of the replication log buffers in bytes. derby.replication.logBufferSize property replicationspecifying log buffer size

These buffers store the log on the master side before it is shipped to the slave. There is a total of 10 such buffers.

Large buffers increase memory usage but reduce the chance that the buffers will fill up (in turn increasing response time for transactions on the master, as described in the failure situation "The master instance is not able to send log data to the slave at the same pace as the log is generated" in the topic "Replication failure handling" in the ).

You can also use the properties and to tune the rate at which the log is shipped from the master to the slave.

Minimum value

8192 (8 KB).

Maximum value

The maximum value is 1048576 (1 MB).

Default

32768 bytes (32KB).

Example derby.replication.logBufferSize=65536
Scope

system-wide

Dynamic or static

This property is static; if you change it while is running, the change does not take effect until you reboot.