Specifies the size of the replication log buffers in bytes. 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 Derby 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 Java DB Server and Administration Guide).
8192 (8 KB).
The maximum value is 1048576 (1 MB).
32768 bytes (32KB).
This property is static; if you change it while Derby is running, the change does not take effect until you reboot.