2014.11.28 SQL2650N An invalid parameter "poLogBuffer"

Subscription cannot start and failed with the error below, in the source event log :

"SQL2650N An invalid parameter "poLogBuffer" was passed to the
"db2ReadLog" read log API. Reason Code = "8". ".

By default log_read_api_buffer_size_kb=200 , so If log records is bigger than 200k in DB2 transaction log then CDC Subscription fails with SQL2650N RC 8 error

CDC for DB2 LUW database on source

Issue DB2 ? SQL2650N command on DB2 Server installed machine to get more detail about the error

SQL2650N An invalid parameter "<parameter_name>" was passed to the
"<API-name>" read log API. Reason Code = "<reason-code>".

Explanation:

An invalid parameter was passed to a read log API. The possible reason
codes are as follows:

08

The buffer is not of sufficient size to store a log record.

User response:

Based on the reason code, follow the instructions given:

08

Increase the size of the allocated buffer.

Follow the steps :

- Increase the system paremeter log_read_api_buffer_size_kb value to higher in source DB2 LUW datastore. (4000 kb should be sufficient )

- bounce the source DB2 LUW instance

- restart the failing subscription.