GoldenGate的官方文档明确表示,GoldenGate需要将MySQL的日志格式(binlog_format)设置为ROW,其他两种格式(MIXED or STATEMENT)是不支持。
########################################################################官方描述如下:
binlog_format: This parameter sets the format of the logs. It must be set to the value of ROW, which directs the database to log DML statements in binary format. Any other log format (MIXED or STATEMENT) causes Extract to abend.
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但是MySQL在版本5.1.5之前是不支持ROW和MIXED格式(MySQL 5.1.5引入ROW,5.1.8引入MIXED)
#### 官方描述如下:http://dev.mysql.com/doc/refman/5.1/en/binary-log-formats.html
Support for row-based logging was added in MySQL 5.1.5. Mixed logging is available beginning with MySQL 5.1.8. In MySQL 5.1.12, MIXED become the default logging mode; in 5.1.29, the default was changed back to STATEMENT for compatibility with MySQL 5.0.
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目前客户的MySQL版本是5.0.6-beta版:
D:\MySQL Server 5.0\bin>mysql -u root -p
Enter password: *****
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 111 to server version: 5.0.6-beta-nt-log
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> select version();
+-------------------+
| version() |
+-------------------+
| 5.0.6-beta-nt-log|
+-------------------+
1 row in set (0.02 sec)
这个版本是不支持binlog_format=ROW,所以安装好GolenGate后,启动抽取进程时,进程abend
########################################################################下面是出错信息:
2014-09-16 16:55:16 ERROR OGG-00146 VAM function VAMRead returned unexpected result: error 600 - VAM Client Report <CAUSE OF FAILURE : STATEMENT or MIXED level logging found so abending
WHEN FAILED : While reading log event from binary log
WHERE FAILED : MySQLBinLog Reader Module
CONTEXT OF FAILURE : No Information Available!>
因此如果想要采用GoldenGate来实现MySQL的数据实时同步,需要将MySQL版本升级到5.1.5以上。