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Updated FAQ (markdown)

agapple
2018-07-31 17:42:27 +08:00
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FAQ.md

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3. 检查下CanalConnector是否调用subscribe(filter)方法；有的话，filter需要和instance.properties的canal.instance.filter.regex一致，否则subscribe的filter会覆盖instance的配置，如果subscribe的filter是.\*\\..\*，那么相当于你消费了所有的更新数据 <span data-type="color" style="color:#F5222D">【特别注意】</span>
4. 检查一下[历史的issue列表](https://github.com/alibaba/canal/issues?utf8=%E2%9C%93&q=subscribe)，很有可能你的提问别人已经遇到过并解决了，比如表达式不对，特别是双斜杠的问题
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问3：canal是否支持aliyun rds的binlog订阅？
答： 参考issue：[https://github.com/alibaba/canal/issues/727](https://github.com/alibaba/canal/issues/727)
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问4：canal的整体性能怎么样？
答：
* 参考issue: [https://github.com/alibaba/canal/issues/726](https://github.com/alibaba/canal/issues/726)
* 参考性能测试文档：[https://github.com/alibaba/canal/wiki/Performance](https://github.com/alibaba/canal/wiki/Performance)