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58 集团拥有大量需要长期保留的数据,但 MySQL 的单机存储容量有限,扩容不便。在数据量特别大的情况下,只能采用分库分表。MySQL 的高可用方案是主从复制+ MHA,当主库挂掉时,需要切换主从,势必影响一定时间的写入。此外,MySQL 读延时比较高,读流量增加会进一步带来高延迟。
5
iDB+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
INBO+80#80##4.0.24.00.94.0.104.011#5.0.0#5.0##58#TEG+
58B+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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延展视频：58 同城 HTAP 之路
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58#58#58#58#58##MySQL.Redis/MongoDB.ES.TiDB#58
