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亿级表全量同步效率如何 #6

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warrenwx opened this issue Nov 27, 2020 · 2 comments
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亿级表全量同步效率如何 #6

warrenwx opened this issue Nov 27, 2020 · 2 comments

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@warrenwx
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@zxc111
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zxc111 commented Nov 27, 2020

@warrenwx 主要受限于 Clickhouse 资源(磁盘io)使用情况,例如白天高频使用时,插入性能差,整体耗时就会比较久,夜间都是离线任务,资源使用较少,插入相比白天会有几倍甚至几十倍的差距

@warrenwx
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谢谢回复,其实我更加关注从数据源拉取全量数据的效率,因为一般来说存量的数据都是巨大的。

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