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Clickhouse sink stream request to clickhouse instead of buffering in memory #80

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ecyshor opened this issue Dec 18, 2018 · 0 comments
Open

Clickhouse sink stream request to clickhouse instead of buffering in memory #80

ecyshor opened this issue Dec 18, 2018 · 0 comments

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@ecyshor
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ecyshor commented Dec 18, 2018

Currently the ClickhouseSink uses groupWithin to buffer the items which need to be inserted into clickhouse. This causes a larger memory footprint and also bursts of data being sent to clickhouse.

We should basically rotate the stream to a different http sink whenever the batch size or batch timeout has been reached.
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