Shard compactions happen based on internal algorithms and are neither
deterministic nor configurable. (WAL compaction is configurable, but that's
not the sawtooth you are seeing. That's TSM compactions.) For 1.0, they
happen when they happen and that's just how it is.

https://docs.influxdata.com/influxdb/v1.0/concepts/storage_engine/#compactions

On Thu, Sep 22, 2016 at 8:33 PM, Jason Park <paks...@gmail.com> wrote:

> Hi there,
>
> I'm testing for feasibility of influxdb performance.
>
> DB schema as following.
> Measurements : 100
> Series : 30M with one Tag and five fields.
>
> Traffic generation : 30K write points data per second with wrk2 HTTP load
> generation tool.
> Used influxdb default configuration but max cache memory was 50G.
> 32 Cores CPU, 512G physical memory, 2T SSD disk
>
> As you can see the attachment, InfluxDB shard size shows big saw teeth,
> looks like fully compaction every 7~8 hour.
> I hope that I can make it smaller it. *Is it configurable?*
>
> Actually it seems affect write and query blocking because InfluxDB perform
> any compaction after that Go routines is increased up to 20 times,
> at that time the 'PointReq' is 0 for long time up to 15 Min.
>
> Thank you in advance
>
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-- 
Sean Beckett
Director of Support and Professional Services
InfluxDB

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