I've write a blog about Host Server Log configuration and tuning. You can read in below link
https://medium.com/k2-dev-en/all-about-k2-host-server-log-part-i-9e1f641ba1d2
https://medium.com/k2-dev-en/all-about-k2-host-server-log-part-ii-4736d6ece470
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