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    latency on ceph ssd

    Hi, i'm trying to lower write latency on ceph ssd without success. env: small prod site, v 7.1.10.3 pc, 1Gpbs. 13 ceph entry ssd with different sizes, from 200GB do 1TB, older ones. 10 vm linux, not IO demanding. I had similar problem with elastic and hdd, default options was to many threads...
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    install ELK on debian, below KVM and LXC ?

    is it possible to install Elasticsearch (or ELK) directly on debian (not KVM or LXC) for perf reason ? That combination would be perfect for us, elk on HW, then lot of services in vm-s and containers.