{"action":"opened","issue":{"url":"https://api.github.com/repos/scylladb/scylla/issues/3660","repository_url":"https://api.github.com/repos/scylladb/scylla","labels_url":"https://api.github.com/repos/scylladb/scylla/issues/3660/labels{/name}","comments_url":"https://api.github.com/repos/scylladb/scylla/issues/3660/comments","events_url":"https://api.github.com/repos/scylladb/scylla/issues/3660/events","html_url":"https://github.com/scylladb/scylla/issues/3660","id":347704435,"node_id":"MDU6SXNzdWUzNDc3MDQ0MzU=","number":3660,"title":"scylla_setup: iotune output to screen is confusing","user":{"login":"tzach","id":170200,"node_id":"MDQ6VXNlcjE3MDIwMA==","avatar_url":"https://avatars1.githubusercontent.com/u/170200?v=4","gravatar_id":"","url":"https://api.github.com/users/tzach","html_url":"https://github.com/tzach","followers_url":"https://api.github.com/users/tzach/followers","following_url":"https://api.github.com/users/tzach/following{/other_user}","gists_url":"https://api.github.com/users/tzach/gists{/gist_id}","starred_url":"https://api.github.com/users/tzach/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tzach/subscriptions","organizations_url":"https://api.github.com/users/tzach/orgs","repos_url":"https://api.github.com/users/tzach/repos","events_url":"https://api.github.com/users/tzach/events{/privacy}","received_events_url":"https://api.github.com/users/tzach/received_events","type":"User","site_admin":false},"labels":[{"id":352004870,"node_id":"MDU6TGFiZWwzNTIwMDQ4NzA=","url":"https://api.github.com/repos/scylladb/scylla/labels/UX","name":"UX","color":"006b75","default":false},{"id":351996785,"node_id":"MDU6TGFiZWwzNTE5OTY3ODU=","url":"https://api.github.com/repos/scylladb/scylla/labels/onboarding","name":"onboarding","color":"f9d0c4","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-08-05T14:50:18Z","updated_at":"2018-08-05T14:50:18Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"*Installation details*\r\nScylla version (or git commit hash): 2.3-rc1\r\nCluster size: 1\r\nOS (RHEL/CentOS/Ubuntu/AWS AMI): Centos On AWS i3.4xlarge\r\n\r\nOutput to the screen include: `Recommended --num-io-queues: 3` \r\nIts not clear to the user if he needs to use this value to do something\r\n\r\nA better UX will be something like\r\n```\r\nWrite results to /etc/scylla.d/io.conf\r\n```\r\n\r\nor\r\n```\r\nio.conf updated with recommended --num-io-queues: 3\r\n```\r\n\r\nFull current output\r\n```\r\nDo you want iotune to study your disks IO profile and adapt Scylla to it?\r\nYes - let iotune study my disk(s). Note that this action will take a few minutes. No - skip this step.\r\n[YES/no]\r\ntuning /sys/devices/pci0000:00/0000:00:1e.0/nvme/nvme0/nvme0n1\r\ntuning: /sys/devices/pci0000:00/0000:00:1e.0/nvme/nvme0/nvme0n1/queue/nomerges 2\r\nINFO  2018-08-05 14:39:09,791 [shard 0] iotune - /var/lib/scylla/data passed sanity checks\r\nMeasuring sequential write bandwidth: 387 MB/s\r\nMeasuring sequential read bandwidth: 1061 MB/s\r\nMeasuring random write IOPS: 51530 IOPS\r\nMeasuring random read IOPS: 218019 IOPS\r\nRecommended --num-io-queues: 3\r\n```"}}
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