{"action":"created","issue":{"url":"https://api.github.com/repos/cockroachdb/cockroach/issues/19618","repository_url":"https://api.github.com/repos/cockroachdb/cockroach","labels_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/19618/labels{/name}","comments_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/19618/comments","events_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/19618/events","html_url":"https://github.com/cockroachdb/cockroach/pull/19618","id":269329729,"number":19618,"title":"cli: add \"debug synctest\" command","user":{"login":"petermattis","id":6201335,"avatar_url":"https://avatars0.githubusercontent.com/u/6201335?v=4","gravatar_id":"","url":"https://api.github.com/users/petermattis","html_url":"https://github.com/petermattis","followers_url":"https://api.github.com/users/petermattis/followers","following_url":"https://api.github.com/users/petermattis/following{/other_user}","gists_url":"https://api.github.com/users/petermattis/gists{/gist_id}","starred_url":"https://api.github.com/users/petermattis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/petermattis/subscriptions","organizations_url":"https://api.github.com/users/petermattis/orgs","repos_url":"https://api.github.com/users/petermattis/repos","events_url":"https://api.github.com/users/petermattis/events{/privacy}","received_events_url":"https://api.github.com/users/petermattis/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2017-10-28T16:15:36Z","updated_at":"2017-10-28T19:44:28Z","closed_at":null,"author_association":"CONTRIBUTOR","pull_request":{"url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/19618","html_url":"https://github.com/cockroachdb/cockroach/pull/19618","diff_url":"https://github.com/cockroachdb/cockroach/pull/19618.diff","patch_url":"https://github.com/cockroachdb/cockroach/pull/19618.patch"},"body":"Expose the RocksDB LogData functionality which allows adding data to the\nRocksDB WAL which is uninterpreted by RocksDB (i.e. not added to the\nmemtable or sstables). This is used by \"debug synctest\" to isolate\nperformance of appending to the WAL vs appending to the WAL and\ninserting into the memtable."},"comment":{"url":"https://api.github.com/repos/cockroachdb/cockroach/issues/comments/340215171","html_url":"https://github.com/cockroachdb/cockroach/pull/19618#issuecomment-340215171","issue_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/19618","id":340215171,"user":{"login":"petermattis","id":6201335,"avatar_url":"https://avatars0.githubusercontent.com/u/6201335?v=4","gravatar_id":"","url":"https://api.github.com/users/petermattis","html_url":"https://github.com/petermattis","followers_url":"https://api.github.com/users/petermattis/followers","following_url":"https://api.github.com/users/petermattis/following{/other_user}","gists_url":"https://api.github.com/users/petermattis/gists{/gist_id}","starred_url":"https://api.github.com/users/petermattis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/petermattis/subscriptions","organizations_url":"https://api.github.com/users/petermattis/orgs","repos_url":"https://api.github.com/users/petermattis/repos","events_url":"https://api.github.com/users/petermattis/events{/privacy}","received_events_url":"https://api.github.com/users/petermattis/received_events","type":"User","site_admin":false},"created_at":"2017-10-28T19:44:28Z","updated_at":"2017-10-28T19:44:28Z","author_association":"CONTRIBUTOR","body":"Figured out how to configure an IO scheduler on the GCE VM:\r\n* Use the `ubuntu-1710-artful-v20171017` image\r\n* `sudo apt-get install linux-image-extra-4.13.0-16-generic`\r\n* `sudo modprobe {mq-deadline,kyber-iosched}`\r\n* `echo mq-deadline | sudo tee /sys/block/sdb/queue/scheduler`\r\n\r\nNeither the `mq-deadline` or `kyber` schedulers made any difference."}}
{"actor":{"display_login":"petermattis"}}