{"action":"created","issue":{"url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/715","repository_url":"https://api.github.com/repos/brettwooldridge/HikariCP","labels_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/715/labels{/name}","comments_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/715/comments","events_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/715/events","html_url":"https://github.com/brettwooldridge/HikariCP/issues/715","id":176143908,"number":715,"title":"connection pool w/ jvm dns cache ","user":{"login":"djerraballi","id":2452655,"avatar_url":"https://avatars.githubusercontent.com/u/2452655?v=3","gravatar_id":"","url":"https://api.github.com/users/djerraballi","html_url":"https://github.com/djerraballi","followers_url":"https://api.github.com/users/djerraballi/followers","following_url":"https://api.github.com/users/djerraballi/following{/other_user}","gists_url":"https://api.github.com/users/djerraballi/gists{/gist_id}","starred_url":"https://api.github.com/users/djerraballi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/djerraballi/subscriptions","organizations_url":"https://api.github.com/users/djerraballi/orgs","repos_url":"https://api.github.com/users/djerraballi/repos","events_url":"https://api.github.com/users/djerraballi/events{/privacy}","received_events_url":"https://api.github.com/users/djerraballi/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-09-10T00:48:38Z","updated_at":"2016-09-12T09:05:20Z","closed_at":"2016-09-12T09:05:20Z","body":"We use a proximity / round-robin dns for our database servers. \r\n\r\nIf our application servers have a 10s DNS cache, and each server has a pool w/ a jdbc url to our dns. Is it possible that the pool could fill up w/ connections to a single DB server? I know that there is some delay between when the pool harvests and enters a new connection, but is it at a greater interval than the 10s dns cache? \r\n\r\nJust a question as i am wondering whether we should be dropping the dns cache ttl to avoid a homogenous pool. "},"comment":{"url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/comments/246289577","html_url":"https://github.com/brettwooldridge/HikariCP/issues/715#issuecomment-246289577","issue_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/715","id":246289577,"user":{"login":"brettwooldridge","id":1538661,"avatar_url":"https://avatars.githubusercontent.com/u/1538661?v=3","gravatar_id":"","url":"https://api.github.com/users/brettwooldridge","html_url":"https://github.com/brettwooldridge","followers_url":"https://api.github.com/users/brettwooldridge/followers","following_url":"https://api.github.com/users/brettwooldridge/following{/other_user}","gists_url":"https://api.github.com/users/brettwooldridge/gists{/gist_id}","starred_url":"https://api.github.com/users/brettwooldridge/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/brettwooldridge/subscriptions","organizations_url":"https://api.github.com/users/brettwooldridge/orgs","repos_url":"https://api.github.com/users/brettwooldridge/repos","events_url":"https://api.github.com/users/brettwooldridge/events{/privacy}","received_events_url":"https://api.github.com/users/brettwooldridge/received_events","type":"User","site_admin":false},"created_at":"2016-09-12T09:05:20Z","updated_at":"2016-09-12T09:05:20Z","body":"That would depend how frequently other components resolve hosts.  In HikariCP 's case, resolution is infrequent, but you would want to ensure that other libraries aren't affected."}}
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