{"action":"created","issue":{"url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/559","labels_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/559/labels{/name}","comments_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/559/comments","events_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/559/events","html_url":"https://github.com/brettwooldridge/HikariCP/issues/559","id":128894547,"number":559,"title":"URGENT: Unusual system clock change detected, soft-evicting connections from pool.","user":{"login":"victropolis","id":359170,"avatar_url":"https://avatars.githubusercontent.com/u/359170?v=3","gravatar_id":"","url":"https://api.github.com/users/victropolis","html_url":"https://github.com/victropolis","followers_url":"https://api.github.com/users/victropolis/followers","following_url":"https://api.github.com/users/victropolis/following{/other_user}","gists_url":"https://api.github.com/users/victropolis/gists{/gist_id}","starred_url":"https://api.github.com/users/victropolis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/victropolis/subscriptions","organizations_url":"https://api.github.com/users/victropolis/orgs","repos_url":"https://api.github.com/users/victropolis/repos","events_url":"https://api.github.com/users/victropolis/events{/privacy}","received_events_url":"https://api.github.com/users/victropolis/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2016-01-26T17:59:43Z","updated_at":"2016-01-26T22:19:47Z","closed_at":null,"body":"Brett,\r\n\r\nI saw a ton of connections from a particular host last night...\r\n\r\n```\r\ndgcs=# select distinct usename, application_name, client_addr, count(*) from pg_stat_activity where client_addr = '10.101.152.33' group by  usename, application_name, client_addr order by client_addr, usename;\r\n     usename      | application_name |  client_addr  | count \r\n------------------+------------------+---------------+-------\r\n analytics_rw     |                  | 10.101.152.33 |   289\r\n catalog_rw       |                  | 10.101.152.33 |   192\r\n dgwatch_rw       |                  | 10.101.152.33 |    40\r\n member_rw        |                  | 10.101.152.33 |   508\r\n wps_processor_rw |                  | 10.101.152.33 |   200\r\n(5 rows)\r\n```\r\n\r\nThis morning, come to find the following in the log files every hour or so...\r\n\r\n```\r\n2016-01-25 21:09:15,498 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 1-MemberConnectionPool)] [pool.HikariPool] - 1-MemberConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n2016-01-25 21:09:17,948 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 2-AnalyticsConnectionPool)] [pool.HikariPool] - 2-AnalyticsConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n2016-01-25 22:09:44,837 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 1-MemberConnectionPool)] [pool.HikariPool] - 1-MemberConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n2016-01-25 22:09:47,267 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 2-AnalyticsConnectionPool)] [pool.HikariPool] - 2-AnalyticsConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n2016-01-25 23:10:45,845 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 1-MemberConnectionPool)] [pool.HikariPool] - 1-MemberConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n2016-01-25 23:10:48,285 WARN  [a3808e51-ff45-4d72-b5de-7efdd973ec27] [Hikari housekeeper (pool 2-AnalyticsConnectionPool)] [pool.HikariPool] - 2-AnalyticsConnectionPool - Unusual system clock change detected, soft-evicting connections from pool.\r\n```\r\n\r\nThese are my configs:\r\n\r\n```\r\n<maxLifetime>1800000</maxLifetime>\r\n<idleTimeout>600000</idleTimeout>\r\n<mininumPoolSize>5</mininumPoolSize>\r\n<maximumPoolSize>100</maximumPoolSize>\r\n<connectionTimeout>30000</connectionTimeout>\r\n<validationTimeout>5000</validationTimeout>\r\n```\r\n\r\nWhat is causing this?  And, what exactly is soft-evicting?  Does that fail to close the original connections?\r\n\r\nThanks!"},"comment":{"url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/comments/175261993","html_url":"https://github.com/brettwooldridge/HikariCP/issues/559#issuecomment-175261993","issue_url":"https://api.github.com/repos/brettwooldridge/HikariCP/issues/559","id":175261993,"user":{"login":"victropolis","id":359170,"avatar_url":"https://avatars.githubusercontent.com/u/359170?v=3","gravatar_id":"","url":"https://api.github.com/users/victropolis","html_url":"https://github.com/victropolis","followers_url":"https://api.github.com/users/victropolis/followers","following_url":"https://api.github.com/users/victropolis/following{/other_user}","gists_url":"https://api.github.com/users/victropolis/gists{/gist_id}","starred_url":"https://api.github.com/users/victropolis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/victropolis/subscriptions","organizations_url":"https://api.github.com/users/victropolis/orgs","repos_url":"https://api.github.com/users/victropolis/repos","events_url":"https://api.github.com/users/victropolis/events{/privacy}","received_events_url":"https://api.github.com/users/victropolis/received_events","type":"User","site_admin":false},"created_at":"2016-01-26T22:19:47Z","updated_at":"2016-01-26T22:19:47Z","body":"Also, the machine was just sitting idle all night.  Nothing going on on it."}}