{"action":"created","issue":{"url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/310","repository_url":"https://api.github.com/repos/BuoyantIO/linkerd","labels_url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/310/labels{/name}","comments_url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/310/comments","events_url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/310/events","html_url":"https://github.com/BuoyantIO/linkerd/issues/310","id":149307571,"number":310,"title":"Investigate switching from synchronized maps to ConcurrentHashMap","user":{"login":"adleong","id":3979810,"avatar_url":"https://avatars.githubusercontent.com/u/3979810?v=3","gravatar_id":"","url":"https://api.github.com/users/adleong","html_url":"https://github.com/adleong","followers_url":"https://api.github.com/users/adleong/followers","following_url":"https://api.github.com/users/adleong/following{/other_user}","gists_url":"https://api.github.com/users/adleong/gists{/gist_id}","starred_url":"https://api.github.com/users/adleong/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/adleong/subscriptions","organizations_url":"https://api.github.com/users/adleong/orgs","repos_url":"https://api.github.com/users/adleong/repos","events_url":"https://api.github.com/users/adleong/events{/privacy}","received_events_url":"https://api.github.com/users/adleong/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-04-19T00:11:58Z","updated_at":"2016-04-19T21:50:23Z","closed_at":null,"body":"Namerd has a number of hand-rolled synchronized maps.  Investigate replacing these with ConcurrentHashMap or something similar."},"comment":{"url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/comments/212143822","html_url":"https://github.com/BuoyantIO/linkerd/issues/310#issuecomment-212143822","issue_url":"https://api.github.com/repos/BuoyantIO/linkerd/issues/310","id":212143822,"user":{"login":"adleong","id":3979810,"avatar_url":"https://avatars.githubusercontent.com/u/3979810?v=3","gravatar_id":"","url":"https://api.github.com/users/adleong","html_url":"https://github.com/adleong","followers_url":"https://api.github.com/users/adleong/followers","following_url":"https://api.github.com/users/adleong/following{/other_user}","gists_url":"https://api.github.com/users/adleong/gists{/gist_id}","starred_url":"https://api.github.com/users/adleong/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/adleong/subscriptions","organizations_url":"https://api.github.com/users/adleong/orgs","repos_url":"https://api.github.com/users/adleong/repos","events_url":"https://api.github.com/users/adleong/events{/privacy}","received_events_url":"https://api.github.com/users/adleong/received_events","type":"User","site_admin":false},"created_at":"2016-04-19T21:50:23Z","updated_at":"2016-04-19T21:50:23Z","body":"Does anyone have opinions about using Guava cache for this?  Seems like a good fit since it's  thread-safe and also supports LRU semantics https://github.com/google/guava/wiki/CachesExplained"}}