{"action":"created","issue":{"url":"https://api.github.com/repos/yahoo/kafka-manager/issues/160","labels_url":"https://api.github.com/repos/yahoo/kafka-manager/issues/160/labels{/name}","comments_url":"https://api.github.com/repos/yahoo/kafka-manager/issues/160/comments","events_url":"https://api.github.com/repos/yahoo/kafka-manager/issues/160/events","html_url":"https://github.com/yahoo/kafka-manager/issues/160","id":118154287,"number":160,"title":"Significant slowdown between 1.2.7–1.2.9.10","user":{"login":"patricklucas","id":95053,"avatar_url":"https://avatars.githubusercontent.com/u/95053?v=3","gravatar_id":"","url":"https://api.github.com/users/patricklucas","html_url":"https://github.com/patricklucas","followers_url":"https://api.github.com/users/patricklucas/followers","following_url":"https://api.github.com/users/patricklucas/following{/other_user}","gists_url":"https://api.github.com/users/patricklucas/gists{/gist_id}","starred_url":"https://api.github.com/users/patricklucas/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/patricklucas/subscriptions","organizations_url":"https://api.github.com/users/patricklucas/orgs","repos_url":"https://api.github.com/users/patricklucas/repos","events_url":"https://api.github.com/users/patricklucas/events{/privacy}","received_events_url":"https://api.github.com/users/patricklucas/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-11-21T00:15:40Z","updated_at":"2015-11-24T21:59:29Z","closed_at":null,"body":"I recently tried to upgrade from 1.2.7 to 1.2.9.10, but unfortunately the latest version is unusable and all useful operations on a cluster with a significant number of topics all result in this error now:\r\n\r\n```\r\nYikes! Ask timed out on [ActorSelection[Anchor(akka://kafka-manager-system/), Path(/user/kafka-manager/<cluster>/kafka-state)]] after [2000 ms]\r\n```\r\n\r\nI tried switching back and forth a number of times, and the issue reproduces reliably.\r\n\r\nkafka-manager still works on my smaller clusters, with topic counts in the low hundreds. But any cluster with a few hundred to a few thousand topics time out on 100% of requests.\r\n\r\nThe only solution currently appears to be to stay on 1.2.7, but you might want to put a bit of focus on performance to ensure this great tool remains useful for production workloads."},"comment":{"url":"https://api.github.com/repos/yahoo/kafka-manager/issues/comments/159417776","html_url":"https://github.com/yahoo/kafka-manager/issues/160#issuecomment-159417776","issue_url":"https://api.github.com/repos/yahoo/kafka-manager/issues/160","id":159417776,"user":{"login":"patricklucas","id":95053,"avatar_url":"https://avatars.githubusercontent.com/u/95053?v=3","gravatar_id":"","url":"https://api.github.com/users/patricklucas","html_url":"https://github.com/patricklucas","followers_url":"https://api.github.com/users/patricklucas/followers","following_url":"https://api.github.com/users/patricklucas/following{/other_user}","gists_url":"https://api.github.com/users/patricklucas/gists{/gist_id}","starred_url":"https://api.github.com/users/patricklucas/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/patricklucas/subscriptions","organizations_url":"https://api.github.com/users/patricklucas/orgs","repos_url":"https://api.github.com/users/patricklucas/repos","events_url":"https://api.github.com/users/patricklucas/events{/privacy}","received_events_url":"https://api.github.com/users/patricklucas/received_events","type":"User","site_admin":false},"created_at":"2015-11-24T21:59:29Z","updated_at":"2015-11-24T21:59:29Z","body":"The configuration option for that claims \"Not recommended for large # of consumers\", which we do. What's the impact? Just more ZK watchers?"}}