{"action":"created","comment":{"url":"https://api.github.com/repos/akka/akka/pulls/comments/36728014","id":36728014,"diff_hunk":"@@ -657,10 +658,26 @@ private[cluster] class ClusterCoreDaemon(publisher: ActorRef) extends Actor with\n           (remoteGossip, !remoteGossip.seenByNode(selfUniqueAddress), Newer)\n         case _ ⇒\n           // conflicting versions, merge\n-          (remoteGossip merge localGossip, true, Merge)\n+          val prunedLocalGossip = localGossip.members.foldLeft(localGossip) { (g, m) ⇒","path":"akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala","position":13,"original_position":13,"commit_id":"d71096af8dd508fea2df1f5eb0133f8ac21850ab","original_commit_id":"d71096af8dd508fea2df1f5eb0133f8ac21850ab","user":{"login":"drewhk","id":932285,"avatar_url":"https://avatars.githubusercontent.com/u/932285?v=3","gravatar_id":"","url":"https://api.github.com/users/drewhk","html_url":"https://github.com/drewhk","followers_url":"https://api.github.com/users/drewhk/followers","following_url":"https://api.github.com/users/drewhk/following{/other_user}","gists_url":"https://api.github.com/users/drewhk/gists{/gist_id}","starred_url":"https://api.github.com/users/drewhk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/drewhk/subscriptions","organizations_url":"https://api.github.com/users/drewhk/orgs","repos_url":"https://api.github.com/users/drewhk/repos","events_url":"https://api.github.com/users/drewhk/events{/privacy}","received_events_url":"https://api.github.com/users/drewhk/received_events","type":"User","site_admin":false},"body":"My current understanding is that these prunings (on local and remote) will remove any entry m where\r\n - the entry is removeUnreachableWithMemberStatus (i.e. is of a status that is removable?)\r\n - and it is not contained by the other gossip\r\n\r\nNow, trying to figure out what happens in various scenarios. Suppose all entries I talk about have removeUnreachableWithMemberStatus true (maybe this is wrong to assume, correct me if wrong)\r\n\r\n*Scenario 1*: M is contained in both gossips. In this case it will stay in both pruned versions, and as a result in the merged version\r\n\r\n*Scenario 2*: M is contained in only one gossip (lets name it G1, and G2 is the other gossip).\r\n - G1_pruned will not contain M since G2 does not contain it\r\n - G2_pruned will contain M since G1 does contain it\r\n - G1_G2_merged will contain M? How does this work here?\r\n","created_at":"2015-08-11T09:46:58Z","updated_at":"2015-08-11T09:46:58Z","html_url":"https://github.com/akka/akka/pull/17624#discussion_r36728014","pull_request_url":"https://api.github.com/repos/akka/akka/pulls/17624","_links":{"self":{"href":"https://api.github.com/repos/akka/akka/pulls/comments/36728014"},"html":{"href":"https://github.com/akka/akka/pull/17624#discussion_r36728014"},"pull_request":{"href":"https://api.github.com/repos/akka/akka/pulls/17624"}}},"pull_request":{"url":"https://api.github.com/repos/akka/akka/pulls/17624","id":36604434,"html_url":"https://github.com/akka/akka/pull/17624","diff_url":"https://github.com/akka/akka/pull/17624.diff","patch_url":"https://github.com/akka/akka/pull/17624.patch","issue_url":"https://api.github.com/repos/akka/akka/issues/17624","number":17624,"state":"open","locked":false,"title":"=clu #13226 Prune vector clocks from removed 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