{"action":"created","comment":{"url":"https://api.github.com/repos/CartoDB/cartodb/pulls/comments/56701903","id":56701903,"diff_hunk":"@@ -0,0 +1,47 @@\n+# encoding utf-8\n+\n+module Carto\n+  class Bolt\n+    DEFAULT_REDIS_OBJECT = $users_metadata\n+    DEFAULT_TTL_MS = 10000\n+\n+    def initialize(bolt_key, redis_object: DEFAULT_REDIS_OBJECT, ttl_ms: DEFAULT_TTL_MS)\n+      @bolt_key = add_namespace_to_key(bolt_key)\n+      @redis_object = redis_object\n+      @ttl_ms = ttl_ms\n+    end\n+\n+    def lock\n+      raise 'no block given' unless block_given?\n+\n+      is_locked = @redis_object.set(@bolt_key, true, px: @ttl_ms, nx: true)","path":"lib/carto/bolt.rb","position":17,"original_position":17,"commit_id":"78e2788dc8df4fcab2b90f5c889ea1524a2d9b44","original_commit_id":"78e2788dc8df4fcab2b90f5c889ea1524a2d9b44","user":{"login":"juanignaciosl","id":932968,"avatar_url":"https://avatars.githubusercontent.com/u/932968?v=3","gravatar_id":"","url":"https://api.github.com/users/juanignaciosl","html_url":"https://github.com/juanignaciosl","followers_url":"https://api.github.com/users/juanignaciosl/followers","following_url":"https://api.github.com/users/juanignaciosl/following{/other_user}","gists_url":"https://api.github.com/users/juanignaciosl/gists{/gist_id}","starred_url":"https://api.github.com/users/juanignaciosl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/juanignaciosl/subscriptions","organizations_url":"https://api.github.com/users/juanignaciosl/orgs","repos_url":"https://api.github.com/users/juanignaciosl/repos","events_url":"https://api.github.com/users/juanignaciosl/events{/privacy}","received_events_url":"https://api.github.com/users/juanignaciosl/received_events","type":"User","site_admin":false},"body":"7. Dashboard still displays the first table, isn't it?\r\n\r\nGreat :-)\r\n\r\nI guess that you didn't dig into the gem to check the problem then.","created_at":"2016-03-18T18:28:22Z","updated_at":"2016-03-18T18:28:22Z","html_url":"https://github.com/CartoDB/cartodb/pull/6883#discussion_r56701903","pull_request_url":"https://api.github.com/repos/CartoDB/cartodb/pulls/6883","_links":{"self":{"href":"https://api.github.com/repos/CartoDB/cartodb/pulls/comments/56701903"},"html":{"href":"https://github.com/CartoDB/cartodb/pull/6883#discussion_r56701903"},"pull_request":{"href":"https://api.github.com/repos/CartoDB/cartodb/pulls/6883"}}},"pull_request":{"url":"https://api.github.com/repos/CartoDB/cartodb/pulls/6883","id":62910630,"html_url":"https://github.com/CartoDB/cartodb/pull/6883","diff_url":"https://github.com/CartoDB/cartodb/pull/6883.diff","patch_url":"https://github.com/CartoDB/cartodb/pull/6883.patch","issue_url":"https://api.github.com/repos/CartoDB/cartodb/issues/6883","number":6883,"state":"open","locked":false,"title":"Concurrent ghost table management per user","user":{"login":"gfiorav","id":4222826,"avatar_url":"https://avatars.githubusercontent.com/u/4222826?v=3","gravatar_id":"","url":"https://api.github.com/users/gfiorav","html_url":"https://github.com/gfiorav","followers_url":"https://api.github.com/users/gfiorav/followers","following_url":"https://api.github.com/users/gfiorav/following{/other_user}","gists_url":"https://api.github.com/users/gfiorav/gists{/gist_id}","starred_url":"https://api.github.com/users/gfiorav/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gfiorav/subscriptions","organizations_url":"https://api.github.com/users/gfiorav/orgs","repos_url":"https://api.github.com/users/gfiorav/repos","events_url":"https://api.github.com/users/gfiorav/events{/privacy}","received_events_url":"https://api.github.com/users/gfiorav/received_events","type":"User","site_admin":false},"body":"Fixes #5580 #6133 #5581 \r\n\r\nThis PR adds a new `GhostTablesManager` that contains all the logic for ghost tables management. Along with a general refactor, it bring per user concurrency using a [redlock algorithm](http://redis.io/topics/distlock) (gem license will be added to licenses file). \r\n\r\nIt also provides a method to detect wether there are stale tables (tables linked by the editor whose sql tables have been deleted) that can cause errors when the user clicks on them. 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\r\n","created_at":"2016-03-15T14:07:46Z","updated_at":"2016-03-18T18:28:22Z","closed_at":null,"merged_at":null,"merge_commit_sha":"7d15ce059484245ac78ffef97fb8e79c4f9a18a4","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/CartoDB/cartodb/pulls/6883/commits","review_comments_url":"https://api.github.com/repos/CartoDB/cartodb/pulls/6883/comments","review_comment_url":"https://api.github.com/repos/CartoDB/cartodb/pulls/comments{/number}","comments_url":"https://api.github.com/repos/CartoDB/cartodb/issues/6883/comments","statuses_url":"https://api.github.com/repos/CartoDB/cartodb/statuses/78e2788dc8df4fcab2b90f5c889ea1524a2d9b44","head":{"label":"CartoDB:serial-ghost-tables","ref":"serial-ghost-tables","sha":"78e2788dc8df4fcab2b90f5c889ea1524a2d9b44","user":{"login":"CartoDB","id":1799254,"avatar_url":"https://avatars.githubusercontent.com/u/1799254?v=3","gravatar_id":"","url":"https://api.github.com/users/CartoDB","html_url":"https://github.com/CartoDB","followers_url":"https://api.github.com/users/CartoDB/followers","following_url":"https://api.github.com/users/CartoDB/following{/other_user}","gists_url":"https://api.github.com/users/CartoDB/gists{/gist_id}","starred_url":"https://api.github.com/users/CartoDB/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/CartoDB/subscriptions","organizations_url":"https://api.github.com/users/CartoDB/orgs","repos_url":"https://api.github.com/users/CartoDB/repos","events_url":"https://api.github.com/users/CartoDB/events{/privacy}","received_events_url":"https://api.github.com/users/CartoDB/received_events","type":"Organization","site_admin":false},"repo":{"id":4909355,"name":"cartodb","full_name":"CartoDB/cartodb","owner":{"login":"CartoDB","id":1799254,"avatar_url":"https://avatars.githubusercontent.com/u/1799254?v=3","gravatar_id":"","url":"https://api.github.com/users/CartoDB","html_url":"https://github.com/CartoDB","followers_url":"https://api.github.com/users/CartoDB/followers","following_url":"https://api.github.com/users/CartoDB/following{/other_user}","gists_url":"https://api.github.com/users/CartoDB/gists{/gist_id}","starred_url":"https://api.github.com/users/CartoDB/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/CartoDB/subscriptions","organizations_url":"https://api.github.com/users/CartoDB/orgs","repos_url":"https://api.github.com/users/CartoDB/repos","events_url":"https://api.github.com/users/CartoDB/events{/privacy}","received_events_url":"https://api.github.com/users/CartoDB/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/CartoDB/cartodb","description":"Location 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