{"action":"opened","issue":{"url":"https://api.github.com/repos/grpc/grpc/issues/2299","labels_url":"https://api.github.com/repos/grpc/grpc/issues/2299/labels{/name}","comments_url":"https://api.github.com/repos/grpc/grpc/issues/2299/comments","events_url":"https://api.github.com/repos/grpc/grpc/issues/2299/events","html_url":"https://github.com/grpc/grpc/issues/2299","id":92921600,"number":2299,"title":"Assertion hit","user":{"login":"siddharthab","id":1929612,"avatar_url":"https://avatars.githubusercontent.com/u/1929612?v=3","gravatar_id":"","url":"https://api.github.com/users/siddharthab","html_url":"https://github.com/siddharthab","followers_url":"https://api.github.com/users/siddharthab/followers","following_url":"https://api.github.com/users/siddharthab/following{/other_user}","gists_url":"https://api.github.com/users/siddharthab/gists{/gist_id}","starred_url":"https://api.github.com/users/siddharthab/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/siddharthab/subscriptions","organizations_url":"https://api.github.com/users/siddharthab/orgs","repos_url":"https://api.github.com/users/siddharthab/repos","events_url":"https://api.github.com/users/siddharthab/events{/privacy}","received_events_url":"https://api.github.com/users/siddharthab/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-03T18:46:50Z","updated_at":"2015-07-03T18:46:50Z","closed_at":null,"body":"Context: I am writing a small C++ client for the Google Genomics API. The API has been tested before with the Java client.\r\n\r\nWhile using refresh token credentials with the right scope, I hit the following error:\r\n\r\n```\r\nE0703 11:39:01.673943000 140735078925056 sync_posix.c:48] assertion failed: pthread_mutex_lock(mu) == 0\r\nAbort trap: 6\r\n```\r\n\r\nHappy to send in the code that results in this via email."}}