{"action":"created","issue":{"url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/77","repository_url":"https://api.github.com/repos/openstreetmap/mod_tile","labels_url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/77/labels{/name}","comments_url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/77/comments","events_url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/77/events","html_url":"https://github.com/openstreetmap/mod_tile/issues/77","id":35277748,"number":77,"title":"\"Failed to read cmd on fd\" errors since mod_tile update on 2nd June","user":{"login":"SomeoneElseOSM","id":5311740,"avatar_url":"https://avatars.githubusercontent.com/u/5311740?v=3","gravatar_id":"","url":"https://api.github.com/users/SomeoneElseOSM","html_url":"https://github.com/SomeoneElseOSM","followers_url":"https://api.github.com/users/SomeoneElseOSM/followers","following_url":"https://api.github.com/users/SomeoneElseOSM/following{/other_user}","gists_url":"https://api.github.com/users/SomeoneElseOSM/gists{/gist_id}","starred_url":"https://api.github.com/users/SomeoneElseOSM/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SomeoneElseOSM/subscriptions","organizations_url":"https://api.github.com/users/SomeoneElseOSM/orgs","repos_url":"https://api.github.com/users/SomeoneElseOSM/repos","events_url":"https://api.github.com/users/SomeoneElseOSM/events{/privacy}","received_events_url":"https://api.github.com/users/SomeoneElseOSM/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2014-06-09T11:32:09Z","updated_at":"2016-04-25T03:11:53Z","closed_at":null,"body":"I have a fairly standard Ubuntu 14.04 based map server, set up as per http://wiki.openstreetmap.org/wiki/User:SomeoneElse/Ubuntu_1404_tileserver .\r\n\r\nI installed it on 26th April, and everything worked as expected.  On 2nd June I updated mod_tile from github and started seeing \"Failed to read cmd on fd\" errors in syslog:\r\n\r\nJun  9 12:20:52 ubuntuvm38 renderd[21354]: DEBUG: Got incoming request with protocol version 2\r\nJun  9 12:20:52 ubuntuvm38 renderd[21354]: DEBUG: Got command RenderPrio fd(14) xml(default), z(18), x(130734), y(85209), mime(image/png), options()\r\nJun  9 12:20:55 ubuntuvm38 renderd[21354]: DEBUG: DONE TILE default 18 130728-130735 85208-85215 in 2.407 seconds\r\nJun  9 12:20:55 ubuntuvm38 renderd[21354]: DEBUG: Sending render cmd(3 default 18/130735/85209) with protocol version 2 to fd 8\r\nJun  9 12:20:55 ubuntuvm38 renderd[21354]: DEBUG: Failed to read cmd on fd 8\r\nJun  9 12:20:55 ubuntuvm38 renderd[21354]: DEBUG: Connection 0, fd 8 closed, now 5 left\r\n\r\nThis doesn't stop it working (all tiles are still being rendered as expected) but it does seem odd.  Other server updates between 26th April and 2nd June include Ubuntu apt-get updates, a database reload from a new PBF file, but no changes to osm2pgsql style or (presumably) database columns etc.\r\n\r\nhttp://forum.openstreetmap.org/viewtopic.php?id=25587\r\n\r\n(from May 23rd) looks like it might be a similar issue.\r\n"},"comment":{"url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/comments/214104024","html_url":"https://github.com/openstreetmap/mod_tile/issues/77#issuecomment-214104024","issue_url":"https://api.github.com/repos/openstreetmap/mod_tile/issues/77","id":214104024,"user":{"login":"liaomeng","id":16057660,"avatar_url":"https://avatars.githubusercontent.com/u/16057660?v=3","gravatar_id":"","url":"https://api.github.com/users/liaomeng","html_url":"https://github.com/liaomeng","followers_url":"https://api.github.com/users/liaomeng/followers","following_url":"https://api.github.com/users/liaomeng/following{/other_user}","gists_url":"https://api.github.com/users/liaomeng/gists{/gist_id}","starred_url":"https://api.github.com/users/liaomeng/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/liaomeng/subscriptions","organizations_url":"https://api.github.com/users/liaomeng/orgs","repos_url":"https://api.github.com/users/liaomeng/repos","events_url":"https://api.github.com/users/liaomeng/events{/privacy}","received_events_url":"https://api.github.com/users/liaomeng/received_events","type":"User","site_admin":false},"created_at":"2016-04-25T03:11:53Z","updated_at":"2016-04-25T03:11:53Z","body":"help!!  I have the same problem as  @avirupd-egnaroinc.....Could anyone tell me the solution to this?"}}