{"action":"created","issue":{"url":"https://api.github.com/repos/bloomberg/chef-bach/issues/656","repository_url":"https://api.github.com/repos/bloomberg/chef-bach","labels_url":"https://api.github.com/repos/bloomberg/chef-bach/issues/656/labels{/name}","comments_url":"https://api.github.com/repos/bloomberg/chef-bach/issues/656/comments","events_url":"https://api.github.com/repos/bloomberg/chef-bach/issues/656/events","html_url":"https://github.com/bloomberg/chef-bach/issues/656","id":173873010,"number":656,"title":"UseConcMarkSweep for HBase and java.net.preferIPv4Stack=true for all daemons","user":{"login":"cbaenziger","id":4192761,"avatar_url":"https://avatars.githubusercontent.com/u/4192761?v=3","gravatar_id":"","url":"https://api.github.com/users/cbaenziger","html_url":"https://github.com/cbaenziger","followers_url":"https://api.github.com/users/cbaenziger/followers","following_url":"https://api.github.com/users/cbaenziger/following{/other_user}","gists_url":"https://api.github.com/users/cbaenziger/gists{/gist_id}","starred_url":"https://api.github.com/users/cbaenziger/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cbaenziger/subscriptions","organizations_url":"https://api.github.com/users/cbaenziger/orgs","repos_url":"https://api.github.com/users/cbaenziger/repos","events_url":"https://api.github.com/users/cbaenziger/events{/privacy}","received_events_url":"https://api.github.com/users/cbaenziger/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/bloomberg/chef-bach/labels/bug","name":"bug","color":"fc2929"},{"url":"https://api.github.com/repos/bloomberg/chef-bach/labels/HBase","name":"HBase","color":"0052cc"},{"url":"https://api.github.com/repos/bloomberg/chef-bach/labels/YARN","name":"YARN","color":"0052cc"}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-08-29T21:08:06Z","updated_at":"2016-08-31T16:39:36Z","closed_at":"2016-08-31T16:39:36Z","body":"The merge of friendly introduced a number of regressions with regards to how we initialize Java for HBase and YARN:\r\n\r\nFor HBase we started using the serial GC:\r\nIn our recipe [hbase_config:167](https://github.com/bloomberg/chef-bach/blob/edc6e54727658fc15d8e4225f32234c71712458f/cookbooks/bcpc-hadoop/recipes/hbase_config.rb#L167) we try to set use CMS and set Java to prefer IPv4. Unfortunately we override this `node` attribute with:\r\n[hbase_config:210](https://github.com/bloomberg/chef-bach/blob/edc6e54727658fc15d8e4225f32234c71712458f/cookbooks/bcpc-hadoop/recipes/hbase_config.rb#L210) which does not pull in the previously configured options.\r\n\r\nThis means region servers use serial (pause the world) GC!\r\n\r\nFurther, in [`yarn-env.sh`](https://github.com/bloomberg/chef-bach/blob/736fc13c094e0b19c95357a6c10d28919dc6f5c6/cookbooks/bcpc-hadoop/attributes/yarn.rb) no where do we set `-Djava.net.preferIPv4Stack=true`."},"comment":{"url":"https://api.github.com/repos/bloomberg/chef-bach/issues/comments/243824262","html_url":"https://github.com/bloomberg/chef-bach/issues/656#issuecomment-243824262","issue_url":"https://api.github.com/repos/bloomberg/chef-bach/issues/656","id":243824262,"user":{"login":"amithkanand","id":6287145,"avatar_url":"https://avatars.githubusercontent.com/u/6287145?v=3","gravatar_id":"","url":"https://api.github.com/users/amithkanand","html_url":"https://github.com/amithkanand","followers_url":"https://api.github.com/users/amithkanand/followers","following_url":"https://api.github.com/users/amithkanand/following{/other_user}","gists_url":"https://api.github.com/users/amithkanand/gists{/gist_id}","starred_url":"https://api.github.com/users/amithkanand/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/amithkanand/subscriptions","organizations_url":"https://api.github.com/users/amithkanand/orgs","repos_url":"https://api.github.com/users/amithkanand/repos","events_url":"https://api.github.com/users/amithkanand/events{/privacy}","received_events_url":"https://api.github.com/users/amithkanand/received_events","type":"User","site_admin":false},"created_at":"2016-08-31T16:39:36Z","updated_at":"2016-08-31T16:39:36Z","body":"This is taken care by PR #655 "}}
{"actor":{"display_login":"amithkanand"}}