{"action":"created","issue":{"url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/776","repository_url":"https://api.github.com/repos/brianfrankcooper/YCSB","labels_url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/776/labels{/name}","comments_url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/776/comments","events_url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/776/events","html_url":"https://github.com/brianfrankcooper/YCSB/pull/776","id":161833648,"number":776,"title":"add sigar-dist dependency for maven test on Cassandra 2.2+ and tracing function","user":{"login":"jixuan1989","id":1021782,"avatar_url":"https://avatars.githubusercontent.com/u/1021782?v=3","gravatar_id":"","url":"https://api.github.com/users/jixuan1989","html_url":"https://github.com/jixuan1989","followers_url":"https://api.github.com/users/jixuan1989/followers","following_url":"https://api.github.com/users/jixuan1989/following{/other_user}","gists_url":"https://api.github.com/users/jixuan1989/gists{/gist_id}","starred_url":"https://api.github.com/users/jixuan1989/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jixuan1989/subscriptions","organizations_url":"https://api.github.com/users/jixuan1989/orgs","repos_url":"https://api.github.com/users/jixuan1989/repos","events_url":"https://api.github.com/users/jixuan1989/events{/privacy}","received_events_url":"https://api.github.com/users/jixuan1989/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":20,"created_at":"2016-06-23T03:36:50Z","updated_at":"2016-09-28T00:59:13Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/brianfrankcooper/YCSB/pulls/776","html_url":"https://github.com/brianfrankcooper/YCSB/pull/776","diff_url":"https://github.com/brianfrankcooper/YCSB/pull/776.diff","patch_url":"https://github.com/brianfrankcooper/YCSB/pull/776.patch"},"body":"* Firstly, I notice that when using `mvn -pl com.yahoo.ycsb:cassandra2-binding -am   test` on current YCSB version, there is an exception: `no libsigar-universal64-macosx.dylib in java.library.path`. \r\nIt is because Cassandra uses Sigar for collecting system information and Sigar requires some native libs. \r\nSo, I modify the pom.xml to automatically download sigar files, unzip them and add them into java classpath.\r\n\r\n* A new switch for enable/disable Cassandra tracing function. when `cassandra.tracing=true`, Cassandra will trace the traces of read/write operations. It is helpful for debuging and optimizing Cassandra.  (when `cassandra.tracing=false` (default value), nothing changed.)"},"comment":{"url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/comments/250043300","html_url":"https://github.com/brianfrankcooper/YCSB/pull/776#issuecomment-250043300","issue_url":"https://api.github.com/repos/brianfrankcooper/YCSB/issues/776","id":250043300,"user":{"login":"jixuan1989","id":1021782,"avatar_url":"https://avatars.githubusercontent.com/u/1021782?v=3","gravatar_id":"","url":"https://api.github.com/users/jixuan1989","html_url":"https://github.com/jixuan1989","followers_url":"https://api.github.com/users/jixuan1989/followers","following_url":"https://api.github.com/users/jixuan1989/following{/other_user}","gists_url":"https://api.github.com/users/jixuan1989/gists{/gist_id}","starred_url":"https://api.github.com/users/jixuan1989/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jixuan1989/subscriptions","organizations_url":"https://api.github.com/users/jixuan1989/orgs","repos_url":"https://api.github.com/users/jixuan1989/repos","events_url":"https://api.github.com/users/jixuan1989/events{/privacy}","received_events_url":"https://api.github.com/users/jixuan1989/received_events","type":"User","site_admin":false},"created_at":"2016-09-28T00:59:13Z","updated_at":"2016-09-28T00:59:13Z","body":"@risdenk  yep, I think sigar-dist is more important because it impacts the test. Tracing is not an important function and it requires to modify CassandraClient.java. If you think that the content should match with the title of PR, I can commit the modification.\r\n\r\nIn fact, tracing is more important for Cassandra research (serve for log based methods, which are my research works..), rather than performance benchmark."}}
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