{"action":"opened","issue":{"url":"https://api.github.com/repos/Azure/azure-data-lake-store-python/issues/117","repository_url":"https://api.github.com/repos/Azure/azure-data-lake-store-python","labels_url":"https://api.github.com/repos/Azure/azure-data-lake-store-python/issues/117/labels{/name}","comments_url":"https://api.github.com/repos/Azure/azure-data-lake-store-python/issues/117/comments","events_url":"https://api.github.com/repos/Azure/azure-data-lake-store-python/issues/117/events","html_url":"https://github.com/Azure/azure-data-lake-store-python/issues/117","id":189257523,"number":117,"title":"Upload has inconsistent hangs, looks like thread contention/locking","user":{"login":"begoldsm","id":8781927,"avatar_url":"https://avatars.githubusercontent.com/u/8781927?v=3","gravatar_id":"","url":"https://api.github.com/users/begoldsm","html_url":"https://github.com/begoldsm","followers_url":"https://api.github.com/users/begoldsm/followers","following_url":"https://api.github.com/users/begoldsm/following{/other_user}","gists_url":"https://api.github.com/users/begoldsm/gists{/gist_id}","starred_url":"https://api.github.com/users/begoldsm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/begoldsm/subscriptions","organizations_url":"https://api.github.com/users/begoldsm/orgs","repos_url":"https://api.github.com/users/begoldsm/repos","events_url":"https://api.github.com/users/begoldsm/events{/privacy}","received_events_url":"https://api.github.com/users/begoldsm/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-11-14T23:36:00Z","updated_at":"2016-11-14T23:36:00Z","closed_at":null,"body":"During upload, we are seeing throughput drop to zero on some attempts for periods up to 20 minutes. During this time it appears that all processing has stopped, as though the uploader is deadlocked or waiting for some exclusive lock to be released. This is drastically impacting overall performance of the uploader, especially when run for very large files."}}
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