tree b0f12678c1df47851b8bc65665bae60cd86cacfe
parent 40df29d9b892c660f6626c92472e6c6b4b52007b
author Jordan Bull <jbull@twitter.com> 1481957004 -0800
committer Sijie Guo <sijie@apache.org> 1481957004 -0800

DL-87: Introduce periodic keepalive control record in writer

merge twitter's change from Leigh Stewart

Author: Jordan Bull <jbull@twitter.com>
Author: Sijie Guo <sijieg@twitter.com>
Author: Leigh Stewart <lstewart@twitter.com>

Reviewers: Leigh Stewart <lstewart@apache.org>

Closes #59 from sijie/merge/DL-87