<span style="line-height: 20.8px;">Big data platform vendor </span><a href="http://www.mapr.com/?cid=abpr" style="line-height: 20.8px;">MapR Technologies Inc.,</a><span style="line-height: 20.8px;"> has raised another $50 million, bringing its total funding to $194 million and giving it the runway, executives said it needs to get to an initial public offering (IPO).</span>