[IMPALA-5630] Add a string metric to expose the Kudu client version

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0
• Fix Version/s: Impala 2.10.0
• Component/s: Backend
• Labels: kudu ramp-up
• Epic Color: ghx-label-6
• Assignee: Bikramjeet Vig
• Reporter: Matthew Jacobs
• Created: 07/Jul/17 22:56
• Updated: 31/Jul/17 17:53
• Resolved: 31/Jul/17 17:31

Description

The kudu client version can be accessed via kudu::client::GetShortVersionString(). We should expose this as an Impala string metric, e.g. see how impalad-metrics.h creates a string metric for the Impala server version:

  IMPALA_SERVER_VERSION = m->AddProperty<string>(
      ImpaladMetricKeys::IMPALA_SERVER_VERSION, GetVersionString(true));