I'm running Ubuntu 14.04 with Mapr5.2.1. In my hoststat.log file, I see the error:
2017-07-05 11:26:04,7699 ERROR Hoststats hoststats.cc:276 Thread: 139946610390784 ERROR: Failed to find shared library for backend mysql with error count since last shown error: 0
On nodes where I have mapr-metrics installed, I have the following libmysqlclient-dev installed:
Status: install ok installed
Maintainer: Ubuntu Developers <email@example.com>
I am assuming here that libmysqlclient version 5.5.55 is not libmysqlclient16, which is what is needed by mapr. Here is a thread from 2014 that asked the same question
The solution was to install libmysql16 instead of whatever 5.5.55 is. However, that thread is from 2014 and I'm hoping there is another solution to this because I cannot find libmysqlclient16.