What is 'OksPlogThread' thread in a system which has Oracle products installed?

Issue

• When I check 'ps' command output, there is a 'OksPlogThread' process in 'D' state.
• What is 'OksPlogThread'?
• Is the process status in 'D' state normal behaviour?

An example 'ps' command output is:

# ps aux -L | awk '$2 == "PID"; $10 ~ /D/'
USER       PID   LWP %CPU NLWP %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root     28719 28719  0.0    1  0.0      0     0 ?        D    May31   0:00 [OksPlogThread]