Flink not running properly.

[Sarabjyotsingh Multani]

Hello Admin,
         When I run "tail -f log/flink-*-taskexecutor-*.out" in command
line , I get the following error : "Invalid maximum direct memory size:
-XX:MaxDirectMemorySize=8388607T
The specified size exceeds the maximum representable size.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit."
Please help.