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Fix Elasticsearch map count error:
When you launch the Docker environment on some Linux systems, the Elasticsearch service fails to start and the following error displays:
1 2 ERROR:  bootstrap checks failed : max virtual memory areas vm.max_map_count  is too low, increase to at least 
To fix the error, run the following
sysctl command to increase the memory map area allocation.
1 sysctl -w vm.max_map_count=262144
To permanently update the system setting for
Edit the sysctl configuration file (
etc/sysctl.conf) and set the required value for the
Reboot your system.
Run the following command to verify the change.