WARNING: Version 5.0 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Elasticsearch uses a
hybrid mmapfs / niofs directory by
default to store its indices. The default operating system limits on mmap
counts is likely to be too low, which may result in out of memory exceptions.
On Linux, you can increase the limits by running the following command as
sysctl -w vm.max_map_count=262144
To set this value permanently, update the
vm.max_map_count setting in
/etc/sysctl.conf. To verify after rebooting, run
The RPM and Debian packages will configure this setting automatically. No further configuration is required.
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