Shulou(Shulou.com)06/03 Report--

When choosing the installation package, try to use the rpm package to install, because some of the configuration inside, rpm package management will help you.

Question 1: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536] [2]: max number of threads [1024] for user [es] is too low, increase to at least [4096]

Reason: unable to create local files, the maximum number of files that users can create is too small

Solution: switch to the root user, edit the limits.conf configuration file, and add something like the following:

Vim / etc/security/limits.conf

Add the following: be careful * do not remove it

* soft nofile 65536 * hard nofile 131072 * soft nproc 2048 * hard nproc 4096

Question 2: max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]

Reason: the maximum virtual memory area vm.max_map_ count is too low

Solution: switch to root user to modify configuration sysctl.conf

Vi / etc/sysctl.conf

Add the following configuration:

Vm.max_map_count=655360

And execute the command:

Sysctl-p

Question 3: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk

Reason: because Centos6 does not support SecComp, and the default bootstrap.system_call_filter of ES5.2.1 is true for detection, the detection fails, and the failure directly results in the failure of ES.

Solution: configure bootstrap.system_call_filter as false in elasticsearch.yml, and note that under Memory:

Bootstrap.memory_lock: falsebootstrap.system_call_filter: false

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.