A confirmed centos system was installed for the 64-bit, not of the x86
1. Download elasticsearch package
2. extracting archive tar -zxvf
3. Add a user elk, elasticsearch7 inoperative root user
4. Create a new user must use the chown -R username folder: assign permissions
Second, the configuration enables external network access
Third, the processing system is configured three
1、max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
The maximum number of files open at the same time each process is too small, you can view the current number of the following two commands
ulimit -Hn ulimit -Sn
/Etc/security/limits.conf modify files, increase the allocation, log back into effect after the user exits
* Soft * hard nofile nofile 65536 65536
2、max number of threads [3818] for user [es] is too low, increase to at least [4096]
The problem above, the maximum number of threads is too low. Modify the configuration file /etc/security/limits.conf, increase the allocation
soft nproc 4096 hard nproc 4096
Can be viewed via the command
Ulimit -Hu Ulimit -su
3、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
Modify /etc/sysctl.conf file, increase the allocation vm.max_map_count = 262144
we /etc/sysctl.conf
sysctl -p
Run sysctl -p take effect
Right limits.conf
Fourth, the problem of handling bootstrap checks failed
[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
It's time to edit elasticsearch.yml file, # cluster.initial_master_nodes: [ "node-1", "node-2"] amended as cluster.initial_master_nodes: [ "node-1"],
Another solution:
报错：ERROR: bootstrap checks failed
Solution: Configure the elasticsearch.yml in bootstrap.system_call_filter is false, to the following in Memory:
bootstrap.memory_lock: false
bootstrap.system_call_filter: false