ELK experiment (2) installing Elastic Search single Node
Linux installation
java -version
echo $JAVA_HOME
No return, environment is not set well...
vi /etc/profile
export JAVA_HOME=/usr/java/jdk1.8.0_162
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
Refresh
source /etc/profile
have
download
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.3.tar.gz
tar -zxvf elasticsearch-6.2.3.tar.gz
cd elasticsearch-6.2.3/bin
./ elasticsearch
Allow me to correct a mistake.
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
This error is caused by using root to start elasticsearch. elasticsearch is not allowed to be started by root, so we need to add a user or add a parameter.
cp -r elasticsearch-6.2.3 /usr/
su pactera
./ elasticsearch
Exception in thread "main" java.nio.file.AccessDeniedException: /usr/elasticsearch-6.2.3/config/jvm.options
Allow me to correct one more mistake.
I feel like I don't have permission on the directory. Add one.
chown pactera /usr/elasticsearch-6.2.3/ -R
chown -R Folder name User name
Memory settings are small, but can be ignored
You can use this before ES5, but not before ES 6.
vi bin/elasticsearch
ES_JAVA_OPTS="-Des.insecure.allow.root=true"
Or start adding parameters
./ elasticsearch -Des.insecure.allow.root=true
Run as a background service
./ elasticsearch -d
curl -i localhost:9200
Local access has data, but remote access cannot, allow me to fix an error
vi config/elasticsearch.yml
network.host: 0.0.0.0
After changing to IP, IP cannot be disclosed
bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [2] bootstrap checks failed
Three more errors. Keep going.
ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: memory locking requested for elasticsearch process but memory is not locked
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
Error 2
vi elasticsearch.yml
Add 2 lines
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
error 3
Max virtual memory is increased by 10 times, right?
temporary increase
sysctl -w vm.max_map_count=655360
sysctl -a | grep "vm.max_map_count"
Or permanently.
vi /etc/sysctl.conf
vm.max_map_count=655360
sysctl -p
Error 1 left, maximum file description
[2018-04-16T10:43:04,079][INFO ][o.e.b.BootstrapChecks ] [node-1] bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [1] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
vi /etc/security/limits.conf
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
And then we need to reboot.
192.168.209.160:9200 can be accessed from the external network
Windows installation
https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.3.msi
This component is a complete idiot...
