Shulou(Shulou.com)06/02 Report--

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...

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