[
1]
https://www.jianshu.com/p/10949f44ce9c
在linux服務器上安裝jdk
[
2]
https://www.elastic.co/guide/en/elasticsearch/reference/current/rpm.html
Install Elasticsearch with RPM
[
3]
https://github.com/portainer/portainer/issues/507
shasum command not found" when building.
[
4]
https://blog.csdn.net/newtelcom/article/details/80199086
ES安裝
[
5]
https://www.jianshu.com/p/1d1886bfb5b8
Centos7下避坑安裝elasticsearch [采用下載rpm包方式安裝ES]
[
6]
https://blog.csdn.net/Angry_Mills/article/details/80276077
elasticsearch 6.x (二) linux部署【參考elasticsearch.yml配置】
[
7]
https://www.cnblogs.com/sunmmi/articles/6435000.html
ElasticSearch 5.0.0 安裝部署常見錯誤或問題
[
8]
1.安裝jdk
1.1 執行命令下面命令查看可安裝java版本
yum -y list java*
1.2 選擇一個java版本進行安裝，
yum install -y java-1.8.0-openjdk-devel.x86_64
這里有個地方要注意，要選擇 要帶有-devel的安裝，因為這個安裝的是jdk，而那個不帶-devel的安裝完了其實是jre。
1.3 輸入java -version查看已安裝的jdk版本，當出現如下輸出表示安裝成功。
1.4 jdk 的安裝目錄
/usr/lib/jvm
1.5 配置環境變量，編輯/etc/profile文件：
vi /etc/profile
1.6 在文件尾部添加如下配置：
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.181-3.b13.el6_10.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
1.7 :wq退出vim編輯器，然后使用命令更新配置
source /etc/profile
2. 安裝ES
2.1 依次執行命令
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.2.zip
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.2.zip.sha512
shasum -a 512 -c elasticsearch-6.3.2.zip.sha512
unzip elasticsearch-6.3.2.zip
cd elasticsearch-6.3.2/
遇到錯誤1
-bash: shasum: command not found
解決方案：在CentOS上，“shasum”被稱為“sha1sum”，運行下面命令修復此問題
ln -s /usr/bin/sha1sum /usr/bin/shasum
遇到錯誤2
sha1sum: invalid option -- 'a'
解決方案：
yum install -y perl-Digest-SHA
遇到報錯3
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000c5330000, 986513408, 0) failed; error='Cannot allocate memory' (errno=12)
解決方案：調小啟動內存，如果512m還是不行的話，就得要再往下調了
[root@iZwz9ahuk6xeihs1n3gqy5Z elasticsearch-6.3.2]# vi config/jvm.options
#-Xms2g
#-Xmx2g
-Xms512m
-Xmx512m
遇到報錯4：無法以root權限啟動
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
解決方案：創建一個非root用戶並賦予目錄該用戶權限，再啟動
#root身份
groupadd es
useradd es -g es -p es
chown es:es ${elasticsearch_HOME}/ #存放elasticsearch的目錄
su - es #切換到es用戶下
${elasticsearch_HOME}/bin/elasticsearch #啟動elasticsearch
遇到報錯5
ERROR: [4] bootstrap checks failed
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
[2]: max number of threads [1024] for user [e] is too low, increase to at least [4096]
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[4]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
解決方案：
【5.1】【5.2】
#root身份
vi /etc/security/limits.conf
#文件末尾添加內容（*也是要加上去）
* soft nofile 65536
* hard nofile 131072
* soft nproc 4096
* hard nproc 4096
【5.3】
#root身份
sysctl -w vm.max_map_count=262144
vim /etc/sysctl.conf #讓配置永久生效
#文件末尾添加內容
vm.max_map_count=262144
【5.4】
Centos6不支持SecComp，而ES6默認bootstrap.system_call_filter為true
vim config/elasticsearch.yml
禁用：在elasticsearch.yml中配置bootstrap.system_call_filter為false，注意要在Memory下面: 取消bootstrap.memory_lock的注釋，添加bootstrap.system_call_filter 配置
#注意在":"后面需要空格
bootstrap.memory_lock: false
bootstrap.system_call_filter: false