elasticsearch6安裝與使用

groupadd esgroup
useradd esroot -g esgroup -p password
cd /home/esroot/
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.2.tar.gz
tar -zxvf elasticsearch-6.4.2.tar.gz
mv elasticsearch-6.4.2 elasticsearch
chown -R esroot:esgroup .
su esroot

x'x'x'x修改elasticsearch的ip和端口

vi config/elasticsearch.yml
(空格)network.host:(空格)0.0.0.0
(空格)http.port:(空格)9200

安裝ik中文分詞器：

./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.4.2/elasticsearch-analysis-ik-6.4.2.zip

安裝完成後需重啓es

su e's'root

./bin/elasticsearch -d

curl http://localhost:9200/_cat/plugins

//顯示，表示安裝 jbLBIzO analysis-ik 6.2.1

常見問題解決：

問題：elasticsearch dead but subsys locked
解決：rm -rf /var/lock/subsys/elasticsearch
重複出現建議看log，目錄：/var/log/elasticsearch/elasticsearch.log


問題： max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
解決：
vi /etc/security/limits.conf
esroot soft nofile 65536
esroot hard nofile 65536


問題：max number of threads [1024] for user [elasticsearch] is too low, increase to at least [4096]
解決：
vi /etc/security/limits.d/90-nproc.conf
*          soft    nproc     10240

問題：system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
緣由：由於centos6.x操做系統不支持SecComp，而elasticsearch 5.5.2默認bootstrap.system_call_filter爲true進行檢測，因此致使檢測失敗，失敗後直接致使ES不能啓動
解決：
vi config/elasticsearch.yml
bootstrap.memory_lock: false
bootstrap.system_call_filter: false

問題：max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
解決：
vim /etc/sysctl.conf
vm.max_map_count=262144
sysctl -p

 

https://blog.csdn.net/zhu815496402/article/details/83181300

https://my.oschina.net/liuyuantao/blog/1798724

https://blog.csdn.net/opensure/article/details/47617437

 

 

kibana安裝

wget https://artifacts.elastic.co/downloads/kibana/kibana-6.4.2-linux-x86_64.tar.gz

tar -zxvf kibana-6.4.2-linux-x86_64.tar.gz

mv kibana-6.4.2-linux-x86_64 kibana

cd kibana

vi conf/kibana.yml

server.host:0.0.0.0

./bin/kibana &

http://127.0.0.1:5601

 

使用問題：

問題：
Caused by: org.apache.lucene.search.BooleanQuery$TooManyClauses: maxClauseCount is set to 1024
解決：
echo ' indices.query.bool.max_clause_count: 10240' >>  /home/esroot/elasticsearch/config/elasticsearch.yml

http://192.168.8.112:9200/_cat/indices?v&health=yellow