elasticsearch安裝和配置java
elasticsearch啓動報錯:can not run elasticsearch as rootnode
elasticsearch啓動報錯:ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]
[2]: max number of threads [3818] for user [es] 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]es6
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1、elasticsearch解壓安裝
一、解壓elasticsearchapp
cd /java/es6/
tar -zxvf elasticsearch-6.8.13.tar.gz
二、修改文件夾名稱和移動位置curl
mv elasticsearch-6.8.13 /java/elasticsearch6
三、進入配置文件目錄jvm
cd /java/elasticsearch6/config
[root@host-12 java]# cd /java/elasticsearch6/config
[root@host-12 config]# ll
總用量 32
-rw-r-----. 1 631 503 2853 10月 16 17:04 elasticsearch.yml
-rw-r-----. 1 631 503 3885 10月 16 17:04 jvm.options
-rw-r-----. 1 631 503 13085 10月 16 17:17 log4j2.properties
-rw-r-----. 1 631 503 473 10月 16 17:17 role_mapping.yml
-rw-r-----. 1 631 503 197 10月 16 17:17 roles.yml
-rw-r-----. 1 631 503 0 10月 16 17:17 users
-rw-r-----. 1 631 503 0 10月 16 17:17 users_rolesjsp
四、建立數據和日誌目錄
mkdir -p /java/elasticsearch6/esdata mkdir -p /java/elasticsearch6/eslogs
五、修改配置文件:
vi /java/elasticsearch6/config/elasticsearch.yml
修改內容:
#集羣名稱 cluster.name: myes6 #節點名稱 node.name: node-11 #數據目錄 path.data: /java/elasticsearch6/esdata #日誌目錄 path.logs: /java/elasticsearch6/eslogs # 是否鎖定內存在啓動時 bootstrap.memory_lock: false #centos6.x操做系統不支持SecComp,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。 #若是不配置,會出現錯誤:system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk bootstrap.system_call_filter: false #IP地址 network.host: 192.168.170.11 #端口號 http.port: 9200 #集羣發現 discovery.zen.ping.unicast.hosts: ["192.168.170.11", "192.168.170.12", "192.168.170.13"]
2、elasticsearch設置環境變量
一、配置elasticsearch運行的環境變量,簡化命令,配置後,不用拼寫完整路徑:
vi /etc/profile
二、在文件的最後加上:
ELASTICSEARCH_HOME=/java/elasticsearch6/ PATH=$PATH:$ELASTICSEARCH_HOME/bin export ELASTICSEARCH_HOME PATH
三、讓環境變量配置當即生效:
source /etc/profile
3、啓動elasticsearch
/java/elasticsearch6/bin/elasticsearch
若是設置環境變量,則能夠:
elasticsearch
elasticsearch啓動時報錯:can not run elasticsearch as root
不能使用root啓動
Caused by: java.lang.RuntimeException: can not run elasticsearch as root at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:103) ~[elasticsearch-6.8.13.jar:6.8.13] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:170) ~[elasticsearch-6.8.13.jar:6.8.13] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-6.8.13.jar:6.8.13] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-6.8.13.jar:6.8.13] ... 6 more
增長es用戶:
groupadd es useradd es -g es passwd es
新的 密碼:
從新輸入新的 密碼:
passwd:全部的身份驗證令牌已經成功更新。
#設置文件夾的權限
cd /java chown -R es:es elasticsearch6
切換爲es用戶:
su es
再次啓動:
/java/elasticsearch6/bin/elasticsearch
ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]
[2]: max number of threads [3818] for user [es] 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]
[2021-02-04T16:28:09,472][INFO ][o.e.n.Node ] [node-11] stopping ...
[2021-02-04T16:28:09,546][INFO ][o.e.n.Node ] [node-11] stopped
[2021-02-04T16:28:09,546][INFO ][o.e.n.Node ] [node-11] closing ...
[2021-02-04T16:28:09,576][INFO ][o.e.n.Node ] [node-11] closed
切換到Root用戶:
su root
[1][2]解決(切換到root用戶):
vi /etc/security/limits.conf
文件後面添加下面的內容:
# soft表示爲超過這個值就會有warnning # hard則表示不能超過這個值 * soft nofile 65536 * hard nofile 131072 * soft nproc 2048 * hard nproc 4096
若是[1]方法沒有解決[2],能夠再執行下面的解決[2](切換到root用戶):
【20-nproc.conf】這個文件可能每一個人都不同,能夠進入目錄查看具體的文件
vi /etc/security/limits.d/20-nproc.conf
Centos7默認就是:4096,不須要再修改,若是不是,請修改
* soft nproc 4096 root soft nproc unlimited
[3]解決(切換到root用戶):
vi /etc/sysctl.conf
增長內容:
vm.max_map_count=655360
保存後,執行命令:
sysctl -p
最後重啓Linux系統(必須),不重啓不生效
切換爲es用戶:
su es
再次啓動:
/java/elasticsearch6/bin/elasticsearch
或後臺啓動:
/java/elasticsearch6/bin/elasticsearch -d
後臺啓動能夠經過jsp查看有沒有進程。
[root@host-11 ~]# jps
992 QuorumPeerMain
1490 Elasticsearch
1551 Jps
啓動成功後,進行驗證:
[node-11] publish_address {192.168.170.11:9200}, bound_addresses {192.168.170.11:9200}
[node-11] license [bf28e518-3560-4e69-a605-4e97b2055ba7] mode [basic] - valid
進行驗證:
瀏覽器打開:
http://192.168.170.11:9200/
或者在Linux命令窗口驗證:
curl http://192.168.170.11:9200/
返回結果:
{
"name" : "node-11",
"cluster_name" : "myes6",
"cluster_uuid" : "xDGeM7glQECODLuS32Qo9A",
"version" : {
"number" : "6.8.13",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "be13c69",
"build_date" : "2020-10-16T09:09:46.555371Z",
"build_snapshot" : false,
"lucene_version" : "7.7.3",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}
查看集羣狀態:
http://192.168.170.11:9200/_cluster/stats?pretty
查看單個節點狀態:
http://192.168.170.11:9200/_nodes/node-11/process?pretty
查看ES集羣健康狀態
http://192.168.170.11:9200/_cluster/health?pretty
{
"cluster_name" : "myes6", //集羣名稱
"status" : "green", //集羣的狀態紅綠燈,綠:健康,黃:亞健康,紅:病態
"timed_out" : false,
"number_of_nodes" : 2, //節點數
"number_of_data_nodes" : 2, //數據節點數
"active_primary_shards" : 12,
"active_shards" : 24,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 100.0
}
查看指定索引庫的健康狀態
http://192.168.170.11:9200/_cluster/health/stu?pretty
多個索引:
http://192.168.170.11:9200/_cluster/health/index_name1,index_name2?pretty
查看集羣的主節點:
瀏覽器打開:
http://192.168.170.12:9200/_cat/master?v
或者在Linux命令窗口驗證:
curl 192.168.170.12:9200/_cat/master?v
輸出內容:
id host ip node
CDH9HpfRRmaAN3VBbj4Vow 192.168.170.11 192.168.170.11 node-11
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©Copyright 蕃薯耀 2021-02-20
https://www.cnblogs.com/fanshuyao/