Linux安裝Elasticsearch
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.x.x-linux-x86_64.tar.gz
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.x.x-linux-x86_64.tar.gz.sha512
shasum -a 512 -c elasticsearch-7.x.x-linux-x86_64.tar.gz.sha512
tar -xzf elasticsearch-7.x.x-linux-x86_64.tar.gz
cd elasticsearch-7.x.x/
注意:
1 建立 elasticsearch 使用者組(可省略)
root@localhost ~]# groupadd elasticsearch
2 建立使用者 es 並設定密碼為es
[root@localhost ~]# useradd es
[root@localhost ~]# passwd es
3 使用者es 新增到 elasticsearch 使用者組(可省略)
[root@localhost ~]# usermod -G elasticsearch es
4 設定sudo許可權(可省略)
[root@localhost ~]# visudo
在root ALL=(ALL) ALL 一行下面
新增es使用者 如下:
es ALL=(ALL) ALL
5 新增成功儲存後切換到es使用者操作
[root@localhost ~]# su es
[es@localhost root]# cd /xx/xx/es/bin #對於的es目錄下
[es@localhost bin]# ./elasticsearch -d #啟動
ERROR: [1] bootstrap checks failed
[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
[2019-06-03T07:05:44,761][INFO ][o.e.n.Node ] [hz] stopping ...
[2019-06-03T07:05:44,788][INFO ][o.e.n.Node ] [hz] stopped
[2019-06-03T07:05:44,788][INFO ][o.e.n.Node ] [hz] closing ...
[2019-06-03T07:05:44,801][INFO ][o.e.n.Node ] [hz] closed
[2019-06-03T07:05:44,804][INFO ][o.e.x.m.p.NativeController] [hz] Native controller process has stopped - no new native processes can be started
解決辦法
修改config/elasticsearch.yml下,放開node.name註釋,可更改名稱
node.name: node-1
ERROR: [1] bootstrap checks failed
[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
解決辦法
#ip替換host1等,多節點請新增多個ip地址,單節點可寫按預設來
#配置以下三者,最少其一
#[discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes]
cluster.initial_master_nodes: ["node-1"] #這裡的node-1為node-name配置的值
解決辦法
#修改config/elasticsearch.yml,修改為當前es地址或0.0.0.0
network.host: 0.0.0.0
Failed to clear cache for realms [[]]
暫無解決辦法,官方github上已經有人提issue了
[status][plugin:spaces@7.1.1] Status changed from yellow to green - Ready
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
解決辦法:
臨時解決辦法:切換root使用者執行如下命令
sysctl -w vm.max_map_count=262144
永久解決辦法:在 /etc/sysctl.conf檔案最後新增一行
vm.max_map_count=262144
sysctl -p #使修改立即生效
檢視修改結果:
sysctl -a|grep vm.max_map_count
顯示:
vm.max_map_count = 262144
ERROR: bootstrap checks failed
memory locking requested for elasticsearch process but memory is not locked
這是因為設定了鎖定記憶體引數bootstrap.memory_lock=true
在/config/jvm.options 檔案內 堆大小設定的預設
-Xms1g
-Xmx1g
調小即可(記憶體夠大,就調大。建議是伺服器記憶體的一半)
-Xms108m
-Xmx108m
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