elasticsearch安装和配置，elasticsearch启动报错：can not run elasticsearch as root

程序员文章站 2022-07-13 07:59:44

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elasticsearch安装和配置

elasticsearch启动报错：can not run elasticsearch as root

elasticsearch启动报错：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]

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一、elasticsearch解压安装
1、解压elasticsearch

cd /java/es6/
tar -zxvf elasticsearch-6.8.13.tar.gz

2、修改文件夹名称和移动位置

mv elasticsearch-6.8.13 /java/elasticsearch6

3、进入配置文件目录

cd /java/elasticsearch6/config

[root@host-12 java]# cd /java/elasticsearch6/config
[root@host-12 config]# ll
总用量 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_roles

4、创建数据和日志目录

mkdir -p /java/elasticsearch6/esdata

mkdir -p /java/elasticsearch6/eslogs

5、修改配置文件：

vi /java/elasticsearch6/config/elasticsearch.yml

修改内容：

elasticsearch安装和配置，elasticsearch启动报错：can not run elasticsearch as root

博客分类： java蕃薯耀分享Linux elasticsearch process is too lowelasticsearch [3] bootstrap checks failedelasticsearch can not run elasticsearch as rootelasticsearch安装和配置蕃薯耀

#集群名称
cluster.name: myes6
#节点名称
node.name: node-11
#数据目录
path.data: /java/elasticsearch6/esdata
#日志目录
path.logs: /java/elasticsearch6/eslogs
# 是否锁定内存在启动时
bootstrap.memory_lock: false
#centos6.x操作系统不支持SecComp，默认bootstrap.system_call_filter为true进行检测，所以导致检测失败，失败后直接导致ES不能启动。
#如果不配置，会出现错误：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
#端口号
http.port: 9200
#集群发现
discovery.zen.ping.unicast.hosts: ["192.168.170.11", "192.168.170.12", "192.168.170.13"]

二、elasticsearch设置环境变量

1、配置elasticsearch运行的环境变量，简化命令，配置后，不用拼写完整路径：

vi /etc/profile

2、在文件的最后加上：

ELASTICSEARCH_HOME=/java/elasticsearch6/
PATH=$PATH:$ELASTICSEARCH_HOME/bin
export ELASTICSEARCH_HOME PATH

3、让环境变量配置立即生效：

source /etc/profile

三、启动elasticsearch

/java/elasticsearch6/bin/elasticsearch

如果设置环境变量，则可以：

elasticsearch

elasticsearch启动时报错：can not run elasticsearch as root

不能使用root启动

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

增加es用户：

groupadd es

useradd es -g es

passwd es

新的密码：
重新输入新的密码：
passwd：所有的身份验证令牌已经成功更新。

#设置文件夹的权限

cd /java

chown -R es:es elasticsearch6

切换为es用户：

su es

再次启动：

/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

切换到Root用户：

su root

[1][2]解决（切换到root用户）：

vi /etc/security/limits.conf

文件后面添加下面的内容：

# soft表示为超过这个值就会有warnning
# hard则表示不能超过这个值
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096

如果[1]方法没有解决[2]，可以再执行下面的解决[2]（切换到root用户）：
【20-nproc.conf】这个文件可能每个人都不一样，可以进入目录查看具体的文件

vi /etc/security/limits.d/20-nproc.conf

Centos7默认就是：4096，不需要再修改，如果不是，请修改

* soft nproc 4096
root soft nproc unlimited

[3]解决（切换到root用户）：

vi /etc/sysctl.conf

增加内容：

vm.max_map_count=655360

保存后，执行命令：

sysctl -p

最后重启Linux系统（必须），不重启不生效

切换为es用户：

su es

再次启动：

/java/elasticsearch6/bin/elasticsearch

或后台启动：

/java/elasticsearch6/bin/elasticsearch -d

后台启动可以通过jsp查看有没有进程。
[root@host-11 ~]# jps
992 QuorumPeerMain
1490 Elasticsearch
1551 Jps

启动成功后，进行验证：
[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

进行验证：
浏览器打开：

http://192.168.170.11:9200/

或者在Linux命令窗口验证：

curl http://192.168.170.11:9200/

返回结果：
{
"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"
}

查看集群状态：

http://192.168.170.11:9200/_cluster/stats?pretty

查看单个节点状态：

http://192.168.170.11:9200/_nodes/node-11/process?pretty

查看ES集群健康状态

http://192.168.170.11:9200/_cluster/health?pretty

{
"cluster_name" : "myes6", //集群名称
"status" : "green", //集群的状态红绿灯，绿：健康，黄：亚健康，红：病态
"timed_out" : false,
"number_of_nodes" : 2, //节点数
"number_of_data_nodes" : 2, //数据节点数
"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
}

查看指定索引库的健康状态

http://192.168.170.11:9200/_cluster/health/stu?pretty

多个索引：

http://192.168.170.11:9200/_cluster/health/index_name1,index_name2?pretty

查看集群的主节点：
浏览器打开：

http://192.168.170.12:9200/_cat/master?v

或者在Linux命令窗口验证：

curl 192.168.170.12:9200/_cat/master?v

输出内容：
id host ip node
CDH9HpfRRmaAN3VBbj4Vow 192.168.170.11 192.168.170.11 node-11

elasticsearch安装和配置，elasticsearch启动报错：can not run elasticsearch as root

博客分类： java蕃薯耀分享Linux elasticsearch process is too lowelasticsearch [3] bootstrap checks failedelasticsearch can not run elasticsearch as rootelasticsearch安装和配置蕃薯耀