Elasticsearch启动https
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参考技术A 这里不改名,直接接受文件的默认名elastic-stack-ca.p12,然后输入密码: aaaaaa并记住。执行完生成以下文件
接着用如下命令来生成一个新的证书
这里需要输入前面生成CA证书的密码: aaaaaa
输入CA证书密码后,接受新证书的默认文件名,然后为新证书elastic-certificates.p12添加新密码: bbbbbb
完成后,在相同路径下多了一个elastic-certificates.p12证书文件
注意,这里需要输入elastic-stack-ca.p12证书的密码
config/elasticsearch.yml文件添加以下配置:
重启ES
为了能让Kibana访问带有https的Elasticsearch。我们也需要做相应的配置,给config/kibana.yml添加如下配置
并且把es的host改成https
elasticsearch启动错误整理
一、elasticsearch错误复现
(一)、环境
配置环境
OS:CentOS 7.4 64bit
elasticsearch版本:5.4.1
hostname:elk-1-1
ip:10.18.43.170
java版本:java -version "1.8.0_181"
(二)、错误复现
首先要获取必须的软件包
wget -P /var/ftp/ https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.4.1.tar.gz
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.tar.gz"
环境配置
sed -ri ‘/^SELINUX/cSELINUX=disabled‘ /etc/selinux/config
setenforce 0
firewall-cmd --permanent --add-service=http
firewall-cmd --permanent --add-service=https
firewall-cmd --permanent --add-port=9200/tcp
firewall-cmd --permanent --add-port=9300/tcp
firewall-cmd --reload
JDK配置
[[email protected]1-1 ~]# tar xf jdk-8u181-linux-x64.tar.gz -C /usr/local/
[[email protected]-1-1 ~]# ln -s /usr/local/jdk1.8.0_181 /usr/local/java
[[email protected]-1-1 ~]# cat /etc/profile.d/java.sh
JAVA_HOME=/usr/local/java
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME PATH
[[email protected]-1-1 ~]# source /etc/profile
[[email protected]-1-1 ~]# env | grep JAVA
JAVA_HOME=/usr/local/java
[[email protected]-1-1 ~]# java -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)
elasticsearch配置
useradd elk
su - elk
mv /tmp/elasticsearch-5.4.1.tar.gz /home/elk
tar xf elasticsearch-5.4.1.tar.gz
配置文件elasticsearch-5.4.1/config/elasticsearch.yml
[[email protected]1-1 ~]$ egrep "^[^#$]" elasticsearch-5.4.1/config/elasticsearch.yml
cluster.name: my-elk
node.name: elk1
path.data: /tmp/data
path.logs: /tmp/logs
bootstrap.memory_lock: false
network.host: 0.0.0.0
http.port: 9200
elasticsearch不允许root用启动,我使用给他专门创建的用户elk用来启动它
[[email protected]1-1 ~]$ elasticsearch-5.4.1/bin/elasticsearch -d
(三)、日志输出
[2018-07-27T19:19:16,089][ERROR][o.e.b.Bootstrap ] [elk1] node validation exception
[3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: memory locking requested for elasticsearch process but memory is not locked
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
二、解决方法
错误一:
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
解决方法:
打开/etc/security/limits.conf文件,在末尾添加以下两行并保存:
* soft nofile 65536 //*表示任意用户,这里是elasticsearch报的错,也可以直接填运行elk的用户;
* hard nofile 131072
错误二:
[2]: memory locking requested for elasticsearch process but memory is not locked
解决方法:
修改elasticsearch.yml文件
bootstrap.memory_lock : false
错误三:
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
解决方法:
修改内核配置/etc/sysctl.d/99-sysctl.conf添加vm.max_map_count=262144
sysctl -w vm.max_map_count=262144
sysctl -p
错误四:
os::commit_memory(0x00000001006cd000, 77824, 0) failed; error=’Cannot allocate memory’ (errno=12)
解决方法:
提供内存不足,增大主机内存或者减小elasticsearch的内存大小
[[email protected]1-1 ~]$ grep -v "^#" elasticsearch-5.4.1/config/jvm.options |grep -v "^$"
-Xms2g
-Xmx2g
-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=75
-XX:+UseCMSInitiatingOccupancyOnly
-XX:+DisableExplicitGC
-XX:+AlwaysPreTouch
-server
-Xss1m
-Djava.awt.headless=true
-Dfile.encoding=UTF-8
-Djna.nosys=true
-Djdk.io.permissionsUseCanonicalPath=true
-Dio.netty.noUnsafe=true
-Dio.netty.noKeySetOptimization=true
-Dio.netty.recycler.maxCapacityPerThread=0
-Dlog4j.shutdownHookEnabled=false
-Dlog4j2.disable.jmx=true
-Dlog4j.skipJansi=true
-XX:+HeapDumpOnOutOfMemoryError
修改完成之后,建议退出当前登录用户,在重新登录,然后在重新启动elasticsearch,就可以一了,(注:tar包和unzip包,都是不允许elasticsearch程序让root用户来运行的,我们必须提前创建一个用户!)
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