标签:aml elastic lan 内容 process least 添加内容 using reads
这里使用docker进行安装的
docker pull elasticsearch
然后使用
docker run -e ES_JAVA_OPTS="-Xms256m -Xmx265m" -d -p 9200:9200 -p 9300:9300 --name ES01 5acf0e8da90b
进行启动(因为需要很大的内存空间,所以把占用的内存空间限制在256m上)
以上是docker下的安装,注意要安装2.6以下的版本,5x以上的版本连接9300需要在yaml里面做配置
yum -y list java*
yum install -y java-1.8.0-openjdk-devel.x86_64
这里有个地方要注意,要选择 要带有-devel的安装,因为这个安装的是jdk,而那个不带-devel的安装完了其实是jre。
java -version
查看已安装的jdk版本,当出现如下输出表示安装成功。/usr/lib/jvm
vi /etc/profile
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.181-3.b13.el6_10.x86_64 export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export PATH=$PATH:$JAVA_HOME/bin
:wq
退出vim编辑器,然后使用命令更新配置source /etc/profile
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.2.zip
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.2.zip.sha512
shasum -a 512 -c elasticsearch-6.3.2.zip.sha512
unzip elasticsearch-6.3.2.zip
cd elasticsearch-6.3.2/
-bash: shasum: command not found
解决方案:在CentOS上,“shasum”被称为“sha1sum”,运行下面命令修复此问题
ln -s /usr/bin/sha1sum /usr/bin/shasum
sha1sum: invalid option -- 'a'
解决方案:
yum install -y perl-Digest-SHA
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000c5330000, 986513408, 0) failed; error='Cannot allocate memory' (errno=12)
解决方案:调小启动内存,如果512m还是不行的话,就得要再往下调了
[root@iZwz9ahuk6xeihs1n3gqy5Z elasticsearch-6.3.2]# vi config/jvm.options
#-Xms2g
#-Xmx2g
-Xms512m
-Xmx512m
无法以root权限启动
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
解决方案:创建一个非root用户并赋予目录该用户权限,再启动
#root身份 groupadd es
useradd es -g es -p es
chown es:es ${elasticsearch_HOME}/ #存放elasticsearch的目录
su - es #切换到es用户下
${elasticsearch_HOME}/bin/elasticsearch #启动elasticsearch
ERROR: [4] bootstrap checks failed
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
[2]: max number of threads [1024] for user [e] 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]
[4]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
解决方案:
【5.1】【5.2】
#root身份
vi /etc/security/limits.conf
#文件末尾添加内容(*也是要加上去)
* soft nofile 65536
* hard nofile 131072
* soft nproc 4096
* hard nproc 4096
【5.3】
#root身份
sysctl -w vm.max_map_count=262144
vim /etc/sysctl.conf #让配置永久生效
#文件末尾添加内容
vm.max_map_count=262144
【5.4】
Centos6不支持SecComp,而ES6默认bootstrap.system_call_filter为true
vim config/elasticsearch.yml
禁用:在elasticsearch.yml中配置bootstrap.system_call_filter为false,注意要在Memory下面:
#注意在":"后面需要空格
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
还有一些其他的错误,比如防火墙没开放端口
OpenJDK 64-Bit
问题二:OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
报错原因:某些软件包启动的时候默认启用 -XX:+AssumeMP导致
解决方案:在jvm.optipons配置文件添加 -XX:-AssumeMP
启动失败,检查没有通过,报错
[2018-05-18T17:44:59,658][INFO ][o.e.b.BootstrapChecks? ? ] [gFOuNlS] bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
编辑 /etc/security/limits.conf,追加以下内容;
* soft nofile 65536
* hard nofile 65536
此文件修改后需要重新登录用户,才会生效
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
编辑 /etc/sysctl.conf,追加以下内容:
vm.max_map_count=655360
保存后,执行:
sysctl -p
重启成功
编辑 /etc/sysctl.conf,追加以下内容:
vm.max_map_count=655360
保存后,执行:
sysctl -p
在此感谢两位博主
https://blog.csdn.net/feng12345zi/article/details/80367907
https://www.cnblogs.com/jj81/p/9404576.html
elasticSearch 起步(CentOS7 success)
标签:aml elastic lan 内容 process least 添加内容 using reads
原文地址:https://www.cnblogs.com/lovestart/p/11332143.html