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哪个网站可以做奖状,昌吉建设网站,如何检测网站死链,外包加工网是正规的吗https://www.elastic.co/cn/downloads/past-releases?productelasticsearch 以下是基于 elasticsearch-6.4.0.tar.gz 和 elasticsearch-6.4.0.rpm 的离线安装详细步骤#xff1a; 一、环境准备 1. 系统更新和依赖安装 # 更新系统 sudo yum update -y# 安装必要依赖 sudo y…https://www.elastic.co/cn/downloads/past-releases?productelasticsearch以下是基于elasticsearch-6.4.0.tar.gz和elasticsearch-6.4.0.rpm的离线安装详细步骤一、环境准备1. 系统更新和依赖安装# 更新系统sudoyum update -y# 安装必要依赖sudoyuminstall-ywgetvimnet-tools2. 安装JavaElasticsearch 6.4.0需要JDK 8# 方法一在线安装sudoyuminstall-y java-1.8.0-openjdk-devel# 方法二离线安装如果有JDK 8的rpm包# sudo rpm -ivh jdk-8uXXX-linux-x64.rpm# 验证Java版本java -version3. 创建专用用户# 创建elasticsearch用户和组sudogroupaddelasticsearchsudouseradd-g elasticsearch elasticsearch二、RPM包离线安装方式1. 准备RPM包将elasticsearch-6.4.0.rpm上传到服务器例如/tmp/elasticsearch-6.4.0.rpm2. 安装RPM包# 安装RPM包sudorpm-ivh /tmp/elasticsearch-6.4.0.rpm# 或者强制安装如果遇到依赖问题sudorpm-ivh --nodeps /tmp/elasticsearch-6.4.0.rpm3. 查看安装位置# RPM安装后的目录结构/usr/share/elasticsearch# 程序目录/etc/elasticsearch# 配置文件目录/var/lib/elasticsearch# 数据目录默认/var/log/elasticsearch# 日志目录默认三、TAR包离线安装方式1. 上传和解压# 上传tar.gz包到服务器# 例如/opt/software/elasticsearch-6.4.0.tar.gz# 创建安装目录sudomkdir-p /usr/local/elasticsearch# 解压到安装目录sudotar-zxvf /opt/software/elasticsearch-6.4.0.tar.gz -C /usr/local/elasticsearch/# 创建软链接sudoln-s /usr/local/elasticsearch/elasticsearch-6.4.0 /usr/local/elasticsearch/current# 更改所有权sudochown-R elasticsearch:elasticsearch /usr/local/elasticsearch/2. 创建必要目录# 创建数据、日志和配置文件目录sudomkdir-p /var/lib/elasticsearchsudomkdir-p /var/log/elasticsearchsudomkdir-p /etc/elasticsearch# 更改所有权sudochown-R elasticsearch:elasticsearch /var/lib/elasticsearchsudochown-R elasticsearch:elasticsearch /var/log/elasticsearchsudochown-R elasticsearch:elasticsearch /etc/elasticsearch# 复制配置文件sudocp-r /usr/local/elasticsearch/current/config/* /etc/elasticsearch/sudochown-R elasticsearch:elasticsearch /etc/elasticsearch四、配置Elasticsearch1. 主配置文件# 编辑配置文件sudovi/etc/elasticsearch/elasticsearch.yml2. 基本配置# 集群名称cluster.name:my-cluster# 节点名称node.name:node-1# 数据存储路径根据安装方式调整path.data:/var/lib/elasticsearch# 日志存储路径path.logs:/var/log/elasticsearch# 配置文件路径path.conf:/etc/elasticsearch# 绑定地址network.host:0.0.0.0# HTTP端口http.port:9200# 初始主节点cluster.initial_master_nodes:[node-1]# 安全配置6.x默认关闭安全# bootstrap.memory_lock: true# discovery.type: single-node # 单节点模式3. JVM配置# 编辑JVM配置文件sudovi/etc/elasticsearch/jvm.options根据服务器内存调整建议不超过物理内存的50%# 最小堆大小 -Xms2g # 最大堆大小 -Xmx2g # 其他参数可选 -XX:UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction75 -XX:UseCMSInitiatingOccupancyOnly五、系统配置优化1. 修改系统限制# 编辑limits.confsudotee-a /etc/security/limits.confEOF * soft nofile 65536 * hard nofile 65536 * soft nproc 4096 * hard nproc 4096 elasticsearch soft memlock unlimited elasticsearch hard memlock unlimited EOF# 针对elasticsearch用户的特定配置sudotee-a /etc/security/limits.d/20-elasticsearch.confEOF elasticsearch soft nofile 65536 elasticsearch hard nofile 65536 elasticsearch soft nproc 4096 elasticsearch hard nproc 4096 elasticsearch soft memlock unlimited elasticsearch hard memlock unlimited EOF2. 修改sysctl配置# 编辑sysctl.confsudotee-a /etc/sysctl.confEOF vm.max_map_count262144 fs.file-max65536 net.core.somaxconn1024 net.ipv4.tcp_max_syn_backlog1024 EOF# 应用配置sudosysctl -p六、创建服务启动脚本对于TAR包安装方式1. 创建systemd服务文件sudotee/usr/lib/systemd/system/elasticsearch.serviceEOF [Unit] DescriptionElasticsearch Documentationhttp://www.elastic.co Wantsnetwork-online.target Afternetwork-online.target [Service] Userelasticsearch Groupelasticsearch EnvironmentES_HOME/usr/local/elasticsearch/current EnvironmentES_PATH_CONF/etc/elasticsearch EnvironmentPID_DIR/var/run/elasticsearch EnvironmentES_SD_NOTIFYtrue EnvironmentFile-/etc/sysconfig/elasticsearch WorkingDirectory/usr/local/elasticsearch/current ExecStart/usr/local/elasticsearch/current/bin/elasticsearch \ -p ${PID_DIR}/elasticsearch.pid \ --quiet \ -Edefault.path.logs${LOG_DIR} \ -Edefault.path.data${DATA_DIR} \ -Edefault.path.conf${ES_PATH_CONF} # StandardOutput is configured to redirect to journalctl since # some error messages may be logged in standard output before # elasticsearch logging system is initialized. Elasticsearch # stores its logs in /var/log/elasticsearch and does not use # journalctl by default. If you also want to enable journalctl # logging, you can simply remove the quiet option from ExecStart. StandardOutputjournal StandardErrorinherit # Specifies the maximum file descriptor number that can be opened by this process LimitNOFILE65536 # Specifies the maximum number of processes LimitNPROC4096 # Specifies the maximum size of virtual memory LimitASinfinity # Specifies the maximum file size LimitFSIZEinfinity # Disable timeout logic and wait until process is stopped TimeoutStopSec0 # SIGTERM signal is used to stop the Java process KillSignalSIGTERM # Send the signal only to the JVM rather than its control group KillModeprocess # Java process is never killed SendSIGKILLno # When a JVM receives a SIGTERM signal it exits with code 143 SuccessExitStatus143 [Install] WantedBymulti-user.target EOF2. 创建环境变量文件sudotee/etc/sysconfig/elasticsearchEOF ES_HOME/usr/local/elasticsearch/current CONF_DIR/etc/elasticsearch DATA_DIR/var/lib/elasticsearch LOG_DIR/var/log/elasticsearch PID_DIR/var/run/elasticsearch ES_USERelasticsearch ES_GROUPelasticsearch ES_STARTUP_SLEEP_TIME5 EOF# 创建PID目录sudomkdir-p /var/run/elasticsearchsudochownelasticsearch:elasticsearch /var/run/elasticsearch七、启动和测试1. 重新加载systemd配置sudosystemctl daemon-reload2. 设置开机自启sudosystemctlenableelasticsearch3. 启动服务sudosystemctl start elasticsearch4. 查看状态sudosystemctl status elasticsearch5. 查看日志# 查看实时日志sudojournalctl -f -u elasticsearch# 或者查看文件日志sudotail-f /var/log/elasticsearch/my-cluster.log6. 验证安装# 等待10-30秒后测试curl-X GEThttp://localhost:9200/# 查看集群健康状态curl-X GEThttp://localhost:9200/_cat/health?v# 查看节点信息curl-X GEThttp://localhost:9200/_cat/nodes?v八、防火墙配置如果需要# 开放9200和9300端口sudofirewall-cmd --permanent --add-port9200/tcpsudofirewall-cmd --permanent --add-port9300/tcpsudofirewall-cmd --reload# 或者关闭防火墙测试环境sudosystemctl stop firewalldsudosystemctl disable firewalld九、常见问题解决1. 无法启动问题排查# 检查配置文件语法/usr/local/elasticsearch/current/bin/elasticsearch -t# 前台运行调试sudo-u elasticsearch /usr/local/elasticsearch/current/bin/elasticsearch# 检查错误日志sudotail-n100/var/log/elasticsearch/*.log2. 内存锁定失败# 检查是否启用了内存锁定grepmemory_lock/etc/elasticsearch/elasticsearch.yml# 临时解决方案测试环境# 在elasticsearch.yml中添加# bootstrap.memory_lock: false3. 文件描述符不足# 检查当前限制ulimit-Hnulimit-Sn十、安装插件离线方式如果需要安装插件需要先下载插件包# 例如安装IK分词器# 1. 下载对应版本的IK插件# 2. 解压到plugins目录sudomkdir-p /usr/local/elasticsearch/current/plugins/iksudounzipelasticsearch-analysis-ik-6.4.0.zip -d /usr/local/elasticsearch/current/plugins/ik/sudochown-R elasticsearch:elasticsearch /usr/local/elasticsearch/current/plugins/ik注意事项版本兼容性确保Java版本与Elasticsearch 6.4.0兼容JDK 8内存分配根据服务器内存合理分配JVM堆大小目录权限确保elasticsearch用户对数据、日志目录有读写权限网络配置生产环境建议绑定到内网IP数据备份定期备份数据目录