随着Skywalking 6.0 GA版本的发布,Skywalking终于支持Elasticsearch 6.x版本,本文做为搭建Skywalking 6.0集群系列文章的第一篇介绍下Elasticsearch 6.6集群的搭建。java
IP | cluster.name | node.name |
---|---|---|
10.130.10.11 | es_log | es_1 |
10.130.10.12 | es_log | es_2 |
10.130.10.13 | es_log | es_3 |
wget -c -P /tmp https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u202-b08/OpenJDK8U-jre_x64_linux_hotspot_8u202b08.tar.gz mkdir /usr/java;\ tar xf /tmp/OpenJDK8U-jre_x64_linux_hotspot_8u202b08.tar.gz -C /usr/java;\ rm -rf /usr/java/default;\ ln -s /usr/java/jdk8u202-b08-jre /usr/java/default;\ tee -a /etc/profile << 'EOF' export JAVA_HOME=/usr/java/default export PATH=$JAVA_HOME/bin:$PATH EOF
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch;\ tee /etc/yum.repos.d/elasticsearch.repo << 'EOF' [elasticsearch-6.x] name=Elasticsearch repository for 6.x packages baseurl=https://artifacts.elastic.co/packages/6.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md EOF
yum install elasticsearch -y
cat /proc/sys/kernel/pid_max
cat /proc/sys/fs/file-max
mkdir /etc/systemd/system/elasticsearch.service.d;\ cat > /etc/systemd/system/elasticsearch.service.d/override.conf << 'EOF' [Service] Environment=JAVA_HOME=/usr/java/default LimitMEMLOCK=infinity LimitNOFILE=204800 LimitNPROC=4096 EOF
不要超过可用 RAM 的 50%node
Lucene 能很好利用文件系统的缓存,它是经过系统内核管理的。若是没有足够的文件系统缓存空间,性能会受到影响。 此外,专用于堆的内存越多意味着其余全部使用 doc values 的字段内存越少
不要超过 32 GBlinux
若是堆大小小于 32 GB,JVM 能够利用指针压缩,这能够大大下降内存的使用:每一个指针 4 字节而不是 8 字节
sed -i '/-Xms2g/c\-Xms3g' /etc/elasticsearch/jvm.options;\ sed -i '/-Xmx2g/c\-Xmx3g' /etc/elasticsearch/jvm.options
集群名称,默认是elasticsearch,建议修改成更明确的名称,好比es_loggit
节点名,默认随机指定一个name列表中名字,建议修改成明确的名称,好比es_1,es_2,es_3github
主机IP缓存
数据目录bash
日志目录curl
节点发现jvm
mkdir -p /home/elasticsearch/data /home/elasticsearch/logs;\ chown -R elasticsearch. /home/elasticsearch;\ sed -i '/cluster.name/c\cluster.name: es_log' /etc/elasticsearch/elasticsearch.yml;\ sed -i '/network.host/c\network.host: 0.0.0.0' /etc/elasticsearch/elasticsearch.yml;\ sed -i '/path.data/c\path.data: /home/elasticsearch/data' /etc/elasticsearch/elasticsearch.yml;\ sed -i '/path.logs/c\path.logs: /home/elasticsearch/logs' /etc/elasticsearch/elasticsearch.yml;\ sed -i '/discovery.zen.ping.unicast.hosts/c\discovery.zen.ping.unicast.hosts: ["10.130.10.11","10.130.10.12","10.130.10.13"]' /etc/elasticsearch/elasticsearch.yml
#节点-1 sed -i '/node.name/c\node.name: es_1' /etc/elasticsearch/elasticsearch.yml #节点-2 sed -i '/node.name/c\node.name: es_2' /etc/elasticsearch/elasticsearch.yml #节点-3 sed -i '/node.name/c\node.name: es_3' /etc/elasticsearch/elasticsearch.yml
systemctl enable elasticsearch;\ systemctl daemon-reload;\ systemctl start elasticsearch;\ systemctl status elasticsearch
firewall-cmd --add-port=9200/tcp --permanent;\ firewall-cmd --add-port=9300/tcp --permanent;\ firewall-cmd --reload
#查看已安装插件 /usr/share/elasticsearch/bin/elasticsearch-plugin list #安装IK /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.6.0/elasticsearch-analysis-ik-6.6.0.zip
#查看节点信息 curl -X GET http://localhost:9200/_nodes #打开文件数信息 curl -X GET http://localhost:9200/_nodes/stats/process?filter_path=**.max_file_descriptors #集群健康状态 curl -X GET http://localhost:9200/_cat/health?v #查看集群索引数 curl -X GET http://localhost:9200/_cat/indices?v #查看磁盘分配状况 curl -X GET http://localhost:9200/_cat/allocation?v #查看集群节点 curl -X GET http://localhost:9200/_cat/nodes?v #查看集群其余信息 curl -X GET http://localhost:9200/_cat