使用banyandb的standalone模式时,文件是存储到/tmp目录下,有点不方便,还是改回用es吧。
安装es
步骤一:下载和解压Elasticsearch
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.0-linux-x86_64.tar.gz
tar -xzf elasticsearch-7.17.0-linux-x86_64.tar.gz
sudo mv elasticsearch-7.17.0 /usr/local/elasticsearch
步骤二:创建Elasticsearch用户和目录
创建用户和组:
groupadd elasticsearch
useradd -g elasticsearch -d /usr/local/elasticsearch -s /sbin/nologin elasticsearch
设置目录权限:
chown -R elasticsearch:elasticsearch /usr/local/elasticsearch
步骤三:创建Elasticsearch的数据和日志目录
mkdir -p /var/lib/elasticsearch
mkdir -p /var/log/elasticsearch
chown -R elasticsearch:elasticsearch /var/lib/elasticsearch
chown -R elasticsearch:elasticsearch /var/log/elasticsearch
步骤四:创建systemd服务文件
创建一个新的systemd服务文件:
vi /etc/systemd/system/elasticsearch.service
在文件中添加以下内容:
[Unit]
Description=Elasticsearch
Documentation=https://www.elastic.co
Wants=network-online.target
After=network-online.target
[Service]
Type=simple
User=elasticsearch
Group=elasticsearch
ExecStart=/usr/local/elasticsearch/bin/elasticsearch -d
StandardOutput=journal
StandardError=inherit
TimeoutStopSec=20
LimitNOFILE=65536
LimitNPROC=4096
TimeoutStartSec=75
KillMode=process
KillSignal=SIGTERM
Restart=on-failure
WorkingDirectory=/
[Install]
WantedBy=multi-user.target
步骤五:重新加载systemd并启动Elasticsearch
重新加载systemd配置:
systemctl daemon-reload
步骤六:调整vm.max_map_count
检查当前的大小:
sysctl vm.max_map_count
如果小于262144则执行如下步骤
-
打开并编辑 /etc/sysctl.conf 文件:
vi /etc/sysctl.conf
-
在文件末尾添加以下行:
vm.max_map_count=262144
保存并关闭文件。
-
应用配置更改:
sysctl -p
步骤七:限制Elasticsearch的内存
es很吃内存,限制下
vi /usr/local/elasticsearch/config/jvm.options
在文件中找到以下两行,或在文件末尾添加它们:
-Xms4g
-Xmx4g
这表示将最小和最大堆内存都设置为4GB
步骤八:启用并启动Elasticsearch服务
systemctl enable elasticsearch
systemctl start elasticsearch
检查Elasticsearch服务状态:
systemctl status elasticsearch
你应该会看到Elasticsearch服务的运行状态。如果一切正常,Elasticsearch应该已经成功安装并在后台运行。
通过发送HTTP请求验证Elasticsearch是否成功启动:
curl -X GET "localhost:9200/"
你应该会看到Elasticsearch的相关信息,表明它已成功启动并运行。
{
"name" : "node-1",
"cluster_name" : "my-cluster",
"cluster_uuid" : "YiFrowgmQ5OMNVhiBH24Yw",
"version" : {
"number" : "7.17.0",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "bee86328705acaa9a6daede7140defd4d9ec56bd",
"build_date" : "2022-01-28T08:36:04.875279988Z",
"build_snapshot" : false,
"lucene_version" : "8.11.1",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}
将skywalking的存储配置改为es
回到apache-skywalking-apm-bin目录,打开config/application.yml文件,找到以下部分,并进行修改:
storage:
selector: ${SW_STORAGE:elasticsearch}
elasticsearch:
nameSpace: ${SW_NAMESPACE:""}
clusterNodes: ${SW_STORAGE_ES_CLUSTER_NODES:localhost:9200}
protocol: ${SW_STORAGE_ES_HTTP_PROTOCOL:"http"}
connectTimeout: ${SW_STORAGE_ES_CONNECT_TIMEOUT:3000}
socketTimeout: ${SW_STORAGE_ES_SOCKET_TIMEOUT:30000}
user: ${SW_ES_USER:""}
password: ${SW_ES_PASSWORD:""}
trustStorePath: ${SW_STORAGE_ES_SSL_JKS_PATH:""}
trustStorePass: ${SW_STORAGE_ES_SSL_JKS_PASS:""}
dayStep: ${SW_STORAGE_ES_DAY_STEP:1}
indexShardsNumber: ${SW_STORAGE_ES_INDEX_SHARDS_NUMBER:1}
indexReplicasNumber: ${SW_STORAGE_ES_INDEX_REPLICAS_NUMBER:1}
bulkActions: ${SW_STORAGE_ES_BULK_ACTIONS:2000}
flushInterval: ${SW_STORAGE_ES_FLUSH_INTERVAL:10}
concurrentRequests: ${SW_STORAGE_ES_CONCURRENT_REQUESTS:2}
metadataQueryMaxSize: ${SW_STORAGE_ES_QUERY_MAX_SIZE:5000}
segmentQueryMaxSize: ${SW_STORAGE_ES_QUERY_SEGMENT_SIZE:200}
advanced:
- ${SW_STORAGE_ES_ADVANCED:""}
修改完成后重启下:由于之前是直接nohup启动的,所以要先找到进程kill掉,再执行启动命令:
nohup ./bin/oapService.sh start &