elasticsearch 7.12 的 elasticsearch.service 文件

清疚 2023-01-13 06:05 196阅读 0赞

os: centos 7.6.1810  
es: elasticsearch Version 7.12.0 (Build 778cc7261dfdd1)  
使用 rpm 方式安装的 elasticsearch ()

# ls -l 
    -rw-r--r--  1 root root 327593346 Apr 15 13:18 elasticsearch-7.12.0-x86_64.rpm
    
    # cat /usr/lib/systemd/system/elasticsearch.service

[Unit]
    Description=Elasticsearch
    Documentation=https://www.elastic.co
    Wants=network-online.target
    After=network-online.target
    
    [Service]
    Type=notify
    RuntimeDirectory=elasticsearch
    PrivateTmp=true
    Environment=ES_HOME=/usr/share/elasticsearch
    Environment=ES_PATH_CONF=/etc/elasticsearch
    Environment=PID_DIR=/var/run/elasticsearch
    Environment=ES_SD_NOTIFY=true
    EnvironmentFile=-/etc/sysconfig/elasticsearch
    
    WorkingDirectory=/usr/share/elasticsearch
    
    User=elasticsearch
    Group=elasticsearch
    
    ExecStart=/usr/share/elasticsearch/bin/systemd-entrypoint -p ${PID_DIR}/elasticsearch.pid --quiet
    
    # 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.
    StandardOutput=journal
    StandardError=inherit
    
    # Specifies the maximum file descriptor number that can be opened by this process
    LimitNOFILE=65535
    
    # Specifies the maximum number of processes
    LimitNPROC=4096
    
    # Specifies the maximum size of virtual memory
    LimitAS=infinity
    
    # Specifies the maximum file size
    LimitFSIZE=infinity
    
    # Disable timeout logic and wait until process is stopped
    TimeoutStopSec=0
    
    # SIGTERM signal is used to stop the Java process
    KillSignal=SIGTERM
    
    # Send the signal only to the JVM rather than its control group
    KillMode=process
    
    # Java process is never killed
    SendSIGKILL=no
    
    # When a JVM receives a SIGTERM signal it exits with code 143
    SuccessExitStatus=143
    
    # Allow a slow startup before the systemd notifier module kicks in to extend the timeout
    TimeoutStartSec=75
    
    [Install]
    WantedBy=multi-user.target
    
    # Built for packages-7.12.0 (packages)