使用Telegraf做夜莺5.1的数据采集

老柴杂货铺 2021-12-09

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夜莺从5.1版本开始，拥抱开源社区，支持OpenTSDB的协议格式，支持Telegraf、Prometheus生态的exporter（也就是说，他们自己不做agent了）。具体落地实践时，建议优先选用Telegraf（all-in-one的架构，运维简单）

一、使用TELEGRAF采集监控数据（https://n9e.gitee.io/quickstart/telegraf/）

1.telegraf下载地址：https://github.com/influxdata/telegraf/releases

2.在centos8.2中安装telegraf(/opt/telegraf/telegraf.conf的内容是个删减版，只是为了让大家快速跑起来，如果要采集更多监控对象，比如mysql、redis、tomcat等,请往下看）

#!/bin/sh
version=1.20.4
tarball=telegraf-${version}_linux_amd64.tar.gz
wget https://dl.influxdata.com/telegraf/releases/$tarball
tar xzvf $tarball
mkdir -p /opt/telegraf
cp -far telegraf-${version}/usr/bin/telegraf /opt/telegraf
cat <<EOF > /etc/telegraf/telegraf.conf
[global_tags]
[agent]
  interval = "10s"
  round_interval = true
  metric_batch_size = 1000
  metric_buffer_limit = 10000
  collection_jitter = "0s"
  flush_interval = "10s"
  flush_jitter = "0s"
  precision = ""
  hostname = ""
  omit_hostname = false
  logfile = "/var/log/telegraf.log"
[[outputs.opentsdb]]
  host = "http://127.0.0.1"
  port = 19000
  http_batch_size = 50
  http_path = "/opentsdb/put"
  debug = false
  separator = "_"
[[inputs.cpu]]
  percpu = true
  totalcpu = true
  collect_cpu_time = false
  report_active = true
[[inputs.disk]]
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
[[inputs.diskio]]
[[inputs.kernel]]
[[inputs.mem]]
[[inputs.processes]]
[[inputs.system]]
  fielddrop = ["uptime_format"]
[[inputs.net]]
  ignore_protocol_stats = true
EOF




cat <<EOF > /etc/systemd/system/telegraf.service
[Unit]
Description="telegraf"
After=network.target
[Service]
Type=simple
ExecStart=/opt/telegraf/telegraf  --config-directory /etc/telegraf/
WorkingDirectory=/opt/telegraf
Restart=on-failure
SuccessExitStatus=0
LimitNOFILE=65536
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=telegraf
[Install]
WantedBy=multi-user.target
EOF




systemctl daemon-reload
systemctl enable telegraf
systemctl restart telegraf
systemctl status telegraf

3.使用telegraf采集mysql、redis、tomcat

cat <<EOF >  /etc/telegraf/mysql.conf 




[[inputs.mysql]]
  interval = "5m"
  servers = ["root:root@tcp(127.0.0.1:3306)/?tls=false"]
  perf_events_statements_digest_text_limit  = 120
  perf_events_statements_limit              = 250
  perf_events_statements_time_limit         = 86400
  table_schema_databases                    = [""]
  gather_table_schema                       = false




  gather_process_list                       = true




  gather_info_schema_auto_inc               = true




  gather_slave_status                       = true
  gather_binary_logs                        = false
  gather_table_io_waits                     = false
  gather_table_lock_waits                   = false
  gather_index_io_waits                     = false
  gather_event_waits                        = false
  gather_file_events_stats                  = false
  interval_slow                             = "30m"




[[inputs.tcp_listener]]
  service_address = ":8094"
  allowed_pending_messages = 10000
  max_tcp_connections = 250
  data_format = "influx"




[[inputs.exec]]
    commands = ["/tmp/test.sh"]
    timeout = "5m"
    data_format = "influx"
    name_suffix = "_mycollector"




[[inputs.redis]]
  ## specify servers via a url matching:
  ##  [protocol://][:password]@address[:port]
  ##  e.g.
  servers = ['tcp://127.0.0.1:6379']
 EOF

4.其中inputs.exec是可以写脚本（shell或者python都可以）获取自己需要的监控数据，简单示例如下（注意标签中如果不包含数据会导致写入失败）

cat <<EOF > /tmp/test.sh
 #!/bin/sh
echo "sinoc estab=27,closed=40"
EOF

数据库

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使用Telegraf做夜莺5.1的数据采集

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