Solana Ping Service

Functions Provided

• High frequently send transactions and record results
• provide http API service
• generate a report and submit to slack periodically
• actively check confirmation losses and send an alert to slack
• Spam Filter of slack alert

Server Setup

API Service

API service for getting the results of ping service. Use APIServer: Enabled: true to turn on in in config-{cluster}.yaml.

PingService

This is similar to "solana ping" tool in solana tool but can do concurrent rpc query. It send transactions to rpc endpoint and wait for transactions is confirmed. Use PingServiceEnabled: true to turn on in config-{cluster}.yaml.

RetensionService

Use Retension: Enabled: true in config.yaml to turn on. Default is Off. Clean database data periodically.

ReportService

Use Report: Enabled:true in config-{cluster}.yaml to turn on. ping-api service supports sedning report & alert to both slack and discord. Use Report: Slack: Report: Enabled:true to turn on Slack Report. This sends summary of ping result to a slack channel periodically. Use Report: Slack: Alert: Enabled:true to turn on Slack Alert. This will send alert when a event is triggered. See Alert Spam Filter for more info. Use Report: Discord: Report: Enabled:true to turn on Discord Report. Use Report: Discord: Alert: Enabled:true to turn on Discord Alert.

• Example:Run only API Query Server In config.yaml ServerSetup:

(config.yaml)
Retension:
 Enabled: false
(config-{cluster}.yaml)
PingEnabled: true     
Report:
 Enabled: true
 Slack:
  Report:
   Enabled: true
  Alert: 
   Enabled: true   
 Discord:
  Enabled: true
  Report:
   Enabled: false
  Alert: 
   Enabled: true                  

Installation

• download executable file
• or build from source
  • Install golang
  • clone from github.com/solana-labs/solana-ping-api
  • go mod tidy to download packages
  • go build
• mkdir ~/.config/ping-api
• put config.yaml in ~/.config/ping-api/config.yaml

Using GCP Database

• Install & Setup google cloud CLI
• download Cloud SQL Auth proxy
• chmod +x cloud_sql_proxy
• run cloud_sql_proxy

setup recommendation

• mkdir ~/ping-api-server
• cp scripts in script to ~/ping-api-server
• make solana-ping-api system service
  • create a /etc/systemd/system/solana-ping-api.service
  • remember to reload by sudo systemctl daemon-reload

[Unit]
Description=Solana Ping API Service
After=network.target
StartLimitIntervalSec=1

[Service]
Type=simple
Restart=always
RestartSec=30
User=sol
LogRateLimitIntervalSec=0
ExecStart=/home/sol/ping-api-server/solana-ping-restart.sh

[Install]
WantedBy=multi-user.target

• put executable file in ~/ping-api-server
• cp config.yaml.samle to ~/ping-api-server/config.yaml and modify it
• use cp-to-real-config.sh to copy config.yaml to ~/.config/ping-api/config.yaml
• start service by sudo sysmtemctl start solana-ping-api.service
• you can check log by sudo tail -f /var/log/syslog | grep ping-api

Alert Spam Filter

Alert Spam Filter could be changed frequently. The updte to date (4/18/2022) setting is as below.

    Threshold increases when
    Loss > 20 % -> new threshold = 50% -> send alert
    Loss > 50 % -> new threshold = 75% -> send alert
    Loss > 75 % -> new threshold = 100% -> send alert
    Threshold decreases when
    Loss > 75 % to < 75%  -> new threshold = 75% -> send alert
    Loss > 50 % to < 50%  -> new threshold = 50% -> send alert
    Loss > 20 % to < 20%  -> new threshold = 20% -> NOT send alert