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LouisLam 2021-07-09 14:14:03 +08:00
parent 04ec91d7a9
commit 3bdf174e90
11 changed files with 418 additions and 85 deletions
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65
server/model/monitor.js
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@ -141,71 +141,52 @@ class Monitor extends BeanModel {
}
/**
*
* Uptime with calculation
* Calculation based on:
* https://www.uptrends.com/support/kb/reporting/calculation-of-uptime-and-downtime
* @param duration : int Hours
*/
static async sendUptime(duration, io, monitorID, userID) {
let sec = duration * 3600;
let downtimeList = await R.getAll(`
SELECT duration, time
SELECT duration, time, status
FROM heartbeat
WHERE time > DATE('now', ? || ' hours')
AND status = 0
AND monitor_id = ? `, [
-duration,
monitorID
]);
let downtime = 0;
let uptime = 0;
let total = 0;
let uptime;
if (downtimeList.length === 0) {
for (let row of downtimeList) {
let value = parseInt(row.duration)
let time = row.time
for (let row of downtimeList) {
let value = parseInt(row.duration)
let time = row.time
// Handle if heartbeat duration longer than the target duration
// e.g. Heartbeat duration = 28hrs, but target duration = 24hrs
if (value <= sec) {
downtime += value;
} else {
let trim = dayjs.utc().diff(dayjs(time), 'second');
// Handle if heartbeat duration longer than the target duration
// e.g. Heartbeat duration = 28hrs, but target duration = 24hrs
if (value > sec) {
let trim = dayjs.utc().diff(dayjs(time), 'second');
value = sec - trim;
value = sec - trim;
if (value < 0) {
value = 0;
}
downtime += value;
if (value < 0) {
value = 0;
}
}
uptime = (sec - downtime) / sec;
if (uptime < 0) {
uptime = 0;
total += value;
if (row.status === 0) {
downtime += value;
}
} else {
// This case for someone who are not running UptimeKuma 24x7.
// If there is no heartbeat in this time range, use last heartbeat as reference
// If is down, uptime = 0
// If is up, uptime = 1
}
let lastHeartbeat = await R.findOne("heartbeat", " monitor_id = ? ORDER BY time DESC", [
monitorID
]);
uptime = (total - downtime) / total;
if (lastHeartbeat) {
if (lastHeartbeat.status === 1) {
uptime = 1;
} else {
uptime = 0;
}
} else {
// No heartbeat is found, assume 100%
uptime = 1;
}
if (uptime < 0) {
uptime = 0;
}
io.to(userID).emit("uptime", monitorID, duration, uptime);