44 строки
1.0 KiB
Go
44 строки
1.0 KiB
Go
package models
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import (
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"context"
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"log"
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"sync"
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"time"
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)
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// HealthTickInterval is exported so focused tests can exercise the same
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// lifecycle with a short interval.
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var HealthTickInterval = time.Minute
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var serverHealthTickerOnce sync.Once
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// StartServerHealthTicker periodically refreshes derived server health. The
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// first production tick is delayed to keep CLI migration paths side-effect
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// free; assignment/pause paths recompute synchronously.
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func StartServerHealthTicker(parent context.Context) {
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serverHealthTickerOnce.Do(func() {
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go func() {
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ticker := time.NewTicker(HealthTickInterval)
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defer ticker.Stop()
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for {
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select {
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case <-parent.Done():
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return
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case <-ticker.C:
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var ids []int64
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if err := DB().Model(&Server{}).Pluck("id", &ids).Error; err != nil {
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log.Printf("server health: list: %v", err)
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continue
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}
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for _, id := range ids {
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if err := HealthForServer(id); err != nil {
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log.Printf("server health %d: %v", id, err)
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}
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}
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}
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}
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}()
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})
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}
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