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feat: update healthcheck to consider index age #2

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Merged
trevor-e merged 2 commits into from
Feb 17, 2026
Merged

feat: update healthcheck to consider index age #2

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3ac1532
feat: update healthcheck to consider index age
trevor-e Feb 17, 2026
34c22da
fix
trevor-e Feb 17, 2026
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12 changes: 7 additions & 5 deletions server/server.go
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Original file line number Diff line number Diff line change
Expand Up @@ -201,14 +201,16 @@ func (s *server) ServeHelp(ctx context.Context, w http.ResponseWriter, r *http.R
http.Redirect(w, r, "/search", 303)
}

const MaxIndexAge = 3*time.Hour + 30*time.Minute

func (s *server) ServeHealthcheck(w http.ResponseWriter, r *http.Request) {
// All backends must have (at some point) reported an index age for us to
// report as healthy.
// TODO: report as unhealthy if a backend goes down after we've spoken to
// it.
for _, bk := range s.bk {
if bk.I.IndexTime.IsZero() {
http.Error(w, fmt.Sprintf("unhealthy backend '%s' '%s'\n", bk.Id, bk.Addr), 500)
http.Error(w, fmt.Sprintf("unhealthy backend '%s' '%s': no index loaded\n", bk.Id, bk.Addr), 500)
return
}
if age := time.Since(bk.I.IndexTime); age > MaxIndexAge {
http.Error(w, fmt.Sprintf("unhealthy backend '%s' '%s': index is %v old\n", bk.Id, bk.Addr, age.Truncate(time.Second)), 500)
return
}
}
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