jschoubben
6cf7f67a1d
mesh/delivery closed: a newer head of the same pull request
mesh/check checking 6cf7f67a1dfd on 08fbc51af26f
The composer finds a listen's machine port in a container mapping that names it on either side (MachineSide). The program's listen 5000 matched the registry container's inner 5000 in 127.0.0.1:5001:5000, so the store's address became the container's loopback side and the program's own port was never opened: the move to 83cd1a3d on 2026-11-08 23:25 UTC cut the artifact store off (issue 1966 note 109). The program now binds 5100, where every machine fetches (the artifact-store alias and the seats' reach agree), and the container serves 5001 inside and out. A row holds that no container names 5100. Undo: revert this commit. Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i
35 lines
1.4 KiB
Go
35 lines
1.4 KiB
Go
package holder
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import "fmt"
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// FindingReadSide is the finding of a store whose read side does not answer through the program.
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const FindingReadSide = "read-side-down"
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// ProbeName is the name the health check lists on each seat: any name answers, an empty list included.
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const ProbeName = Self + "/program"
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// Health is distribution's health check (design 51 *While the program is down*; ADR 0240), run by the runtime each
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// minute outside the program's process: it asks `versions` of each seat it holds through the store's read side, the
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// program's port (front), and answers what failed, naming the program. The finding is written while it fails and
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// cleared once it answers.
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func Health(front Catalog, finding func(kind, subject, words string, raised bool)) (map[string]any, error) {
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answered := map[string]int{}
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for _, seat := range Seats {
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got, err := front.Versions(ProbeName)
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if err != nil {
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words := fmt.Sprintf("the store's read side does not answer %s's versions through distribution's program (port 5100): %v; is the program distribution running?", seat, err)
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if finding != nil {
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finding(FindingReadSide, seat, words, true)
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}
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return nil, fmt.Errorf("%s", words)
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}
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answered[seat] = len(got)
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}
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if finding != nil {
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for _, seat := range Seats {
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finding(FindingReadSide, seat, "", false)
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}
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}
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return map[string]any{"healthy": true, "versions": answered}, nil
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}
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