novox/mesh-host
3
0
Fork 0
Code Issues Pull Requests 2 Releases Wiki Activity

A delivered host knows it is the delivered one

Browse Source 
novox/hq 04-ISSUES/163. The host asks after every apply whether a newer
host is delivered than the one running, and asked with the link-time
version stamp — which every delivered host carries as "development
build", because the version comes from where the binary sits now (0142).
So a delivered host never matched the newest delivered version, stood
aside on every push for ever, and because standing aside cancels the
report, the mesh never heard from it again.

Measured on two machines: each push produced "host <v> is delivered;
standing aside" for the version already running, then "applied, and could
not tell the mesh: reporting: context canceled". A machine restarting its
host on every push and reporting nothing, reading as healthy.

Asked with the running version now. Half of 0142 was applied to the
report and the known-good record and not here; this is the other half.
This commit is contained in:
jschoubben
2026-09-30 13:46:51 +02:00
parent f576287b51
commit 1028193c8a
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmd/mesh-host/main.go
+6 -1
View File
@@ -1054,7 +1054,12 @@ func runLink(ctx context.Context, opts options) error {
// standing before this machine leaves the one it is on (novox/hq design 28, task 5.2). // standing before this machine leaves the one it is on (novox/hq design 28, task 5.2).
adoptDeliveredMembership(identity.Path(opts.state), &mine, say) adoptDeliveredMembership(identity.Path(opts.state), &mine, say)
switch next, waiting, err := upgrade.Successor(upgrade.VersionsDir(""), version); { // Asked with the version this host is RUNNING, read from where it sits — not the link-time
// stamp, which every delivered host carries as "development build". Asked with the stamp,
// a delivered host never matched the newest delivered version, so it stood aside on every
// push for ever, and standing aside cancels the report, so the mesh never heard from it
// again (novox/hq 04-ISSUES/163).
switch next, waiting, err := upgrade.Successor(upgrade.VersionsDir(""), runningVersion()); {
case err != nil: case err != nil:
// Said, not fatal. A host that cannot read the delivered versions is still running this // Said, not fatal. A host that cannot read the delivered versions is still running this
// machine correctly; what it has lost is the ability to be replaced. // machine correctly; what it has lost is the ability to be replaced.