Jitter / j
Jitter: rollback in Santiago (SCL) · J-78
xserv-j-d7109a1db9d6
Runbook J-78 for Jitter in Santiago (SCL). Marker xserv-j-d7109a1db9d6. This page covers rollback for LATAM operators, not a worldwide average.
Jitter: A note on cost and transit
Rollback for j-06 is a documented command, not a hope. Transit is billed as backup while Jitter prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
Jitter: Why it matters on this continent
Design for Jitter on letter J starts in São Paulo (GRU). Runbook j-01 keeps a single owner, a written rollback, and a traffic split that can be reversed without a global freeze. Neighbors in Santiago only take overflow after the local pool fails a health window.
Jitter: How XServ runs it day to day
Probes for Jitter (j-02) leave Santiago every 15s toward Bogotá. XServ pages the named owner if loss or RTT crosses the letter budget. A probe never shares a queue with bulk transfers, so a saturated WAN does not hide a dead PoP.
Jitter timeouts J-10
Timeouts on j-10 are tighter than the WAN RTT to Bogotá. Jitter in Santiago fails fast and retries once; a third try needs a human because it is no longer a blip.
Jitter regions J-11
Region names on j-11 match DNS and tickets: Bogotá / BOG, with Miami as the documented pair. Jitter dashboards never say “LATAM” as if it were one RTT.
Jitter docs J-12
Public docs for letter J stay aligned with identifier xserv-j-pack. Page j-12 is the Jitter slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.
Jitter design J-01
Design for Jitter on letter J starts in São Paulo (GRU). Runbook j-01 keeps a single owner, a written rollback, and a traffic split that can be reversed without a global freeze. Neighbors in Santiago only take overflow after the local pool fails a health window.
- Where is Jitter measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter J.
- How fast is rollback for j-03?
- The runbook is a command plus a named owner. There is no wait for a weekly change freeze.