--- id: "bug-1549" status: "fixed" status_updated: "2026-09-24" status_note: "" component: "apiserver" severity: "unknown" timestamp: "2026-08-12T12:59:31Z" last_seen: "2026-09-19T09:00:00Z" occurrences: 2 files: ["src/controller/apiserver.c (apiserver_job_new_fun / apiserver_push_joblist hook)", "src/frontend/apiserver/backend/clib.go (go_push_handler / handleDataset)"] tags: ["apiserver", "controller", "push-notification", "job-submit", "component-failover-adoption", "task-5.1", "live-e2e-finding"] related: ["bug-1548"] legacy: true --- # bug-1549: Jobs submitted via apiserver REST API (POST /xce/v1/jobs/create) never appear in apiserver's own… ## Description Jobs submitted via apiserver REST API (POST /xce/v1/jobs/create) never appear in apiserver's own job store (GET /xce/v1/jobs / GET /xce/v1/jobs/:id returns empty), even though the job is confirmed genuinely committed on the controller (verified directly via xce_test's `joblist` showing both jobs in PEND state). Reproduced for 2 jobs (one submitted at the moment of a primary kill, one submitted >1 minute after a clean new-primary failover) -- so this is NOT specific to the failover window, appears to be a general gap. By contrast, worker/host-list push (apiserver_push_workers/apiserver_push_workerlist, controller/apiserver.c) DOES work: GET /xce/v1/hosts correctly showed the live-joined worker with real data. ## Environment _Not recorded (migrated from buglog.json)._ ## Reproduction _Not recorded (migrated from buglog.json)._ ## Root cause NOT root-caused (out of task 5.1's boundary). apiserver_job_new_fun is wired as a HOOK_DETAIL_JOB_NEW hook meant to fire apiserver_push_joblist()/apiserver_push_jobarray() after a job commits (apply_committed_entry()); controller logs show zero evidence either way since apiserver.c has no INFO-level success logging on this path (only a WARN on push failure, `push job list to api server %s has problem, rc %d`, which also never appeared). Could be: the hook isn't actually registered/invoked in this build, or apiserver's join isn't registered in c->apiservers[] the push fan-out iterates, or something queue/resreq-specific. Discovered opportunistically while probing bug-1548; not independently isolated from bug-1548 (both could share a root cause -- c->apiservers[] fan-out list membership -- or be unrelated). REVIEW UPDATE (task 5.1 review, 2026-08-12): found the likely direct causal chain, narrowing this from 'could share a root cause or be unrelated' to 'very likely a downstream symptom of bug-1548'. src/controller/apiserver.c's on_apiserver_join() unconditionally calls xce_apiserver_push_jobs(c, ep) (bulk job resync) alongside xce_apiserver_push_workers(c, ep), but ONLY fires when a fresh join is actually processed by the controller. c->apiservers[] (the fan-out list push hooks iterate) is per-process, in-memory-only state -- no WAL/config replication (confirmed zero references outside apiserver.c) -- so a NEW primary starts with an empty registration table until each apiserver instance re-joins against it. If bug-1548 means apiserver's rejoin was never re-issued against the new primary, ctrl-2 never ran on_apiserver_join for it, so neither the bulk resync nor any incremental job push could ever reach apiserver -- cleanly explaining both job1 and job2 being empty. Recommend a fix attempt for bug-1548 be verified against this job-push symptom directly (if fixing the rejoin gap makes GET /xce/v1/jobs start populating correctly, that's confirmation bug-1549 was never an independent issue). TASK 5.2 RE-REPRODUCTION (2026-08-12T13:39:52Z): reproduced a third time in an isolated, apiserver-only (no worker/scheduler) idle-period E2E run -- a job submitted well after a clean failover (jobid 73930919093731328, controller-confirmed via the accepted response) still never appeared in GET /xce/v1/jobs. This occurred in the SAME run where bug-1548's rejoin gap was also independently reconfirmed with a clean negative control, strengthening (not just repeating) the downstream-symptom-of-bug-1548 hypothesis: if apiserver never re-joined the new primary at the application level, c->apiservers[] on ctrl-2 never gained an entry for it, so no push (bulk or incremental) could ever reach it -- independent of whether the underlying job-push wiring itself is otherwise correct. ## Fix FIXED as a downstream symptom of bug-1548 -- confirmed, not just hypothesized. Once apiserver's heartbeat-triggered rejoin (bug-1548's fix) correctly re-issues xcecli_join(HostRole_apiserver) against the new primary, the controller's on_apiserver_join() bulk job resync (xce_apiserver_push_jobs) fires as designed and populates apiserver's local job store. Live E2E re-validation (component-failover-adoption task 6.2): a diagnostic job submitted post-recovery correctly appeared via GET /xce/v1/jobs, with no client-triggered write request required during the outage window. ## Verification _Not recorded (migrated from buglog.json)._ ## References - Related: bug-1548