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fix(election-iomgr-refactor): config replication and RDHUP failover chain

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- cluster.c: fix upgradeConfig handler (standbys apply, not primaries)
- cluster.c: fix raw_pkt_copy opcode peek (read scalar before capn_free)
- config_repl.h: enable CONF_ENABLE_UPGRADE_CONFIG=1
- config_repl.c: use client_ssl_ctx for outgoing config fetch connections
- config_repl.c: after config fetch, run cluster_init_phase2 + find_primary
- join.c: push config to newly-joined standbys on OPCode_join
- myapp.c: schedule fetch_config_from_primary after skipping own election
- ha.c: arm heartbeat timeout watchdog after find_and_connect_to_primary
This commit is contained in:
Rongsong Shen 2026-05-31 02:08:48 +00:00
parent 2f5a738b36
commit fd93997f78
6 changed files with 70 additions and 10 deletions
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14
src/controller/ha.c
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@ -1203,6 +1203,17 @@ apply_role:
INFO("HA FSM: → CTRL_STANDBY (term=%" PRIu64 ", first_boot=%d)",
atomic_load_explicit(&ha->term, memory_order_acquire),
is_first_boot);
/* Trigger async config fetch from primary so standby can load
* cluster_config, establish persistent control channel, and
* participate in RDHUP failover detection. */
#ifndef XCE_TESTING
if (c != NULL) {
extern int fetch_config_from_primary(cluster_t *c);
delay_task_ms(&c->delaymgr, 100, 1,
(delay_task_entry_fn_t)fetch_config_from_primary, c);
}
#endif
}
}
@ -2123,6 +2134,7 @@ int ha_find_and_connect_to_primary(ha_state_t *ha,
ha->voted_for_name, r);
ha->primary_ctrl_fd = fd;
register_fd_with_iomgr(c, fd);
ha_arm_heartbeat_timeout_vtask(ha, c);
return fd;
}
if (fd == -ETIMEDOUT || fd == -EAGAIN) {
@ -2148,6 +2160,7 @@ int ha_find_and_connect_to_primary(ha_state_t *ha,
INFO("HA: Tier 2 connected to '%s'", p2->name);
ha->primary_ctrl_fd = fd;
register_fd_with_iomgr(c, fd);
ha_arm_heartbeat_timeout_vtask(ha, c);
return fd;
}
}
@ -2164,6 +2177,7 @@ int ha_find_and_connect_to_primary(ha_state_t *ha,
INFO("HA: Tier 3 connected to '%s' after backoff", p3->name);
ha->primary_ctrl_fd = fd;
register_fd_with_iomgr(c, fd);
ha_arm_heartbeat_timeout_vtask(ha, c);
return fd;
}
}