lei.chen/myxce
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat: add --peers to controller for HA peer list and priority election

Browse source 
- myconf_t gains peers_cfg (xce_cluster_config_t) populated from --peers
- controller/main.c: parse --peers host:port,... via argp; ca_cert_path
  auto-derived from workdir/certs/xce.crt (no --ca-cert flag needed)
- cluster_init: derive my_priority from position in peers list (index 0 =
  primary); fall back to 0 when --peers not given (single-node mode)
This commit is contained in:
Rongsong Shen 2026-05-08 04:40:27 +00:00
parent d61f91b99c
commit 59597e105e
10 changed files with 8046 additions and 325 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/controller/cluster.c
View file

@ -640,8 +640,28 @@ int cluster_init(cluster_t* c)
.probe_connect_timeout_ms = HA_DEFAULT_PROBE_CONNECT_TIMEOUT_MS,
.max_promotion_retries = HA_DEFAULT_MAX_PROMOTION_RETRIES,
};
/* my_priority: single-node P1 always uses 0 (highest priority) */
rc = ha_init(&c->ha, &ha_cfg, 0);
/* Derive priority from position in --peers list.
* Index 0 = highest priority (becomes primary on startup).
* If the controller's name is not found in the list, fall back to
* the last index (lowest priority = standby). */
int my_priority = 0;
const xce_cluster_config_t* pcfg = &c->myconf->peers_cfg;
if (pcfg->candidates_count > 0) {
my_priority = pcfg->candidates_count - 1; /* default: last = lowest */
for (int i = 0; i < pcfg->candidates_count; i++) {
if (strncmp(pcfg->candidates[i].hostname,
c->myconf->name,
XCE_MAXHOSTNAME_LEN - 1) == 0) {
my_priority = i;
break;
}
}
INFO("HA peers: %d candidates, my_priority=%d (name=%s)",
pcfg->candidates_count, my_priority, c->myconf->name);
}
rc = ha_init(&c->ha, &ha_cfg, my_priority);
if (rc != 0) {
ERROR("ha_init failed: %d", rc);
persist_fini(&c->persist);