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feat(ha-repl-hardening): wire OPCode_walCatchupEntry standby handler (task 2.1)

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Replace stub with ha_apply_wal_catchup_entry() calling apply_wal_entry().
CAS-advance applied_lsn on success; log ERROR and skip on failure.
Standby stays in CTRL_STANDBY throughout. 3 new unit tests.
This commit is contained in:
Rongsong Shen 2026-06-04 15:05:52 +00:00
parent e3ca775f0d
commit 647b88ce57
5 changed files with 251 additions and 1 deletions
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15
src/controller/ha.h
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@ -26,6 +26,8 @@
#include <time.h>
#include "config.h" /* XCE_MAXNAME_LEN, MAX_STANDBYS, etc. */
#include "persist.h" /* persist_t, apply_wal_entry */
#include "typemap.h" /* wal_catchup_entry_t */
#include "xce/cluster.h" /* xce_candidate_t */
#include "zarray.h"
#include "raft/raft.h" /* raft_state_t, raft_init */
@ -265,6 +267,19 @@ int ha_is_primary(const ha_state_t *ha);
*/
int ha_dispatch_gate(ha_state_t *ha, int opcode);
/*
* ha_apply_wal_catchup_entry: apply a single WAL catch-up entry to local
* persistent storage and advance ha->applied_lsn on success.
*
* Called from cluster.c OPCode_walCatchupEntry dispatch handler (Task 2.1).
* On success (rc == 0): applied_lsn advances to entry->lsn+1.
* On error (rc < 0): logs ERROR, returns error; caller skips (Req 3.3).
* applied_lsn is in-memory only — not persisted to disk.
* Requirements: 3.1, 3.2, 3.3, 3.4, 3.5
*/
int ha_apply_wal_catchup_entry(ha_state_t *ha, persist_t *p,
wal_catchup_entry_t *entry);
/* ── HA Config Bootstrap & Term Durability (ha-config-bootstrap spec) ── */
/*