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WIP/MINOR: stick-tables: Remove localupdate identifier from stick-tables to only rely on update

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This commit is contained in:
Christopher Faulet 2025-11-18 13:44:35 +01:00
parent 6485418925
commit e9162ee569
3 changed files with 11 additions and 27 deletions
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1
include/haproxy/stick_table-t.h
View File

@ -226,7 +226,6 @@ struct stktable {
struct eb_root updates; /* head of sticky updates sequence tree, uses updt_lock */
struct mt_list *pend_updts; /* list of updates to be added to the update sequence tree, one per thread-group */
unsigned int update; /* uses updt_lock */
unsigned int localupdate; /* uses updt_lock */
struct tasklet *updt_task;/* tasklet responsible for pushing the pending updates into the tree */
THREAD_ALIGN(64);

36
src/peers.c
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@ -1541,17 +1541,17 @@ static inline struct stksess *peer_update_stksess_lookup(struct shared_table *st
if (!eb) {
eb = eb32_first(&st->table->updates);
if (!eb || (eb->key == st->last_pushed)) {
st->last_pushed = st->table->localupdate;
st->last_pushed = st->table->update;
return NULL;
}
}
/* if distance between the last pushed and the retrieved key
* is greater than the distance last_pushed and the local_update
* this means we are beyond localupdate.
* is greater than the distance last_pushed and the update
* this means we are beyond update.
*/
if ((eb->key - st->last_pushed) > (st->table->localupdate - st->last_pushed)) {
st->last_pushed = st->table->localupdate;
if ((eb->key - st->last_pushed) > (st->table->update - st->last_pushed)) {
st->last_pushed = st->table->update;
return NULL;
}
@ -2787,7 +2787,7 @@ int peer_send_msgs(struct appctx *appctx,
repl = -1;
goto end;
}
must_send = (peer->learnstate == PEER_LR_ST_NOTASSIGNED) && (st->last_pushed != st->table->localupdate);
must_send = (peer->learnstate == PEER_LR_ST_NOTASSIGNED) && (st->last_pushed != st->table->update);
HA_RWLOCK_RDUNLOCK(STK_TABLE_UPDT_LOCK, &st->table->updt_lock);
if (must_send) {
@ -2982,21 +2982,7 @@ static inline void init_connected_peer(struct peer *peer, struct peers *peers)
/* Init cursors */
for (st = peer->tables; st ; st = st->next) {
st->last_get = st->last_acked = 0;
HA_RWLOCK_WRLOCK(STK_TABLE_UPDT_LOCK, &st->table->updt_lock);
/* if st->update appears to be in future it means
* that the last acked value is very old and we
* remain unconnected a too long time to use this
* acknowledgement as a reset.
* We should update the protocol to be able to
* signal the remote peer that it needs a full resync.
* Here a partial fix consist to set st->update at
* the max past value.
*/
if ((int)(st->table->localupdate - st->update) < 0)
st->update = st->table->localupdate + (2147483648U);
st->last_pushed = st->update;
HA_RWLOCK_WRUNLOCK(STK_TABLE_UPDT_LOCK, &st->table->updt_lock);
st->last_pushed = HA_ATOMIC_LOAD(&st->update);
st->ts = NULL;
st->bucket = 0;
st->resync_end = TICK_ETERNITY;
@ -3701,7 +3687,7 @@ static void __process_running_peer_sync(struct task *task, struct peers *peers,
/* Awake session if there is data to push */
for (st = peer->tables; st ; st = st->next) {
if (st->last_pushed != st->table->localupdate) {
if (st->last_pushed != st->table->update) {
/* wake up the peer handler to push local updates */
update_to_push = 1;
/* There is no need to send a heartbeat message
@ -3890,7 +3876,7 @@ static void __process_stopping_peer_sync(struct task *task, struct peers *peers,
/* current peer connection is active and established
* wake up all peer handlers to push remaining local updates */
for (st = peer->tables; st ; st = st->next) {
if (st->last_pushed != st->table->localupdate) {
if (st->last_pushed != st->table->update) {
appctx_wakeup(peer->appctx);
break;
}
@ -4339,8 +4325,8 @@ static int peers_dump_peer(struct buffer *msg, struct appctx *appctx, struct pee
st->flags, (unsigned long long)st->remote_data);
chunk_appendf(&trash, "\n last_acked=%u last_pushed=%u last_get=%u update=%u",
st->last_acked, st->last_pushed, st->last_get, st->update);
chunk_appendf(&trash, "\n table:%p id=%s update=%u localupdate=%u refcnt=%u",
t, t->id, t->update, t->localupdate, t->refcnt);
chunk_appendf(&trash, "\n table:%p id=%s update=%u refcnt=%u",
t, t->id, t->update, t->refcnt);
if (flags & PEERS_SHOW_F_DICT) {
chunk_appendf(&trash, "\n TX dictionary cache:");
count = 0;

1
src/stick_table.c
View File

@ -845,7 +845,6 @@ struct task *stktable_add_pend_updates(struct task *t, void *ctx, unsigned int s
cur_tgid = 0;
stksess->seen = 0;
stksess->upd.key = ++table->update;
table->localupdate = table->update;
eb32_delete(&stksess->upd);
/* even though very unlikely, it seldom happens that the entry