Module: kamailio Branch: 5.2 Commit: c9ad77e7d0ff7fb6ff4b9763cdea9b84f5ba739e URL: https://github.com/kamailio/kamailio/commit/c9ad77e7d0ff7fb6ff4b9763cdea9b8… Author: Henning Westerholt &lt;hw(a)skalatan.de&gt; Committer: Henning Westerholt &lt;hw(a)skalatan.de&gt; Date: 2020-06-07T09:20:48Z dispatcher: don't reset load table when adding/removing a destination or reloading the list - manual backport from 4099a6caf856c9a --- Modified: src/modules/dispatcher/dispatch.c --- Diff: https://github.com/kamailio/kamailio/commit/c9ad77e7d0ff7fb6ff4b9763cdea9b8… Patch: https://github.com/kamailio/kamailio/commit/c9ad77e7d0ff7fb6ff4b9763cdea9b8… --- diff --git a/src/modules/dispatcher/dispatch.c b/src/modules/dispatcher/dispatch.c index 4561649ebc..77294c7782 100644 --- a/src/modules/dispatcher/dispatch.c +++ b/src/modules/dispatcher/dispatch.c @@ -851,7 +851,7 @@ int ds_load_list(char *lfile) /* Update list - should it be sync'ed? */ _ds_list_nr = setn; *crt_idx = *next_idx; - ds_ht_clear_slots(_dsht_load); + ds_log_sets(); return 0; @@ -1096,7 +1096,6 @@ int ds_load_db(void) /* update data - should it be sync'ed? */ _ds_list_nr = setn; *crt_idx = *next_idx; - ds_ht_clear_slots(_dsht_load); ds_log_sets(); @@ -1587,22 +1586,24 @@ int ds_load_replace(struct sip_msg *msg, str *duid) break; } } + /* old destination has not been found: has been removed meanwhile? */ if(olddst == -1) { - ds_unlock_cell(_dsht_load, &msg->callid->body); - LM_ERR("old destination address not found for [%d, %.*s]\n", set, + LM_WARN("old destination address not found for [%d, %.*s]\n", set, it->duid.len, it->duid.s); - return -1; - } + } if(newdst == -1) { + /* new destination has not been found: has been removed meanwhile? */ ds_unlock_cell(_dsht_load, &msg->callid->body); LM_ERR("new destination address not found for [%d, %.*s]\n", set, duid->len, duid->s); - return -1; + return -2; } ds_unlock_cell(_dsht_load, &msg->callid->body); ds_del_cell(_dsht_load, &msg->callid->body); - DS_LOAD_DEC(idx, olddst); + + if(olddst != -1) + DS_LOAD_DEC(idx, olddst); if(ds_load_add(msg, idx, set, newdst) < 0) { LM_ERR("unable to replace destination load [%.*s / %.*s]\n", duid->len, @@ -2310,6 +2311,7 @@ int ds_manage_routes(sip_msg_t *msg, ds_select_state_t *rstate) int ds_update_dst(struct sip_msg *msg, int upos, int mode) { + int ret; socket_info_t *sock = NULL; sr_xavp_t *rxavp = NULL; sr_xavp_t *lxavp = NULL; @@ -2322,6 +2324,7 @@ int ds_update_dst(struct sip_msg *msg, int upos, int mode) } } +next_dst: rxavp = xavp_get(&ds_xavp_dst, NULL); if(rxavp == NULL || rxavp->val.type != SR_XTYPE_XAVP) { LM_DBG("no xavp with previous destination record\n"); @@ -2369,12 +2372,18 @@ int ds_update_dst(struct sip_msg *msg, int upos, int mode) return 1; } if(upos == DS_USE_NEXT) { - if(ds_load_replace(msg, &lxavp->val.v.s) < 0) { - LM_ERR("cannot update load distribution\n"); - return -1; + ret = ds_load_replace(msg, &lxavp->val.v.s); + switch(ret) { + case 0: + break; + case -2: + LM_ERR("cannot update load with %.*s, skipping dst.\n", lxavp->val.v.s.len, lxavp->val.v.s.s); + goto next_dst; + default: + LM_ERR("cannot update load distribution\n"); + return -1; } } - return 1; }