* released 1.1.4
* made rise/fall/interval time configurable
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willy tarreau
parent
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e47c8d7279
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@ -1,9 +1,9 @@
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H A - P r o x y
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---------------
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version 1.1.1
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version 1.1.4
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willy tarreau
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2002/03/13
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2002/03/25
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================
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| Introduction |
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@ -320,7 +320,14 @@ de connexion TCP toutes les 2 secondes, avec 3 essais pour d
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un serveur en panne, 2 pour le déclarer utilisable. Un serveur hors
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d'usage ne sera pas utilisé dans le processus de répartition de charge
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interne. Pour activer la surveillance, ajouter le mot clé 'check' à la
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fin de la déclaration du serveur.
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fin de la déclaration du serveur. Il est possible de spécifier
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l'intervalle (en millisecondes) séparant deux tests du serveur par le
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paramètre "inter", le nombre d'échecs acceptés par le paramètre "fall",
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et le nombre de succès avant reprise par le paramètre "rise".
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Les paramètres non précisés prennent les valeurs suivantes par défaut :
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- inter : 2000
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- rise : 2
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- fall : 3
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Exemple : même que précédemment avec surveillance
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-------
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63
haproxy.c
63
haproxy.c
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@ -13,6 +13,9 @@
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*
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* ChangeLog :
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*
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* 2002/03/25
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* - released 1.1.4
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* - made rise/fall/interval time configurable
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* 2002/03/22
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* - released 1.1.3
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* - fixed a bug : cr_expire and cw_expire were inverted in CL_STSHUT[WR]
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@ -99,8 +102,8 @@
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#include <linux/netfilter_ipv4.h>
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#endif
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#define HAPROXY_VERSION "1.1.3"
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#define HAPROXY_DATE "2002/03/22"
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#define HAPROXY_VERSION "1.1.4"
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#define HAPROXY_DATE "2002/03/25"
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/* this is for libc5 for example */
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#ifndef TCP_NODELAY
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@ -136,9 +139,9 @@
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/* FIXME: this should be user-configurable */
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#define CHK_CONNTIME 2000
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#define CHK_INTERVAL 2000
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#define FALLTIME 3
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#define RISETIME 2
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#define DEF_CHKINTR 2000
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#define DEF_FALLTIME 3
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#define DEF_RISETIME 2
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/* how many bits are needed to code the size of an int (eg: 32bits -> 5) */
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#define INTBITS 5
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@ -323,6 +326,8 @@ struct server {
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char *id; /* just for identification */
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struct sockaddr_in addr; /* the address to connect to */
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int health; /* 0->rise-1 = bad; rise->rise+fall-1 = good */
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int rise, fall; /* time in iterations */
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int inter; /* time in milliseconds */
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int result; /* 0 = connect OK, -1 = connect KO */
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int curfd; /* file desc used for current test, or -1 if not in test */
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};
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@ -2712,7 +2717,8 @@ int process_chk(struct task *t) {
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fdtab[fd].state = FD_STCONN; /* connection in progress */
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FD_SET(fd, StaticWriteEvent); /* for connect status */
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fd_insert(fd);
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tv_delayfrom(&t->expire, &now, CHK_CONNTIME);
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/* FIXME: we allow up to <inter> for a connection to establish, but we should use another parameter */
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tv_delayfrom(&t->expire, &now, s->inter);
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task_queue(t); /* restore t to its place in the task list */
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return tv_remain(&now, &t->expire);
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}
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@ -2726,16 +2732,16 @@ int process_chk(struct task *t) {
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if (!s->result) { /* nothing done */
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//fprintf(stderr, "process_chk: 6\n");
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tv_delayfrom(&t->expire, &now, CHK_INTERVAL);
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tv_delayfrom(&t->expire, &now, s->inter);
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task_queue(t); /* restore t to its place in the task list */
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return tv_remain(&now, &t->expire);
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}
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/* here, we have seen a failure */
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if (s->health > FALLTIME)
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if (s->health > s->rise)
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s->health--; /* still good */
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else {
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if (s->health == FALLTIME && !(mode & MODE_QUIET))
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if (s->health == s->rise && !(mode & MODE_QUIET))
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Warning("server %s DOWN.\n", s->id);
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s->health = 0; /* failure */
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@ -2743,7 +2749,8 @@ int process_chk(struct task *t) {
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}
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//fprintf(stderr, "process_chk: 7\n");
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tv_delayfrom(&t->expire, &now, CHK_CONNTIME);
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/* FIXME: we allow up to <inter> for a connection to establish, but we should use another parameter */
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tv_delayfrom(&t->expire, &now, s->inter);
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}
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else {
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//fprintf(stderr, "process_chk: 8\n");
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@ -2751,25 +2758,25 @@ int process_chk(struct task *t) {
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if (s->result > 0) { /* good server detected */
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//fprintf(stderr, "process_chk: 9\n");
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s->health++; /* was bad, stays for a while */
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if (s->health >= FALLTIME) {
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if (s->health == FALLTIME && !(mode & MODE_QUIET))
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if (s->health >= s->rise) {
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if (s->health == s->rise && !(mode & MODE_QUIET))
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Warning("server %s UP.\n", s->id);
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s->health = FALLTIME + RISETIME -1; /* OK now */
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s->health = s->rise + s->fall - 1; /* OK now */
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s->state |= SRV_RUNNING;
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}
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s->curfd = -1; /* no check running anymore */
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//FD_CLR(fd, StaticWriteEvent);
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fd_delete(fd);
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tv_delayfrom(&t->expire, &now, CHK_INTERVAL);
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tv_delayfrom(&t->expire, &now, s->inter);
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}
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else if (s->result < 0 || tv_cmp2_ms(&t->expire, &now) <= 0) {
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//fprintf(stderr, "process_chk: 10\n");
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/* failure or timeout detected */
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if (s->health > FALLTIME)
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if (s->health > s->rise)
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s->health--; /* still good */
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else {
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if (s->health == FALLTIME && !(mode & MODE_QUIET))
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if (s->health == s->rise && !(mode & MODE_QUIET))
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Warning("server %s DOWN.\n", s->id);
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s->health = 0; /* failure */
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@ -2778,7 +2785,7 @@ int process_chk(struct task *t) {
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s->curfd = -1;
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//FD_CLR(fd, StaticWriteEvent);
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fd_delete(fd);
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tv_delayfrom(&t->expire, &now, CHK_INTERVAL);
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tv_delayfrom(&t->expire, &now, s->inter);
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}
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/* if result is 0 and there's no timeout, we have to wait again */
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}
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@ -3380,8 +3387,11 @@ int readcfgfile(char *file) {
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newsrv->id = strdup(args[1]);
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newsrv->addr = *str2sa(args[2]);
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newsrv->state = SRV_RUNNING; /* early server setup */
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newsrv->health = FALLTIME; /* up, but will fall down at first failure */
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newsrv->curfd = -1; /* no health-check in progress */
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newsrv->inter = DEF_CHKINTR;
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newsrv->rise = DEF_RISETIME;
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newsrv->fall = DEF_FALLTIME;
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newsrv->health = newsrv->rise; /* up, but will fall down at first failure */
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cur_arg = 3;
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while (*args[cur_arg]) {
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if (!strcmp(args[cur_arg], "cookie")) {
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@ -3389,6 +3399,19 @@ int readcfgfile(char *file) {
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newsrv->cklen = strlen(args[cur_arg + 1]);
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cur_arg += 2;
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}
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else if (!strcmp(args[cur_arg], "rise")) {
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newsrv->rise = atol(args[cur_arg + 1]);
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newsrv->health = newsrv->rise;
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cur_arg += 2;
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}
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else if (!strcmp(args[cur_arg], "fall")) {
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newsrv->fall = atol(args[cur_arg + 1]);
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cur_arg += 2;
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}
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else if (!strcmp(args[cur_arg], "inter")) {
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newsrv->inter = atol(args[cur_arg + 1]);
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cur_arg += 2;
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}
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else if (!strcmp(args[cur_arg], "check")) {
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struct task *t;
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t->process = process_chk;
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t->context = newsrv;
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tv_delayfrom(&t->expire, &now, CHK_INTERVAL); /* check this every ms */
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if (curproxy->state != PR_STDISABLED) {
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tv_delayfrom(&t->expire, &now, newsrv->inter); /* check this every ms */
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task_queue(t);
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task_wakeup(&rq, t);
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}
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cur_arg += 1;
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}
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