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pickup worker events, and free them.

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exponential backoff for continuously failing zones.


git-svn-id: file:///svn/unbound/trunk@4479 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2018-01-31 12:33:19 +00:00
parent 10cd092a78
commit c834b5eecd
4 changed files with 36 additions and 1 deletions
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3
daemon/daemon.c
View file

@ -695,6 +695,8 @@ daemon_cleanup(struct daemon* daemon)
daemon->respip_set = NULL;
views_delete(daemon->views);
daemon->views = NULL;
auth_zones_delete(daemon->env->auth_zones);
daemon->env->auth_zones = NULL;
/* key cache is cleared by module desetup during next daemon_fork() */
daemon_remote_clear(daemon->rc);
for(i=0; i<daemon->num; i++)
@ -728,7 +730,6 @@ daemon_delete(struct daemon* daemon)
rrset_cache_delete(daemon->env->rrset_cache);
infra_delete(daemon->env->infra_cache);
edns_known_options_delete(daemon->env);
auth_zones_delete(daemon->env->auth_zones);
}
ub_randfree(daemon->rand);
alloc_clear(&daemon->superalloc);

8
daemon/worker.c
View file

@ -1738,6 +1738,14 @@ worker_init(struct worker* worker, struct config_file *cfg,
comm_timer_set(worker->env.probe_timer, &tv);
}
}
/* zone transfer tasks, setup once per process, if any */
if(worker->env.auth_zones
#ifndef THREADS_DISABLED
&& worker->thread_num == 0
#endif
) {
auth_xfer_pickup_initial(worker->env.auth_zones, &worker->env);
}
if(!worker->env.mesh || !worker->env.scratch_buffer) {
worker_delete(worker);
return 0;

17
services/authzone.c
View file

@ -78,6 +78,8 @@
#define AUTH_PROBE_TIMEOUT_STOP 1000 /* msec */
/* auth transfer timeout for TCP connections, in msec */
#define AUTH_TRANSFER_TIMEOUT 10000 /* msec */
/* auth transfer max backoff for failed tranfers and probes */
#define AUTH_TRANSFER_MAX_BACKOFF 86400 /* sec */
/** pick up nextprobe task to start waiting to perform transfer actions */
static void xfr_set_timeout(struct auth_xfer* xfr, struct module_env* env,
@ -5086,6 +5088,21 @@ xfr_set_timeout(struct auth_xfer* xfr, struct module_env* env,
if(xfr->expiry < wait)
xfr->task_nextprobe->next_probe += xfr->expiry;
else xfr->task_nextprobe->next_probe += wait;
if(!failure) xfr->task_nextprobe->backoff = 0;
} else {
if(!failure) {
xfr->task_nextprobe->backoff = 0;
} else {
if(xfr->task_nextprobe->backoff == 0)
xfr->task_nextprobe->backoff = 3;
else xfr->task_nextprobe->backoff *= 2;
if(xfr->task_nextprobe->backoff >
AUTH_TRANSFER_MAX_BACKOFF)
xfr->task_nextprobe->backoff =
AUTH_TRANSFER_MAX_BACKOFF;
}
xfr->task_nextprobe->next_probe +=
xfr->task_nextprobe->backoff;
}
if(!xfr->task_nextprobe->timer) {

9
services/authzone.h
View file

@ -259,6 +259,8 @@ struct auth_nextprobe {
/* module env for this task */
struct module_env* env;
/** increasing backoff for failures */
time_t backoff;
/** Timeout for next probe (for SOA) */
time_t next_probe;
/** timeout callback for next_probe or expiry(if that is sooner).
@ -431,6 +433,13 @@ struct auth_zones* auth_zones_create(void);
int auth_zones_apply_cfg(struct auth_zones* az, struct config_file* cfg,
int setup);
/** initial pick up of worker timeouts, ties events to worker event loop
* @param az: auth zones structure
* @param env: worker env, of first worker that receives the events (if any)
* in its eventloop.
*/
void auth_xfer_pickup_initial(struct auth_zones* az, struct module_env* env);
/**
* Delete auth zones structure
*/