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authorAndrea Shepard <andrea@persephoneslair.org>2012-06-08 03:00:30 -0700
committerNick Mathewson <nickm@torproject.org>2012-06-08 14:33:16 -0400
commit554ec65ce72966ae319743aea629a562f26748a3 (patch)
tree217fddaafddf05945a22f0b7206be2b04230d4c7 /src/or/routerlist.c
parent167f6f1e966312693a91ecdde4c01a3a2a811e13 (diff)
downloadtor-554ec65ce72966ae319743aea629a562f26748a3.tar
tor-554ec65ce72966ae319743aea629a562f26748a3.tar.gz
Rate-limit 'Weighted bandwidth is 0.000000 ...' message; it can be produced in extreme quantities
Diffstat (limited to 'src/or/routerlist.c')
-rw-r--r--src/or/routerlist.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index c3e6f48a6..3be029b0e 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -1699,7 +1699,7 @@ smartlist_choose_node_by_bandwidth_weights(smartlist_t *sl,
int64_t rand_bw;
double Wg = -1, Wm = -1, We = -1, Wd = -1;
double Wgb = -1, Wmb = -1, Web = -1, Wdb = -1;
- double weighted_bw = 0;
+ double weighted_bw = 0, unweighted_bw = 0;
double *bandwidths;
double tmp = 0;
unsigned int i;
@@ -1826,6 +1826,7 @@ smartlist_choose_node_by_bandwidth_weights(smartlist_t *sl,
bandwidths[node_sl_idx] = weight*this_bw;
weighted_bw += weight*this_bw;
+ unweighted_bw += this_bw;
if (is_me)
sl_last_weighted_bw_of_me = weight*this_bw;
} SMARTLIST_FOREACH_END(node);
@@ -1841,10 +1842,20 @@ smartlist_choose_node_by_bandwidth_weights(smartlist_t *sl,
/* If there is no bandwidth, choose at random */
if (DBL_TO_U64(weighted_bw) == 0) {
/* Don't warn when using bridges/relays not in the consensus */
- if (!have_unknown)
- log_warn(LD_CIRC,
- "Weighted bandwidth is %f in node selection for rule %s",
- weighted_bw, bandwidth_weight_rule_to_string(rule));
+ if (!have_unknown) {
+#define ZERO_BANDWIDTH_WARNING_INTERVAL (15)
+ static ratelim_t zero_bandwidth_warning_limit =
+ RATELIM_INIT(ZERO_BANDWIDTH_WARNING_INTERVAL);
+ char *msg;
+ if ( ( msg = rate_limit_log( &zero_bandwidth_warning_limit,
+ approx_time() ) ) ) {
+ log_warn(LD_CIRC,
+ "Weighted bandwidth is %f in node selection for rule %s "
+ "(unweighted was %f) %s",
+ weighted_bw, bandwidth_weight_rule_to_string(rule),
+ unweighted_bw, msg);
+ }
+ }
tor_free(bandwidths);
return smartlist_choose(sl);
}