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| author | David Goulet <dgoulet@torproject.org> | 2021-10-20 09:59:04 -0400 |
|---|---|---|
| committer | David Goulet <dgoulet@torproject.org> | 2021-10-20 10:00:03 -0400 |
| commit | 7a8108ea87320da3008e65747baa43c1bbcf13c2 (patch) | |
| tree | 380e171d32b66081529847027a2eb4415061df10 /src/feature/stats/rephist.h | |
| parent | 3752a71ded247cd6b32e0ee6c3dfaf906a63a915 (diff) | |
| download | tor-7a8108ea87320da3008e65747baa43c1bbcf13c2.tar.gz tor-7a8108ea87320da3008e65747baa43c1bbcf13c2.zip | |
relay: Overload state on DNS timeout is now X% over Y secs
With this commit, we will only report a general overload state if we've
seen more than X% of DNS timeout errors over Y seconds. Previous
behavior was to report when a single timeout occured which is really too
small of a threshold.
The value X is a consensus parameters called
"overload_dns_timeout_scale_percent" which is a scaled percentage
(factor of 1000) so we can represent decimal points for X like 0.5% for
instance. Its default is 1000 which ends up being 1%.
The value Y is a consensus parameters called
"overload_dns_timeout_period_secs" which is the time period for which
will gather DNS errors and once over, we assess if that X% has been
reached ultimately triggering a general overload signal.
Closes #40491
Signed-off-by: David Goulet <dgoulet@torproject.org>
Diffstat (limited to 'src/feature/stats/rephist.h')
| -rw-r--r-- | src/feature/stats/rephist.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/feature/stats/rephist.h b/src/feature/stats/rephist.h index 7f414de4c8..6918ed18c2 100644 --- a/src/feature/stats/rephist.h +++ b/src/feature/stats/rephist.h @@ -89,6 +89,8 @@ uint64_t rep_hist_get_n_dns_request(int type); void rep_hist_note_dns_request(int type); void rep_hist_note_dns_error(int type, uint8_t error); +void rep_hist_consensus_has_changed(const networkstatus_t *ns); + extern uint64_t rephist_total_alloc; extern uint32_t rephist_total_num; #ifdef TOR_UNIT_TESTS |