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Fix bug 1066.

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If all authorities restart at once right before a consensus vote, nobody
will vote about "Running", and clients will get a consensus with no usable
relays. Instead, authorities refuse to build a consensus if this happens.
This commit is contained in:
Karsten Loesing
2009-10-26 19:27:54 -07:00
parent e0b2c84cde
commit 4256a96461
2 changed files with 18 additions and 1 deletions
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src/or/dirvote.c
+14 -1
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@@ -2304,7 +2304,7 @@ static int
dirvote_compute_consensuses(void)
{
/* Have we got enough votes to try? */
int n_votes, n_voters;
int n_votes, n_voters, n_vote_running = 0;
smartlist_t *votes = NULL, *votestrings = NULL;
char *consensus_body = NULL, *signatures = NULL, *votefile;
networkstatus_t *consensus = NULL;
@@ -2324,6 +2324,19 @@ dirvote_compute_consensuses(void)
"%d of %d", n_votes, n_voters/2);
goto err;
}
tor_assert(pending_vote_list);
SMARTLIST_FOREACH(pending_vote_list, pending_vote_t *, v, {
if (smartlist_string_isin(v->vote->known_flags, "Running"))
n_vote_running++;
});
if (!n_vote_running) {
/* See task 1066. */
log_warn(LD_DIR, "Nobody has voted on the Running flag. Generating "
"and publishing a consensus without Running nodes "
"would make many clients stop working. Not "
"generating a consensus!");
goto err;
}
if (!(my_cert = get_my_v3_authority_cert())) {
log_warn(LD_DIR, "Can't generate consensus without a certificate.");