mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-24 12:23:32 +01:00
Compute thresholds for OOS from ConnLimit_ when setting options
This commit is contained in:
parent
5e571900b3
commit
1c0c0022d8
@ -1334,6 +1334,32 @@ options_act_reversible(const or_options_t *old_options, char **msg)
|
||||
connection_mark_for_close(conn);
|
||||
}
|
||||
});
|
||||
|
||||
if (set_conn_limit) {
|
||||
/*
|
||||
* If we adjusted the conn limit, recompute the OOS threshold too
|
||||
*
|
||||
* How many possible sockets to keep in reserve? If we have lots of
|
||||
* possible sockets, keep this below a limit and set ConnLimit_high_thresh
|
||||
* very close to ConnLimit_, but if ConnLimit_ is low, shrink it in
|
||||
* proportion.
|
||||
*
|
||||
* Somewhat arbitrarily, set socks_in_reserve to 5% of ConnLimit_, but
|
||||
* cap it at 64.
|
||||
*/
|
||||
int socks_in_reserve = options->ConnLimit_ / 20;
|
||||
if (socks_in_reserve > 64) socks_in_reserve = 64;
|
||||
|
||||
options->ConnLimit_high_thresh = options->ConnLimit_ - socks_in_reserve;
|
||||
options->ConnLimit_low_thresh = (options->ConnLimit_ / 4) * 3;
|
||||
log_info(LD_GENERAL,
|
||||
"Recomputed OOS thresholds: ConnLimit %d, ConnLimit_ %d, "
|
||||
"ConnLimit_high_thresh %d, ConnLimit_low_thresh %d",
|
||||
options->ConnLimit, options->ConnLimit_,
|
||||
options->ConnLimit_high_thresh,
|
||||
options->ConnLimit_low_thresh);
|
||||
}
|
||||
|
||||
goto done;
|
||||
|
||||
rollback:
|
||||
|
@ -3699,6 +3699,10 @@ typedef struct {
|
||||
|
||||
int ConnLimit; /**< Demanded minimum number of simultaneous connections. */
|
||||
int ConnLimit_; /**< Maximum allowed number of simultaneous connections. */
|
||||
int ConnLimit_high_thresh; /**< start trying to lower socket usage if we
|
||||
* have this many. */
|
||||
int ConnLimit_low_thresh; /**< try to get down to here after socket
|
||||
* exhaustion. */
|
||||
int RunAsDaemon; /**< If true, run in the background. (Unix only) */
|
||||
int FascistFirewall; /**< Whether to prefer ORs reachable on open ports. */
|
||||
smartlist_t *FirewallPorts; /**< Which ports our firewall allows
|
||||
|
Loading…
Reference in New Issue
Block a user