commit 66de6f7eb8e2948f6c3849dbca20c7b31969b5b7 Author: Roger Dingledine arma@torproject.org Date: Thu Apr 28 21:06:25 2011 -0400

relays checkpoint their state file twice a day --- changes/bug3012 | 5 +++++ src/or/config.c | 11 ++++++++++- 2 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/changes/bug3012 b/changes/bug3012 new file mode 100644 index 0000000..dfde5fa --- /dev/null +++ b/changes/bug3012 @@ -0,0 +1,5 @@ + o Minor features: + - Relays can go for weeks without writing out their state file. A + relay that crashes would lose its bandwidth history (including + capacity estimate), client country statistics, and so on. Now relays + checkpoint the file at least every 12 hours. Addresses bug 3012. diff --git a/src/or/config.c b/src/or/config.c index 9384b3a..dc24140 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -5122,6 +5122,11 @@ or_state_load(void) /** If writing the state to disk fails, try again after this many seconds. */ #define STATE_WRITE_RETRY_INTERVAL 3600

+/** If we're a relay, how often should we checkpoint our state file even + * if nothing else dirties it? This will checkpoint ongoing stats like + * bandwidth used, per-country user stats, etc. */ +#define STATE_RELAY_CHECKPOINT_INTERVAL (12*60*60) + /** Write the persistent state to disk. Return 0 for success, <0 on failure. */ int or_state_save(time_t now) @@ -5172,7 +5177,11 @@ or_state_save(time_t now) tor_free(fname); tor_free(contents);

- global_state->next_write = TIME_MAX; + if (server_mode(get_options())) + global_state->next_write = now + STATE_RELAY_CHECKPOINT_INTERVAL; + else + global_state->next_write = TIME_MAX; + return 0; }