[tor-commits] [sbws/maint-1.1] fix: relaylist: Stop measuring relays not in the consenus

[juga@xxxxxxxxxxxxxx]

commit a050110db59d136f6f46809c4b18fe487012e546
Author: juga0 <juga@xxxxxxxxxx>
Date:   Mon Dec 21 16:24:50 2020 +0000

    fix: relaylist: Stop measuring relays not in the consenus
    
    as this might cause many circuit errors.
    They're already added to the generator.
    Also adapt the number in test_init_relays.
    
    Closes: #40037.
    
    Happy solstice! :)
---
 sbws/lib/relaylist.py            | 17 +++++------------
 tests/unit/lib/test_relaylist.py |  8 ++++----
 2 files changed, 9 insertions(+), 16 deletions(-)

diff --git a/sbws/lib/relaylist.py b/sbws/lib/relaylist.py
index 8a07ce7..640e3eb 100644
--- a/sbws/lib/relaylist.py
+++ b/sbws/lib/relaylist.py
@@ -14,7 +14,7 @@ from ..globals import (
     MAX_RECENT_PRIORITY_LIST_COUNT,
     MEASUREMENTS_PERIOD
 )
-from ..util import timestamp, timestamps
+from ..util import timestamps
 
 log = logging.getLogger(__name__)
 
@@ -250,12 +250,6 @@ class Relay:
     def relay_recent_priority_list_count(self):
         return len(self.relay_recent_priority_list)
 
-    def is_old(self):
-        """Whether the last consensus seen for this relay is older than the
-        measurement period.
-        """
-        return timestamp.is_old(self.last_consensus_timestamp)
-
     # XXX: tech-debt: replace `_desc` attr by a a `dequee` of the last
     # descriptors seen for this relay and the timestamp.
     def update_server_descriptor(self, server_descriptor):
@@ -417,11 +411,10 @@ class RelayList:
                 # already added to the new list.
                 new_relays_dict.pop(fp)
 
-            # If the relay is not in the current consensus but is not "old"
-            # yet, add it to the new list of relays too, though its timestamp,
-            # router status and descriptor can't be updated.
-            elif not r.is_old():
-                new_relays.append(r)
+            # In #30727, the relay that is not in the current conensus but is
+            # not "old", was added to the new list of relays too.
+            # In #40037 we think it should not be measured, as it might cause
+            # many circuit errors. It's already added to the generator.
             # Otherwise, don't add it to the new list of relays.
             # For debugging, count the old relays that will be discarded.
             else:
diff --git a/tests/unit/lib/test_relaylist.py b/tests/unit/lib/test_relaylist.py
index 31673ba..399d897 100644
--- a/tests/unit/lib/test_relaylist.py
+++ b/tests/unit/lib/test_relaylist.py
@@ -51,7 +51,7 @@ def test_init_relays(
     assert 6505 == 6433 + len(added_fps)
     # The calculated min bw for the second hop
     assert 2120000 == relay_list._exit_min_bw
-    assert 200000 == relay_list._non_exit_min_bw
+    assert 210000 == relay_list._non_exit_min_bw
 
     # Five days later plus 1 second.
     # The first consensus timestamp will get removed.
@@ -69,10 +69,10 @@ def test_init_relays(
     removed_fps = fps.difference(fps_5days_later)
     # The number of relays will be the number of relays in the cosensus plus
     # the added ones minus the removed ones.
-    assert 6925 == 6505 + len(added_fps) - len(removed_fps)
+    assert 6596 == 6505 + len(added_fps) - len(removed_fps)
     # The calculated min bw for the second hop
-    assert 2790000 == relay_list._exit_min_bw
-    assert 110000 == relay_list._non_exit_min_bw
+    assert 2800000 == relay_list._exit_min_bw
+    assert 150000 == relay_list._non_exit_min_bw
 
 
 def test_increment_recent_measurement_attempt(args, conf, controller):



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