Fixed an error in previous commit where an empty servermap would throw an exception...

[tahoe-lafs/tahoe-lafs.git] / src / allmydata / immutable / filenode.py

diff --git a/src/allmydata/immutable/filenode.py b/src/allmydata/immutable/filenode.py
index f138311da234d105d833c9a00a29aa10bf59103e..0bcacb001440960e8042fef8b9e62679f1cfda4e 100644 (file)
--- a/src/allmydata/immutable/filenode.py
+++ b/src/allmydata/immutable/filenode.py
@@ -122,7 +122,8 @@ class CiphertextFileNode:
                     servers_responding.union(ur.sharemap.iterkeys())
                     prr.data['servers-responding'] = list(servers_responding)
                     prr.data['count-shares-good'] = len(sm)
-                    prr.data['count-good-share-hosts'] = len(reduce(set.union, sm.itervalues()))
+                    prr.data['count-good-share-hosts'] = len(reduce(set.union, 
+                                                       sm.itervalues(), set()))
                     is_healthy = bool(len(sm) >= verifycap.total_shares)
                     is_recoverable = bool(len(sm) >= verifycap.needed_shares)
                     prr.set_healthy(is_healthy)