Preload time.strptime() to avoid multi thread problem on couch backend get_docs() method (#5449).

1 files changed, 11 insertions, 0 deletions

diff --git a/common/src/leap/soledad/common/couch.py b/common/src/leap/soledad/common/couch.py
index 1bb84985..8e8613a1 100644
--- a/common/src/leap/soledad/common/couch.py
+++ b/common/src/leap/soledad/common/couch.py
@@ -1401,6 +1401,17 @@ class CouchDatabase(CommonBackend):
                  in matching doc_ids order.
         :rtype: iterable
         """
+        # Workaround for:
+        #
+        #   http://bugs.python.org/issue7980
+        #   https://leap.se/code/issues/5449
+        #
+        # python-couchdb uses time.strptime, which is not thread safe. In
+        # order to avoid the problem described on the issues above, we preload
+        # strptime here by evaluating the conversion of an arbitrary date.
+        # This will not be needed when/if we switch from python-couchdb to
+        # paisley.
+        time.strptime('Mar 4 1917', '%b %d %Y')
         # spawn threads to retrieve docs
         threads = []
         for doc_id in doc_ids: