I fear we may get a ZODB cache inconsistency after a client disconnect.
The current reconnection protocol essentially works as follows:
* "ClientStorage" detects a broken ZEO connection
and starts a reconnect thread
* The reconnect thread tries to reconnect to the ZEO server
and starts (ZEO client) cache verification, when it succeeds.
* All no longer valid "oid, version, tid" entries are
invalidated in the client and ZODB (Connection) caches.
The potential inconsistency occurs because the ZODB (Connection) cache
may contain objects not in the ZEO client cache. Even if invalid meanwhile,
they are not checked and invalidated during the cache verification phase.
For more information about ZODB, see the ZODB Wiki:
ZODB-Dev mailing list - ZODB-Dev@zope.org