Getting postgres connection errors

Rails
#1

I am getting these types of errors quite frequently and am wondering
what may be causing them or how to fix them.

PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “T”,
length 1409286191
PGError: lost synchronization with server: got message type “e”,
length 980640103
PGError: lost synchronization with server: got message type “e”,
length 980640103
PGError: lost synchronization with server: got message type “e”,
length 980640103

They tend to happen after the daemon is running for a while (a day or
two). Needless to say once this happens the daemon is not working
anymore.

Any help in diagnosing and solving this problem would be much
appreciated.

#2

This problem started with the recent update to rails. I also think it
may have to do with this statement
ActiveRecord::Base.connection_pool.clear_stale_cached_connections!

The postgres mailing list tells me these errors have to do with
threading in libpq.