Rudder

When upgrading the rudder-server-root on a SLES, it seems it broke something on the client side, for some nodes got corrupted promises (namely missing files)

The output file in the outputs folder on the node side, at this time, is

2014-11-05T10:29:13+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/ncf/common'[0]: Timeout - remote end did not respond with the expected amount of data (received=0, expecting=8). (recv: Resource temporarily unavailable)
2014-11-05T10:29:13+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/ncf/common'[0]: Protocol transaction broken off (1). (ReceiveTransaction: Resource temporarily unavailable)
2014-11-05T10:29:13+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/ncf/common'[0]: Authentication dialogue with '192.168.249.141' failed
2014-11-05T10:29:13+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/ncf/common'[0]: No suitable server responded to hail
2014-11-05T10:31:12+0000    error: /default/update/methods/'update'[0]: Method 'update_action' failed in some repairs
R: @@Common@@log_info@@hasPolicyServer-root@@common-root@@379@@common@@StartRun@@2014-11-05 10:31:15+00:00##8b4a4e31-3241-42bb-be63-8d917d3ee9c7@#Start execution

2014-11-05T10:33:49+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/ncf/common'[0]: Timeout - remote end did not respond with the expected amount of data (received=0, expecting=8). (recv: Resource temporarily unavailable)
2014-11-05T10:35:06+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/cfengine-community/inputs'[0]: Couldn't receive. (recv: Connection reset by peer)
2014-11-05T10:35:06+0000    error: /default/update/methods/'update'/default/update_action/files/'/var/rudder/cfengine-community/inputs'[0]: Failed receive. (ReceiveTransaction: Connection reset by peer)
2014-11-05T10:35:06+0000    error: /default/update/methods/'update'[0]: Method 'update_action' failed in some repairs
2014-11-05T10:35:06+0000    error: Can't stat file '/var/rudder/cfengine-community/inputs/common/1.0/cf-served.cf' for parsing. (stat: No such file or directory)
2014-11-05T10:35:06+0000    error: Policy failed validation with command '"/var/rudder/cfengine-community/bin/cf-promises" -c "/var/rudder/cfengine-community/inputs/promises.cf"'
2014-11-05T10:35:06+0000    error: CFEngine was not able to get confirmation of promises from cf-promises, so going to failsafe
2014-11-05T10:35:06+0000    error: Can't stat file '/var/rudder/cfengine-community/inputs/common/1.0/update.cf' for parsing. (stat: No such file or directory).

Happened on SLES, while upgrading from Rudder 2.11.1 to 2.11.4
May happen on others systems

Note: I did not run /etc/init.d/rudder-server-root stop before upgrading