bugzilla-daemon at main.slony.info bugzilla-daemon at main.slony.info
Thu Sep 2 12:16:33 PDT 2010
http://www.slony.info/bugzilla/show_bug.cgi?id=80

Jan Wieck <janwieck at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|2.0                         |devel

--- Comment #6 from Jan Wieck <janwieck at yahoo.com> 2010-09-02 12:16:33 PDT ---
We have to push this one back to devel.

There are several issues with a premature DROP NODE. One is that the function
dropNode_int() cleans up after the dropped node. Namely that it deletes every
reference to that node from sl_path, sl_listen, sl_confirm, sl_event. This can
eventually destroy the FAILOVER_NODE or MOVE_SET event before it was forwarded
to everybody else.

However, we cannot easily detect what needs to be waited for because it is
possible to have a multi-node failure, so some other node will never confirm
those events. 

At this point I don't have a plan how to finally fix this problem. It might
require a new event type.

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