[Zope] ZODB.POSException.ReadConflictError

[Tim Peters]

[Chris McDonough]
> This is actually normal.  See the end of
> http://www.plope.com/Books/2_7Edition/Sessions.stx ("Conflict Errors")
> for a short explanation.

Conflict errors are certainly normal, but IIUC the OP is seeing site
errors, not just log msgs.  The text referenced also says:

    The requests which experience conflict errors will be retried
    automatically by Zope, and the end user should never see one.

I'm not clear on why it says that, since Zope gives up after a few
tries (i.e., "never" seems an awfully strong promise, right?).