By default, io checker will cause Scylla to shutdown if it finds
specific system errors. Right now, io checker isn't flexible
enough to allow a specialized handler. For example, we don't want
to Scylla to shutdown if there's an permission problem when
uploading new files from upload dir. This desired flexibility is
made possible here by allowing a handler parameter to io check
functions and also changing existing code to take advantage of it.
That's a step towards fixing #1709.
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
Currently we only shut down on EIO. Expand this to shut down on any
system_error.
This may cause us to shut down prematurely due to a transient error,
but this is better than not shutting down due to a permanent error
(such as ENOSPC or EPERM). We may whitelist certain errors in the future
to improve the behavior.
Fixes#1311.
Message-Id: <1465136956-1352-1-git-send-email-avi@scylladb.com>
