Raphael S. Carvalho a3e065da9b db: make it possible to use custom error handler with io checker ...

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>

2016-10-27 15:54:21 -02:00

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