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From Stanislav Lukyanov <stanlukya...@gmail.com>
Subject Handling slashes in cache names
Date Mon, 25 Dec 2017 15:09:26 GMT
Hi all,

I’m looking into https://issues.apache.org/jira/browse/IGNITE-7264, and I need some guidance
on what’s the best way to approach it.

The problem is that cache names are not restricted, but if persistence is enabled the cache
needs to have a corresponding directory on the file system (“cache-…”) which can’t
be created if the cache name contains certain characters (or a reserved system name).

A straightforward approach would be to check if a cache name is allowed on the local system
(e.g. via `Paths.get(name)`) and fail to create cache if it isn’t, but I’m a bit concerned
with the consistency of the behavior (the same cache name be allowed on one system and not
on another).
I think a better way would be to replace special characters (say, all non-alphanumeric characters)
with underscores in file names (not changing the cache configuration). Would this be OK? Are
there any risks I’m not considering?



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