[jira] [Created] (IGNITE-14796) Support of deallocating file space not checked during initialization of CacheCompressionManager

["Ivan Daschinsky (Jira)" <ji...@apache.org>]

Ivan Daschinsky created IGNITE-14796:
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             Summary: Support of deallocating file space not checked during initialization of CacheCompressionManager
                 Key: IGNITE-14796
                 URL: https://issues.apache.org/jira/browse/IGNITE-14796
             Project: Ignite
          Issue Type: Bug
          Components: persistence
    Affects Versions: 2.10
            Reporter: Ivan Daschinsky


Support of deallocating file space currently is not checked during initialization of CacheCompressionManager. 
According to [man page|https://man7.org/linux/man-pages/man2/fallocate.2.html], 
{{fallocate}} supports "punching hole" only on small subset of filesystems. We should check it during initialization of CacheCompressionManager.


 By the way  in the method {{org.apache.ignite.internal.processors.compress.NativeFileSystemLinux#punchHole}}  {{errno}} incorrectly processed. {{fallocate}} on error returns always {{-1}} and set {{errno}}. Currently this method returns only {{-1}} that misleads user.





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