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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