Vladimir Ozerov created IGNITE-2841:
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Summary: IGFS: Lock trash during file overwrite only if there is
clear evidence of a conflict.
Key: IGNITE-2841
URL: https://issues.apache.org/jira/browse/IGNITE-2841
Project: Ignite
Issue Type: Task
Components: IGFS
Affects Versions: 1.5.0.final
Reporter: Vladimir Ozerov
Fix For: 1.6
*Problem*
Currently we always lock trash ID during during file create if "overwrite" flag
is set to {{true}}. This is very pessimistic strategy leading to contention on
trash. In lots cases there will be no existing file.
*Solution*
1) Trash should be locked only if there is a clear evidence that old file
exists.
2) If we didn't lock trash and found existing file - go to re-try loop. This is
very unlikely case.
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