[MDEV-13691] my_write() sets inappropriate errno, if WriteFile fails with ERROR_FILE_SYSTEM_LIMITATION Created: 2017-08-31  Updated: 2018-01-09  Resolved: 2017-08-31

Status: Closed
Project: MariaDB Server
Component/s: Platform Windows
Affects Version/s: 5.5, 10.0, 10.1, 10.2
Fix Version/s: 10.0.33

Type: Bug Priority: Major
Reporter: Vladislav Vaintroub Assignee: Vladislav Vaintroub
Resolution: Fixed Votes: 0
Labels: None


 Description   

WriteFile may fail if number of NTFS extents reached limit. GetLastError() returns 665 (ERROR_FILE_SYSTEM_LIMITATION), and this is mapped to catch-all generic EINVAL,
which does not help much with troubleshooting.

In one case , as reported by support, mariabackup was returning EINVAL during write of a large file, and it required procmon tracing to find out the actual reason for failure.



 Comments   
Comment by Vladislav Vaintroub [ 2017-08-31 ]

https://github.com/MariaDB/server/commit/66eb9774e43dc96e7d45d800b4860354f81d258d

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