Fix broken files may be left on disk after TiFlash crash#1143
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JaySon-Huang merged 5 commits intopingcap:masterfrom Oct 14, 2020
Merged
Fix broken files may be left on disk after TiFlash crash#1143JaySon-Huang merged 5 commits intopingcap:masterfrom
JaySon-Huang merged 5 commits intopingcap:masterfrom
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Signed-off-by: JaySon-Huang <tshent@qq.com>
Signed-off-by: JaySon-Huang <tshent@qq.com>
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cherry pick to release-4.0 failed |
JaySon-Huang
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Oct 15, 2020
* Fix the issue that process crash may leave some broken DMFiles Signed-off-by: JaySon-Huang <tshent@qq.com>
JaySon-Huang
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Oct 19, 2020
* Fix the issue that process crash may leave some broken DMFiles Signed-off-by: JaySon-Huang <tshent@qq.com>
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What problem does this PR solve?
Issue Number: close #1138
Problem Summary: There could be a chance that TiFlash crashes when a DMFile is being deleted. For a table with many columns or the disk is busy, the deletion may not be completed and left some broken DMFiles on disk. Those broken DMFiles make trouble for TiFlash to restart normally.
What is changed and how it works?
To remove a DMFile, rename its directory (under directory storage model) with a prefix first. Clean those DMFiles should be deleted when
DMFile::listAllInPathis called.Even if there are broken DMFiles left, we can safely clean them when
DMFile::listAllInPathis called.Related changes
Check List
Tests
Side effects
Release note