do not update atime when region has down peers #1118
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Signed-off-by: zyguan <[email protected]>
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Signed-off-by: zyguan <[email protected]>
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Signed-off-by: zyguan <[email protected]>
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With this PR, the cached region won't live longger than RegionCacheTTL, or in other words, a region with down peers will be reloaded every RegionCacheTTL.
ref: #1104
related issues:
integreation tests
tiflash crash then up (#1029)
tikv down and reschedule regions (#879)
WIP