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a series of fixups for nydusd #1587
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imeoer
requested review from
jiangliu,
ccx1024cc and
Desiki-high
and removed request for
a team
June 18, 2024 01:41
imeoer
changed the title
a series of fixups for nydusd
[WIP] a series of fixups for nydusd
Jun 18, 2024
1. Case1: Fuse server exits in thread not main. There is possibility that process finishes before shutdown of server. 2. Case2: Fuse server exits in thread of state machine. There is possibiltiy that state machine not responses to signal catch thread. Then dead lock happens. Process exits before shutdown of server. This pr aims to seperator shutdown actions from signal catch handler. It only notifies controller. Controller exits with shutdown of fuse server. No race. No deadlock. Signed-off-by: 泰友 <[email protected]>
User io may involve discontinuous segments in different chunks. Bad read is produced by merging them into continuous one. That is what Region does. This pr separate discontinuous segments into different regions, avoiding merging forcibly. Signed-off-by: 泰友 <[email protected]>
There are scenes that cache file is smaller than expect size. Such as: 1. Nydusd 1.6 generates cache file by prefetch, which is smaller than size in boot. 2. Nydusd 2.2 generates cache file by prefetch, when image not provide ext blob tables. 3. Nydusd not have enough time to fill cache for blob. Equality check for size is too much strict for both 1.6 compatibility and 2.2 concurrency. This pr ensures blob size smaller or equal than expect size. It also truncates blob cache when smaller than expect size. Signed-off-by: 泰友 <[email protected]>
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #1587 +/- ##
==========================================
- Coverage 61.53% 61.49% -0.05%
==========================================
Files 144 144
Lines 46616 46630 +14
Branches 44602 44616 +14
==========================================
- Hits 28685 28673 -12
- Misses 16452 16469 +17
- Partials 1479 1488 +9
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imeoer
changed the title
[WIP] a series of fixups for nydusd
a series of fixups for nydusd
Jun 18, 2024
adamqqqplay
approved these changes
Jun 18, 2024
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LGTM
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Relevant Issue (if applicable)
FROM #1561
Just drop the commit 8df5d7f, it's breaks block device unit test, we still need to investigate.
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