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tarantool / tarantool / 24892723840
88%

Build:
DEFAULT BRANCH: master
Ran 24 Apr 2026 01:59PM UTC
Jobs 1
Files 525
Run time 2min
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24 Apr 2026 01:43PM UTC coverage: 87.672% (-0.02%) from 87.696%
24892723840

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github

sergepetrenko
limbo: handle volatile LSN lagging behind

The volatile confirmed LSN can legally lag behind the persisted
confirmed LSN, when the incoming CONFIRMations were done with a
smaller quorum somehow. Then the volatile LSN was still counting
acks, while the persisted LSN was moving forward on CONFIRM
entries.

Lets keep them in sync. The volatile LSN must be the present or
the future of the persisted LSN.

Otherwise the limbo worker saw the invariant broken and was
asserting.

The bug was only present in the Debug build, and it was
introduced in commit 516a3cc50
("limbo: collect ACKs on replicas").

Part of #8095

NO_DOC=bugfix
NO_CHANGELOG=the bug wasn't released yet

70703 of 118960 branches covered (59.43%)

2 of 2 new or added lines in 1 file covered. (100.0%)

57 existing lines in 20 files now uncovered.

106334 of 121286 relevant lines covered (87.67%)

1358620.4 hits per line

Coverage Regressions

Lines Coverage ∆ File
16
90.89
-0.37% src/box/box.cc
6
95.22
-1.25% src/box/vy_read_iterator.c
5
92.51
-0.22% src/box/vinyl.c
4
89.64
-0.29% src/box/applier.cc
4
81.82
-12.12% src/lua/minifio.c
3
88.09
-0.19% src/box/vy_run.c
2
93.81
0.41% src/box/xrow_update_field.c
2
96.3
-3.7% src/lib/core/backtrace.c
2
81.38
-0.6% src/lib/core/coio.c
2
93.03
-0.09% src/lib/core/fiber.c
2
82.22
-4.44% src/lib/core/latch.h
1
88.96
-0.61% src/box/engine.c
1
96.88
-1.56% src/box/engine.h
1
95.1
-0.1% src/box/replication.cc
1
90.3
-0.08% src/box/vy_log.c
1
85.91
0.12% src/box/xlog.c
1
87.93
-1.54% src/box/xlog.h
1
96.55
-1.15% src/lib/core/histogram.c
1
96.1
-0.05% src/lib/salad/bps_tree.h
1
91.56
-0.11% src/lib/swim/swim.c
Jobs
ID Job ID Ran Files Coverage
1 24892723840.1 24 Apr 2026 01:59PM UTC 525
87.67
GitHub Action Run
Source Files on build 24892723840
  • Tree
  • List 525
  • Changed 31
  • Source Changed 0
  • Coverage Changed 31
Coverage ∆ File Lines Relevant Covered Missed Hits/Line Branch Hits Branch Misses
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