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BF-8642

Violation of $clusterTime >= operationTime property when running with causal consistency enabled. Fixed by SERVER-34843.

Setup

cd mongo
git checkout 117e1911afaa799071b5e02ce363f793645d5654
python2 buildscripts/scons.py     \
    -j$(nproc)                    \
    --disable-warnings-as-errors  \
    mongo mongod mongos
git checkout visemet/mongodb-rr-experiment
git am ../bf-8642/patches/0001-Remove-enableMajorityReadConcern-option-from-mongod.patch
git am ../bf-8642/patches/0002-Remove-data-consistency-checks-from-test-suite.patch
git checkout 117e1911afaa799071b5e02ce363f793645d5654 -- jstests/concurrency/fsm_workloads/reindex.js
git commit -m 'Use version of test from failing commit.'

rm -rf ~/.local/share/rr/*
python2 buildscripts/resmoke.py                     \
    -j$(( $(nproc) / 3 ))                           \
    --repeatTests=1000                              \
    --continueOnFailure                             \
    --log=file                                      \
    --reportFile=report.json                        \
    --rr=chaos                                      \
    --suite=concurrency_sharded_causal_consistency  \
    jstests/concurrency/fsm_workloads/reindex.js

Results

  • 3 / 1000 when using --rr=chaos

    $ du -hs ~/.local/share/rr
36G     /home/ubuntu/.local/share/rr

  • Didn't attempt with --rr=record

  • 0 / 1000 when using --rr=off