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Temporarily set experimental_mempurge_threshold=0 in crash test (#8958)

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Summary:
For now, disable it since the below command indicates it can cause a
failure. Running that command with `-experimental_mempurge_threshold=0`
has been running successfully for several minutes, whereas before it
failed in seconds.

```
$ while rm -rf /dev/shm/single_stress && ./db_stress --clear_column_family_one_in=0 --column_families=1 --db=/dev/shm/single_stress --experimental_mempurge_threshold=5.493146827397074 --flush_one_in=10000 --reopen=0 --write_buffer_size=262144 --value_size_mult=33 --max_write_buffer_number=3 -ops_per_thread=10000; do : ; done
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8958

Reviewed By: ltamasi

Differential Revision: D31187059

Pulled By: ajkr

fbshipit-source-id: 04d5bfb4fcc4f5b66233e691427dfd940c67037f
This commit is contained in:
Andrew Kryczka 2021-09-24 18:27:44 -07:00 committed by Facebook GitHub Bot
parent 791bff5b4e
commit 6d424be910
1 changed files with 4 additions and 1 deletions
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5
tools/db_crashtest.py
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@ -222,7 +222,10 @@ whitebox_default_params = {
simple_default_params = {
"allow_concurrent_memtable_write": lambda: random.randint(0, 1),
"column_families": 1,
"experimental_mempurge_threshold": lambda: 10.0*random.random(),
# TODO: re-enable once below loop succeeds for a while (a few minutes should
# suffice):
# `while rm -rf /dev/shm/single_stress && ./db_stress --clear_column_family_one_in=0 --column_families=1 --db=/dev/shm/single_stress --experimental_mempurge_threshold=5.493146827397074 --flush_one_in=10000 --reopen=0 --write_buffer_size=262144 --value_size_mult=33 --max_write_buffer_number=3 -ops_per_thread=10000; do : ; done`
"experimental_mempurge_threshold": 0,
"max_background_compactions": 1,
"max_bytes_for_level_base": 67108864,
"memtablerep": "skip_list",