swh:1:snp:5115096b921df712aeb2a08114fede57fb3331fb
Revision 09957ded1df3de32eacfe4c2b2079b3e32064775 authored by Yanqin Jin on 29 March 2019, 17:03:02 UTC, committed by Facebook Github Bot on 29 March 2019, 17:08:50 UTC
Summary: **This PR updates RepeatableThread::wait, breaking some tests on OS X. The rest of the PR fixes the tests on OS X.** `RepeatableThreadTest.MockEnvTest` uses `MockTimeEnv` and `RepeatableThread`. If `RepeatableThread::wait` calls `TimedWait` with a time smaller than or equal to the current (real) time, `TimedWait` returns immediately on certain platforms, e.g. OS X. #4560 addresses this issue by replacing `TimedWait` with `Wait` in test. This fixes the test but makes test/production code diverge, which is not optimal for test coverage. This PR proposes an alternative fix which unifies test and production code path for `RepeatableThread::wait`. We obtain the current (real) time in seconds and add 10 extra seconds to ensure that `RepeatableThread::wait` invokes `TimedWait` with a time greater than (real) current time. This is to prevent the `TimedWait` function from returning immediately without sleeping and releasing the mutex. If `TimedWait` returns immediately, the mutex will not be released, and `RepeatableThread::TEST_WaitForRun` never has a chance to execute the callback which, in this case, updates the result returned by `mock_env->NowMicros()`. Consequently, `RepeatableThread::wait` cannot break out of the loop, causing test to hang. The extra 10 seconds is a best-effort approach because there seems no reliable and deterministic way to provide the aforementioned guarantee. By the time `RepeatableThread::wait` is called, there is no guarantee that the `delay + mock_env->NowMicros()` will be greater than the current real time. However, 10 seconds should be sufficient in most cases. We will keep an eye for possible flakiness of this test. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5107 Differential Revision: D14680885 Pulled By: riversand963 fbshipit-source-id: d1ecbe10e1dacd110bd464cd01e188bfee72b89e
1 parent d77476e
Tip revision: 19076c95aa2bcee55c26fcf0960cc844ad86ee9c authored by Levi Tamasi on 21 January 2021, 22:18:25 UTC
Update HISTORY.md for PR 7888 (#7890)
Update HISTORY.md for PR 7888 (#7890)
Tip revision: 19076c9
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buckifier | ||
build_tools | ||
cache | ||
cmake | ||
coverage | ||
db | ||
docs | ||
env | ||
examples | ||
hdfs | ||
include | ||
java | ||
memtable | ||
monitoring | ||
options | ||
port | ||
table | ||
third-party | ||
tools | ||
util | ||
utilities | ||
.clang-format | -rw-r--r-- | 138 bytes |
.gitignore | -rw-r--r-- | 740 bytes |
.lgtm.yml | -rw-r--r-- | 67 bytes |
.travis.yml | -rw-r--r-- | 3.4 KB |
AUTHORS | -rw-r--r-- | 322 bytes |
CMakeLists.txt | -rw-r--r-- | 35.9 KB |
CODE_OF_CONDUCT.md | -rw-r--r-- | 249 bytes |
CONTRIBUTING.md | -rw-r--r-- | 706 bytes |
COPYING | -rw-r--r-- | 17.7 KB |
DEFAULT_OPTIONS_HISTORY.md | -rw-r--r-- | 1.5 KB |
DUMP_FORMAT.md | -rw-r--r-- | 763 bytes |
HISTORY.md | -rw-r--r-- | 74.9 KB |
INSTALL.md | -rw-r--r-- | 7.5 KB |
LANGUAGE-BINDINGS.md | -rw-r--r-- | 1.1 KB |
LICENSE.Apache | -rw-r--r-- | 11.1 KB |
LICENSE.leveldb | -rw-r--r-- | 1.5 KB |
Makefile | -rw-r--r-- | 66.6 KB |
README.md | -rw-r--r-- | 1.8 KB |
ROCKSDB_LITE.md | -rw-r--r-- | 1.0 KB |
TARGETS | -rw-r--r-- | 26.8 KB |
USERS.md | -rw-r--r-- | 5.6 KB |
Vagrantfile | -rw-r--r-- | 1017 bytes |
WINDOWS_PORT.md | -rw-r--r-- | 12.5 KB |
appveyor.yml | -rw-r--r-- | 436 bytes |
defs.bzl | -rw-r--r-- | 1005 bytes |
issue_template.md | -rw-r--r-- | 243 bytes |
src.mk | -rw-r--r-- | 30.1 KB |
thirdparty.inc | -rw-r--r-- | 7.7 KB |
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