Commit Graph

10 Commits

Author SHA1 Message Date
Mike Kolupaev
eef63ef807 Fixed CompactFiles() spuriously failing or corrupting DB
Summary:
We started getting two kinds of crashes since we started using `DB::CompactFiles()`:
(1) `CompactFiles()` fails saying something like "/data/logdevice/4440/shard12/012302.sst: No such file or directory", and presumably makes DB read-only,
(2) DB fails to open saying "Corruption: Can't access /267000.sst: IO error: /data/logdevice/4440/shard1/267000.sst: No such file or directory".

AFAICT, both can be explained by background thread deleting compaction output as "obsolete" while it's being written, before it's committed to manifest. If it ends up committed to the manifest, we get (2); if compaction notices the disappearance and fails, we get (1). The internal tasks t10068021 and t10134177 have some details about the investigation that led to this.

Test Plan: `make -j check`; the new test fails to reopen the DB without the fix

Reviewers: yhchiang

Reviewed By: yhchiang

Subscribers: dhruba, sdong

Differential Revision: https://reviews.facebook.net/D54561
2016-02-22 13:54:58 -08:00
Baraa Hamodi
21e95811d1 Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
Yueh-Hsuan Chiang
955ecf8b49 Fix an ASAN error in compact_files_test
Summary:
compact_files_test enables SyncPoint but never disable it before
the test terminates.  As a result, it might cause heap-use-after-free
error when some code path trying to access the static variable of
SyncPoint when it has already gone out of scope after the main thread
dies.

Test Plan:
COMPILE_WITH_ASAN=1 make compact_files_test -j32
./compact_files_test

Reviewers: sdong, anthony, kradhakrishnan, rven, andrewkr, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D53379
2016-01-26 11:30:30 -08:00
Venkatesh Radhakrishnan
2ae4d7d708 Make sure that CompactFiles does not run two parallel Level 0 compactions
Summary:
Since level 0 files can overlap, two level 0 compactions cannot
run in parallel. Compact files needs to check this before running a
compaction.

Test Plan: CompactFilesTest.L0ConflictsFiles

Reviewers: igor, IslamAbdelRahman, anthony, sdong, yhchiang

Reviewed By: yhchiang

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D50079
2015-11-13 12:01:00 -08:00
agiardullo
064294081b Improved FileExists API
Summary: Add new CheckFileExists method.  Considered changing the FileExists api but didn't want to break anyone's builds.

Test Plan: unit tests

Reviewers: yhchiang, igor, sdong

Reviewed By: sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D42003
2015-07-20 17:20:40 -07:00
Islam AbdelRahman
aa8ac6445b Skip unsupported tests in ROCKSDB_LITE
Summary:
Skipping these tests in ROCKSDB_LITE since they are not supported
json_document_test
wal_manager_test
ttl_test
sst_dump_test
deletefile_test
compact_files_test
prefix_test
checkpoint_test

Test Plan:
json_document_test
wal_manager_test
ttl_test
sst_dump_test
deletefile_test
compact_files_test
prefix_test
checkpoint_test

Reviewers: igor, sdong, yhchiang, kradhakrishnan, anthony

Reviewed By: anthony

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D42573
2015-07-20 11:24:54 -07:00
sdong
e409d3d745 Make "make all" work for CYGWIN
Summary: Some test and benchmark codes don't build for CYGWIN. Fix it.

Test Plan: Build "make all" with TARGET_OS=Cygwin on cygwin and make sure it passes.

Reviewers: rven, yhchiang, anthony, igor, kradhakrishnan

Reviewed By: igor, kradhakrishnan

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D39711
2015-06-09 16:36:07 -07:00
Yueh-Hsuan Chiang
2e764f06ea [API Change] Improve EventListener::OnFlushCompleted interface
Summary:
EventListener::OnFlushCompleted() now passes a structure instead
of a list of parameters.  This minimizes the API change in the
future.

Test Plan:
listener_test
compact_files_test
example/compact_files_example

Reviewers: kradhakrishnan, sdong, IslamAbdelRahman, rven, igor

Reviewed By: rven, igor

Subscribers: IslamAbdelRahman, rven, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D39543
2015-06-05 12:28:51 -07:00
Igor Sugak
b4b69e4f77 rocksdb: switch to gtest
Summary:
Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different.
In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest.

There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides.

```lang=bash
% cat ~/transform
#!/bin/sh
files=$(git ls-files '*test\.cc')
for file in $files
do
  if grep -q "rocksdb::test::RunAllTests()" $file
  then
    if grep -Eq '^class \w+Test {' $file
    then
      perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file
      perl -pi -e 's/^(TEST)/${1}_F/g' $file
    fi
    perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file
    perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file
  fi
done
% sh ~/transform
% make format
```

Second iteration of this diff contains only scripted changes.

Third iteration contains manual changes to fix last errors and make it compilable.

Test Plan:
Build and notice no errors.
```lang=bash
% USE_CLANG=1 make check -j55
```
Tests are still testing.

Reviewers: meyering, sdong, rven, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D35157
2015-03-17 14:08:00 -07:00
Yueh-Hsuan Chiang
2b785d76b8 Fixed a bug where CompactFiles won't delete obsolete files until flush.
Summary: Fixed a bug where CompactFiles won't delete obsolete files until flush.

Test Plan:
./compact_files_test
export ROCKSDB_TESTS=CompactFiles
./db_test

Reviewers: rven, sdong, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D34671
2015-03-11 13:06:59 -07:00