Summary:
1) need to do acquire load when read the first entry in the bucket.
2) Make num_entries atomic
Test Plan: Ran DBTest.MultiThreaded with TSAN
Reviewers: yhchiang, rven, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32361
Summary: Add a new test case in fault_injection_test, which covers parallel compactions and multiple levels. Use MockEnv to run the new test case to speed it up. Improve MockEnv to avoid DestoryDB(), previously failed when deleting lock files.
Test Plan: Run ./fault_injection_test, including valgrind
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32415
Summary: TSAN complained that these are non-atomic reads and writes from different threads.
Test Plan: TSAN no longer complains
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32409
Summary: fault_injection_test occasionally fails because file closing can happen after deletion. Improve the test to support it.
Test Plan: I have a new test case I'm working on, where the issue appears almost every time. With the patch, the problem goes away.
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32373
Summary: We don't have plans to work on this in the short term. If we ever resurrect the project, we can find the code in the history. No need for it to linger around
Test Plan: no test
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32349
Summary: Fixed a compile warning in clang in db/listener_test.cc
Test Plan: make listener_test
Reviewers: oridb
Reviewed By: oridb
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D32337
Summary: This adds a listener for compactions, and gives some useful statistics on each compaction pass.
Test Plan: Unit tests.
Reviewers: sdong, igor, rven, yhchiang
Reviewed By: yhchiang
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D31641
Summary: I'm not sure the expected results of std::atomic::fetch_sub() when using memory_order_relaxed, and I suspect TSAN complains.
Test Plan: make all check
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32259
Summary:
ThreadSanitizer complains data race of super version and version's destructor with Get(). This patch will fix those warning.
The warning is likely from ColumnFamilyData::ReturnThreadLocalSuperVersion(). With relaxed consistency of CAS, reading the data of the super version can technically happen after swapping it in, enabling the background thread to clean it up.
Test Plan: make all check
Reviewers: rven, igor, yhchiang
Reviewed By: yhchiang
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32265
Summary:
We see failure of the test in travis but I can't repro it.
Add more logging in failure cases to help us figure out which failure it is.
Also makes synchronization slightly stronger, though there isn't seem to be a problem without it
Test Plan: Run the test
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32319
Summary:
Simple Java Native Objects usually are represented using
the same functionality but within different classes.
With this commit a template class was introduced to remove
the redundant impelementation to a certain extent.
[RocksJava] Removed todo comment in portal.h
As jclass instances shall not be cached, both
todos are obsolete and can be removed.
[RocksJava] Add missing test to Makefile
[RocksJava] Added tests for uncovered methods
Test Plan:
make rocksdbjava
make jtest
mvn -f rocksjni.pom package
Reviewers: adamretter, yhchiang, ankgup87
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D32145
Simple Java Native Objects usually are represented using
the same functionality but within different classes.
With this commit a template class was introduced to remove
the redundant impelementation to a certain extent.
Summary: Update the comment for the removal of mac-install-gflags.sh
Test Plan: n/a
Reviewers: igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D32295
Summary: log_dir_unsynced_ is a confusing name. Rename it to log_dir_synced_ and flip the value.
Test Plan: Run ./fault_injection_test
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32235
Summary: Currently fault_injection_test has a test case to drop all the unsynced data. Add one more case to take a randomized bytes from it.
Test Plan: Run the test
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32229
Summary:
1. If WAL directory is different from db directory. Sync the directory after creating a log file under it.
2. After creating an SST file, sync its parent directory instead of DB directory.
3. change the check of kResetDeleteUnsyncedFiles in fault_injection_test. Since we changed the behavior to sync log files' parent directory after first WAL sync, instead of creating, kResetDeleteUnsyncedFiles will not guarantee to show post sync updates.
Test Plan: make all check
Reviewers: yhchiang, rven, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32067
Summary:
This is first in a series of diffs that fixes data races detected by thread sanitizer.
Here the problem is that we call Ref() on a column family during a single-threaded write, without holding a mutex.
Test Plan: TSAN is no longer complaining about LevelLimitReopen.
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32121
Summary:
Prior to this the native library loader instance didn`t
care about a state. So if library loading was called multiple
times, multiple copies of the shared object were put into
the tmp folder and loaded into the JVM.
This changed within this commit to the following behavior:
- library loading is now synchronized
- library is loaded within the first call
- if loading was successful the library loaded sets a flag
- every subsequent call checks for a boolean flag indicating if there was
already a successful attempt
Test Plan:
- Execute example and watch tmp folder while the example is running
- After this patch only one shared object will be in the tmp folder
Usual tests:
- make rocksdbjava jtest
- mvn -f rocksjni.pom package
Reviewers: adamretter, ankgup87, yhchiang
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D32133
Summary: We should not be calling InternalStats methods outside of the mutex.
Test Plan:
COMPILE_WITH_TSAN=1 m db_test && ROCKSDB_TESTS=CompactionTrigger ./db_test
failing before the diff, works now
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32127
Summary: More race condition bugs with our archive WAL files. I do believe this caused t5988326, but can't reproduce the failure unfortunately.
Test Plan: make check
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32103
Summary: 3 iterations were disabled by mistake by one recent commit, causing CLANG build error. Fix it
Test Plan:
USE_CLANG=1 make fault_injection_test
and run the test
Reviewers: igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32109
Summary: fault_injection_test.cc has two variable names not following the convention fix it.
Test Plan: run the test
Reviewers: rven, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32097
Summary:
Wrapper classes in fault_injection_test doesn't simulate RocksDB Env behavior close enough. Improve it by:
(1) when fsync, don't sync parent
(2) support directory fsync
(3) support multiple directories
Add test cases of
(1) persisting by WAL fsync, not just compact range
(2) different WAL dir
(3) combination of (1) and (2)
(4) data directory is not the same as db name.
Test Plan: Run the test and make sure it passes.
Reviewers: rven, yhchiang, igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D32031
Summary: It looks like ASAN with gcc 4.9 works better than 4.8.1. It detected this possibility of heap buffer overflow. This was in our codebase for a year :)
Test Plan: COMPILE_WITH_ASAN=1 make backupable_db && ./backupable_db
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32085
Summary: We need this because we build MySQL with 4.8.1.
Test Plan: ROCKSDB_FBCODE_BUILD_WITH_481=1 make check
Reviewers: sdong, yhchiang, rven, yoshinorim
Reviewed By: yoshinorim
Subscribers: jonahcohen, yoshinorim, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32073
Summary: When you compile with COMPILE_WITH_TSAN=1, we will compile the code with -fsanitize=thread. This will resolve bunch of data race issues we might have.
Test Plan: COMPILE_WITH_TSAN=1 m db_test
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32019
Summary:
Upgrade gcc to 4.9.1 and clang to dev.
With new compilers I succeeded to run thread sanitizer, too. I'll post output (doesn't look good) and fix some things in separate diffs.
Test Plan: compiles with both g++ and clang
Reviewers: yhchiang, rven, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32007
The methods:
- newIterator
- iterators
support now also ReadOptions. That allows a user of the Java API
to retrieve RocksIterator instances on a snapshot.
Summary:
Make options_test runnable on ROCKSDB_LITE by blocking
those tests that require non-ROCKSDB_LITE feature.
Test Plan:
make options_test OPT=-DROCKSDB_LITE -j32
./options_test
make clean
make options_test -j32
./options_test
Reviewers: sdong, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D32025
sdong