Summary:
Improve listener_test to avoid possible false alarm

Test Plan:
./listener_test

Summary:
This compaction trigger does not seem to test any thing specific to
cuckoo table. Remove it.

Test Plan: make all check

Reviewers: igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29523

Summary:
Reported by bootcamper
This causes ldb tool to fail the assertion in ~ColumnFamilyData()

Test Plan:
./ldb --db=/tmp/test_db1 --create_if_missing put a1 b1
./ldb manifest_dump --path=/tmp/test_db1/MANIFEST-000001

Reviewers: sdong, yhchiang, rven, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29517

first rdb commit

Summary: We want to make sure people without gflags can compile RocksDB.

Test Plan: remove gflags, make all

Reviewers: sdong, rven, yhchiang, ljin

Reviewed By: ljin

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29469

Summary: Free checkpoint after its directory is removed.

Test Plan: Run valgrind with GetSnapshotLink.

Reviewers: igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29493

[RocksJava] Makefile correction

Summary:
An entry of ConstantColumnFamilyInfo is created when:
1. DB::Open
2. CreateColumnFamily.

However, there are cases that DB::Open could also call CreateColumnFamily
when create_missing_column_families=true.  As a result, it will create
duplicate ConstantColumnFamilyInfo and one of them would be leaked.

Test Plan: ./deletefile_test

Reviewers: igor, sdong, ljin

Reviewed By: ljin

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29307

Prevent non exist error message while executing
clean twice.

Summary:
arena doesn't use huge page by default. This change will make it happen
if possible. A new paramerter is added for Arena(). If it's set, Arena
will use huge page always. If huge page allocation fails, Arena
allocation will fallback to malloc().

Test Plan:
Change util/arena_test to support huge page allocation.
Run below tests:
1. normal regression test:
  make check
2. Check if huge page allocation works
  echo 50 > /proc/sys/vm/nr_hugepages
  make check

Reviewers: sdong

Reviewed By: sdong

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D28647

Summary: "build all" breaks in Clang mode with db_bench. Fix it.

Test Plan: USE_CLANG=1 make all

Reviewers: ljin, rven, yhchiang, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D29379

Summary:
Fixed iOS build caused by GetThreadList feature.

Summary: Improve listener_test by ensuring flushes are completed before assert.

Test Plan: listener_test

Reviewers: ljin, sdong, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29319

Summary: By providing default implementation of LinkFile, we don't break other implementations of Env.

Test Plan: none

Reviewers: rven, dhruba

Reviewed By: dhruba

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29355

Summary: stringSplit is not how we name our functions. Also, we had two StringSplit's in the codebase

Test Plan: make check

Reviewers: yhchiang, dhruba

Reviewed By: dhruba

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29361

[RocksJava] Update BackupableDB and RestoreBackupableDB to 3.8.0.

Summary:
Add enable_thread_tracking to DBOptions to allow
tracking thread status related to the DB.  Default is off.

Test Plan:
export ROCKSDB_TESTS=ThreadList
./db_test

Reviewers: ljin, sdong, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29289

Summary: First commit for rdb shell

Test Plan: unit_test.js does simple assertions on most of the main functionality; will update with rest of tests

Reviewers: igor, rven, lijn, yhciang, sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D28749

Summary: Created a CompatibleOptions object that can be used as a LevelDB Options object and then converted to a RocksDB Options object using the ConvertOptions() method.

Test Plan: Unit test included in diff.

Reviewers: ljin

Reviewed By: ljin

Subscribers: sdong, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D28893

Summary:
Moved checkpoint to utilities.
Addressed comments by Igor, Siying, Dhruba

Test Plan: db_test/SnapshotLink

Reviewers: dhruba, igor, sdong

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29079

- Correct usage of isInitialized()
- Adjusted JavaDoc

- Splitted methods to meaningful tests
- Added tests for additional functionality
- Covered missing parts

- GarbageCollectMethod() available.
- GetCorruptedBackups() available.

- Updated the BackupableDBOptions functionality to 3.8.0.
- Aligned Options implementation with remaining source code.
- Invented test-case.

Summary:
Fixed -Werror=unused-but-set-variable in thread_status_impl

Summary:
Add GetThreadList API, which allows developer to track the
status of each process.  Currently, calling GetThreadList will
only get the list of background threads in RocksDB with their
thread-id and thread-type (priority) set.  Will add more support
on this in the later diffs.

ThreadStatus currently has the following properties:

  // An unique ID for the thread.
  const uint64_t thread_id;

  // The type of the thread, it could be ROCKSDB_HIGH_PRIORITY,
  // ROCKSDB_LOW_PRIORITY, and USER_THREAD
  const ThreadType thread_type;

  // The name of the DB instance where the thread is currently
  // involved with.  It would be set to empty string if the thread
  // does not involve in any DB operation.
  const std::string db_name;

  // The name of the column family where the thread is currently
  // It would be set to empty string if the thread does not involve
  // in any column family.
  const std::string cf_name;

  // The event that the current thread is involved.
  // It would be set to empty string if the information about event
  // is not currently available.

Test Plan:
./thread_list_test
export ROCKSDB_TESTS=GetThreadList
./db_test

Reviewers: rven, igor, sdong, ljin

Reviewed By: ljin

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D25047

[RocksJava] Build improvements

Currently maven publishing uses the library with debug symbols. What
leads to unnecessary big library sizes. Included strip to remove
unnecessary stuff. 40M -> 2.7M

Previous to this commit too much targets got dependencies
on javadocs target.

Introduced one additional target "javalib" which resolves
that situation. JavaDoc will now be generated once while
executing a task with prefix "rocksdbjava".

- Remove JNI includes on clean
- Remove target folder generated by Maven
- Remove shared object
- Remove jar

Summary:
as title

[RocksJava] Convenience methods for Options