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Fix when output level is 0 of universal compaction with trivial move

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Summary: Fix for universal compaction with trivial move, when the ouput level is 0. The tests where failing. Fixed by allowing normal compaction when output level is 0.

Test Plan: modified test cases run successfully.

Reviewers: sdong, yhchiang, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: anthony, kradhakrishnan, leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D42933
main
Poornima Chozhiyath Raman 10 years ago
parent 6a82fba75f
commit 1bdfcef7bf
6 changed files with 42 additions and 23 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 3
      db/compaction.cc
  2. 21
      db/compaction_picker.cc
  3. 2
      db/compaction_picker.h
  4. 7
      db/db_impl.cc
  5. 29
      db/db_universal_compaction_test.cc
  6. 3
      util/auto_roll_logger_test.cc

3
db/compaction.cc
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@ -168,7 +168,8 @@ bool Compaction::IsTrivialMove() const {
// Used in universal compaction, where trivial move can be done if the
// input files are non overlapping
if (cfd_->ioptions()->compaction_options_universal.allow_trivial_move) {
if ((cfd_->ioptions()->compaction_options_universal.allow_trivial_move) &&
(output_level_ != 0)) {
return is_trivial_move_;
}

21
db/compaction_picker.cc
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@ -1114,7 +1114,7 @@ void UniversalCompactionPicker::SortedRun::DumpSizeInfo(
std::vector<UniversalCompactionPicker::SortedRun>
UniversalCompactionPicker::CalculateSortedRuns(
const VersionStorageInfo& vstorage) {
const VersionStorageInfo& vstorage, const ImmutableCFOptions& ioptions) {
std::vector<UniversalCompactionPicker::SortedRun> ret;
for (FileMetaData* f : vstorage.LevelFiles(0)) {
ret.emplace_back(0, f, f->fd.GetFileSize(), f->compensated_file_size,
@ -1128,10 +1128,18 @@ UniversalCompactionPicker::CalculateSortedRuns(
for (FileMetaData* f : vstorage.LevelFiles(level)) {
total_compensated_size += f->compensated_file_size;
total_size += f->fd.GetFileSize();
// Compaction always includes all files for a non-zero level, so for a
// non-zero level, all the files should share the same being_compacted
// value.
assert(is_first || f->being_compacted == being_compacted);
if (ioptions.compaction_options_universal.allow_trivial_move == true) {
if (f->being_compacted) {
being_compacted = f->being_compacted;
}
} else {
// Compaction always includes all files for a non-zero level, so for a
// non-zero level, all the files should share the same being_compacted
// value.
// This assumption is only valid when
// ioptions.compaction_options_universal.allow_trivial_move is false
assert(is_first || f->being_compacted == being_compacted);
}
if (is_first) {
being_compacted = f->being_compacted;
is_first = false;
@ -1223,7 +1231,8 @@ Compaction* UniversalCompactionPicker::PickCompaction(
VersionStorageInfo* vstorage, LogBuffer* log_buffer) {
const int kLevel0 = 0;
double score = vstorage->CompactionScore(kLevel0);
std::vector<SortedRun> sorted_runs = CalculateSortedRuns(*vstorage);
std::vector<SortedRun> sorted_runs =
CalculateSortedRuns(*vstorage, ioptions_);
if (sorted_runs.size() <
(unsigned int)mutable_cf_options.level0_file_num_compaction_trigger) {

2
db/compaction_picker.h
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@ -275,7 +275,7 @@ class UniversalCompactionPicker : public CompactionPicker {
const std::vector<SortedRun>& sorted_runs, LogBuffer* log_buffer);
static std::vector<SortedRun> CalculateSortedRuns(
const VersionStorageInfo& vstorage);
const VersionStorageInfo& vstorage, const ImmutableCFOptions& ioptions);
// Pick a path ID to place a newly generated file, with its estimated file
// size.

7
db/db_impl.cc
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@ -2542,8 +2542,7 @@ Status DBImpl::BackgroundCompaction(bool* madeProgress, JobContext* job_context,
int32_t moved_files = 0;
int64_t moved_bytes = 0;
for (unsigned int l = 0; l < c->num_input_levels(); l++) {
if (l == static_cast<unsigned int>(c->output_level()) ||
(c->output_level() == 0)) {
if (c->level(l) == c->output_level()) {
continue;
}
for (size_t i = 0; i < c->num_input_files(l); i++) {
@ -2591,7 +2590,9 @@ Status DBImpl::BackgroundCompaction(bool* madeProgress, JobContext* job_context,
// Clear Instrument
ThreadStatusUtil::ResetThreadStatus();
} else {
TEST_SYNC_POINT("DBImpl::BackgroundCompaction:NonTrivial");
int output_level __attribute__((unused)) = c->output_level();
TEST_SYNC_POINT_CALLBACK("DBImpl::BackgroundCompaction:NonTrivial",
&output_level);
assert(is_snapshot_supported_ || snapshots_.empty());
CompactionJob compaction_job(
job_context->job_id, c.get(), db_options_, env_options_,

29
db/db_universal_compaction_test.cc
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@ -452,8 +452,12 @@ TEST_P(DBTestUniversalCompactionMultiLevels, UniversalCompactionTrivialMove) {
"DBImpl::BackgroundCompaction:TrivialMove",
[&](void* arg) { trivial_move++; });
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::BackgroundCompaction:NonTrivial",
[&](void* arg) { non_trivial_move++; });
"DBImpl::BackgroundCompaction:NonTrivial", [&](void* arg) {
non_trivial_move++;
ASSERT_TRUE(arg != nullptr);
int output_level = *(static_cast<int*>(arg));
ASSERT_EQ(output_level, 0);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Options options;
@ -462,7 +466,7 @@ TEST_P(DBTestUniversalCompactionMultiLevels, UniversalCompactionTrivialMove) {
options.num_levels = 3;
options.write_buffer_size = 100 << 10; // 100KB
options.level0_file_num_compaction_trigger = 3;
options.max_background_compactions = 1;
options.max_background_compactions = 2;
options.target_file_size_base = 32 * 1024;
options = CurrentOptions(options);
DestroyAndReopen(options);
@ -474,7 +478,7 @@ TEST_P(DBTestUniversalCompactionMultiLevels, UniversalCompactionTrivialMove) {
ReopenWithColumnFamilies({"default", "pikachu"}, options);
Random rnd(301);
int num_keys = 15000;
int num_keys = 150000;
for (int i = 0; i < num_keys; i++) {
ASSERT_OK(Put(1, Key(i), Key(i)));
}
@ -484,7 +488,7 @@ TEST_P(DBTestUniversalCompactionMultiLevels, UniversalCompactionTrivialMove) {
dbfull()->TEST_WaitForCompact();
ASSERT_GT(trivial_move, 0);
ASSERT_EQ(non_trivial_move, 0);
ASSERT_GT(non_trivial_move, 0);
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
@ -789,14 +793,18 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionTrivialMoveTest1) {
"DBImpl::BackgroundCompaction:TrivialMove",
[&](void* arg) { trivial_move++; });
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::BackgroundCompaction:NonTrivial",
[&](void* arg) { non_trivial_move++; });
"DBImpl::BackgroundCompaction:NonTrivial", [&](void* arg) {
non_trivial_move++;
ASSERT_TRUE(arg != nullptr);
int output_level = *(static_cast<int*>(arg));
ASSERT_EQ(output_level, 0);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Options options;
options.compaction_style = kCompactionStyleUniversal;
options.compaction_options_universal.allow_trivial_move = true;
options.num_levels = 3;
options.num_levels = 2;
options.write_buffer_size = 100 << 10; // 100KB
options.level0_file_num_compaction_trigger = 3;
options.max_background_compactions = 1;
@ -811,7 +819,7 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionTrivialMoveTest1) {
ReopenWithColumnFamilies({"default", "pikachu"}, options);
Random rnd(301);
int num_keys = 150000;
int num_keys = 250000;
for (int i = 0; i < num_keys; i++) {
ASSERT_OK(Put(1, Key(i), Key(i)));
}
@ -821,7 +829,7 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionTrivialMoveTest1) {
dbfull()->TEST_WaitForCompact();
ASSERT_GT(trivial_move, 0);
ASSERT_EQ(non_trivial_move, 0);
ASSERT_GT(non_trivial_move, 0);
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
@ -835,6 +843,7 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionTrivialMoveTest2) {
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::BackgroundCompaction:NonTrivial",
[&](void* arg) { non_trivial_move++; });
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Options options;

3
util/auto_roll_logger_test.cc
Unescape View File

@ -28,8 +28,7 @@ class AutoRollLoggerTest : public testing::Test {
// become confused
std::string testDir(kTestDir);
std::replace_if(testDir.begin(), testDir.end(),
[](char ch) { return ch == '/'; },
'\\');
[](char ch) { return ch == '/'; }, '\\');
std::string deleteCmd = "if exist " + testDir + " rd /s /q " + testDir;
#else
std::string deleteCmd = "rm -rf " + kTestDir;

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