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Pass CF ID to MemTableRepFactory 

Summary:
Some users want to monitor column family activity in their custom memtable implementations. Previously there was no way to figure out with which column family a memtable is associated. This diff:

- adds an overload to MemTableRepFactory::CreateMemTableRep() that provides the CF ID. For compatibility, its default implementation calls the old overload.
- updates MemTable to create MemTableRep's using the new overload.
Closes https://github.com/facebook/rocksdb/pull/2346

Differential Revision: D5108061

Pulled By: ajkr

fbshipit-source-id: 3a1921214a348dd8ea0f54e1cab3b71c3d46d616
This commit is contained in:
Andrew Kryczka 2017-06-02 12:08:01 -07:00 committed by Facebook Github Bot
parent f68d88be51
commit a4d9c02511
12 changed files with 65 additions and 17 deletions
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2
db/column_family.cc
View File

@ -785,7 +785,7 @@ uint64_t ColumnFamilyData::GetTotalSstFilesSize() const {
MemTable* ColumnFamilyData::ConstructNewMemtable(
const MutableCFOptions& mutable_cf_options, SequenceNumber earliest_seq) {
return new MemTable(internal_comparator_, ioptions_, mutable_cf_options,
write_buffer_manager_, earliest_seq);
write_buffer_manager_, earliest_seq, id_);
}
void ColumnFamilyData::CreateNewMemtable(

31
db/db_memtable_test.cc
View File

@ -84,14 +84,27 @@ class MockMemTableRepFactory : public MemTableRepFactory {
return mock_rep_;
}
virtual MemTableRep* CreateMemTableRep(const MemTableRep::KeyComparator& cmp,
MemTableAllocator* allocator,
const SliceTransform* transform,
Logger* logger,
uint32_t column_family_id) override {
last_column_family_id_ = column_family_id;
return CreateMemTableRep(cmp, allocator, transform, logger);
}
virtual const char* Name() const override { return "MockMemTableRepFactory"; }
MockMemTableRep* rep() { return mock_rep_; }
bool IsInsertConcurrentlySupported() const override { return false; }
uint32_t GetLastColumnFamilyId() { return last_column_family_id_; }
private:
MockMemTableRep* mock_rep_;
// workaround since there's no port::kMaxUint32 yet.
uint32_t last_column_family_id_ = static_cast<uint32_t>(-1);
};
class TestPrefixExtractor : public SliceTransform {
@ -157,6 +170,24 @@ TEST_F(DBMemTableTest, InsertWithHint) {
ASSERT_EQ("vvv", Get("whitelisted"));
}
TEST_F(DBMemTableTest, ColumnFamilyId) {
// Verifies MemTableRepFactory is told the right column family id.
Options options;
options.allow_concurrent_memtable_write = false;
options.create_if_missing = true;
options.memtable_factory.reset(new MockMemTableRepFactory());
DestroyAndReopen(options);
CreateAndReopenWithCF({"pikachu"}, options);
for (int cf = 0; cf < 2; ++cf) {
ASSERT_OK(Put(cf, "key", "val"));
ASSERT_OK(Flush(cf));
ASSERT_EQ(
cf, static_cast<MockMemTableRepFactory*>(options.memtable_factory.get())
->GetLastColumnFamilyId());
}
}
} // namespace rocksdb
int main(int argc, char** argv) {

1
db/db_test_util.h
View File

@ -184,6 +184,7 @@ class SpecialSkipListFactory : public MemTableRepFactory {
explicit SpecialSkipListFactory(int num_entries_flush)
: num_entries_flush_(num_entries_flush) {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
const SliceTransform* transform, Logger* logger) override {

8
db/memtable.cc
View File

@ -63,7 +63,7 @@ MemTable::MemTable(const InternalKeyComparator& cmp,
const ImmutableCFOptions& ioptions,
const MutableCFOptions& mutable_cf_options,
WriteBufferManager* write_buffer_manager,
SequenceNumber latest_seq)
SequenceNumber latest_seq, uint32_t column_family_id)
: comparator_(cmp),
moptions_(ioptions, mutable_cf_options),
refs_(0),
@ -73,10 +73,10 @@ MemTable::MemTable(const InternalKeyComparator& cmp,
allocator_(&arena_, write_buffer_manager),
table_(ioptions.memtable_factory->CreateMemTableRep(
comparator_, &allocator_, ioptions.prefix_extractor,
ioptions.info_log)),
ioptions.info_log, column_family_id)),
range_del_table_(SkipListFactory().CreateMemTableRep(
comparator_, &allocator_, nullptr /* transform */,
ioptions.info_log)),
comparator_, &allocator_, nullptr /* transform */, ioptions.info_log,
column_family_id)),
is_range_del_table_empty_(true),
data_size_(0),
num_entries_(0),

2
db/memtable.h
View File

@ -103,7 +103,7 @@ class MemTable {
const ImmutableCFOptions& ioptions,
const MutableCFOptions& mutable_cf_options,
WriteBufferManager* write_buffer_manager,
SequenceNumber earliest_seq);
SequenceNumber earliest_seq, uint32_t column_family_id);
// Do not delete this MemTable unless Unref() indicates it not in use.
~MemTable();

12
db/memtable_list_test.cc
View File

@ -136,7 +136,7 @@ TEST_F(MemTableListTest, GetTest) {
WriteBufferManager wb(options.db_write_buffer_size);
MemTable* mem = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem->Ref();
// Write some keys to this memtable.
@ -175,7 +175,7 @@ TEST_F(MemTableListTest, GetTest) {
// Create another memtable and write some keys to it
WriteBufferManager wb2(options.db_write_buffer_size);
MemTable* mem2 = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb2,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem2->Ref();
mem2->Add(++seq, kTypeDeletion, "key1", "");
@ -243,7 +243,7 @@ TEST_F(MemTableListTest, GetFromHistoryTest) {
WriteBufferManager wb(options.db_write_buffer_size);
MemTable* mem = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem->Ref();
// Write some keys to this memtable.
@ -321,7 +321,7 @@ TEST_F(MemTableListTest, GetFromHistoryTest) {
// Create another memtable and write some keys to it
WriteBufferManager wb2(options.db_write_buffer_size);
MemTable* mem2 = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb2,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem2->Ref();
mem2->Add(++seq, kTypeDeletion, "key1", "");
@ -346,7 +346,7 @@ TEST_F(MemTableListTest, GetFromHistoryTest) {
// Add a third memtable to push the first memtable out of the history
WriteBufferManager wb3(options.db_write_buffer_size);
MemTable* mem3 = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb3,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem3->Ref();
list.Add(mem3, &to_delete);
ASSERT_EQ(1, list.NumNotFlushed());
@ -420,7 +420,7 @@ TEST_F(MemTableListTest, FlushPendingTest) {
MutableCFOptions mutable_cf_options(options);
for (int i = 0; i < num_tables; i++) {
MemTable* mem = new MemTable(cmp, ioptions, mutable_cf_options, &wb,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem->Ref();
std::string value;

2
db/write_batch_test.cc
View File

@ -34,7 +34,7 @@ static std::string PrintContents(WriteBatch* b) {
ImmutableCFOptions ioptions(options);
WriteBufferManager wb(options.db_write_buffer_size);
MemTable* mem = new MemTable(cmp, ioptions, MutableCFOptions(options), &wb,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
mem->Ref();
std::string state;
ColumnFamilyMemTablesDefault cf_mems_default(mem);

12
include/rocksdb/memtablerep.h
View File

@ -216,10 +216,18 @@ class MemTableRep {
class MemTableRepFactory {
public:
virtual ~MemTableRepFactory() {}
virtual MemTableRep* CreateMemTableRep(const MemTableRep::KeyComparator&,
MemTableAllocator*,
const SliceTransform*,
Logger* logger) = 0;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& key_cmp, MemTableAllocator* allocator,
const SliceTransform* slice_transform, Logger* logger,
uint32_t /* column_family_id */) {
return CreateMemTableRep(key_cmp, allocator, slice_transform, logger);
}
virtual const char* Name() const = 0;
// Return true if the current MemTableRep supports concurrent inserts
@ -238,6 +246,7 @@ class SkipListFactory : public MemTableRepFactory {
public:
explicit SkipListFactory(size_t lookahead = 0) : lookahead_(lookahead) {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(const MemTableRep::KeyComparator&,
MemTableAllocator*,
const SliceTransform*,
@ -264,10 +273,13 @@ class VectorRepFactory : public MemTableRepFactory {
public:
explicit VectorRepFactory(size_t count = 0) : count_(count) { }
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(const MemTableRep::KeyComparator&,
MemTableAllocator*,
const SliceTransform*,
Logger* logger) override;
virtual const char* Name() const override {
return "VectorRepFactory";
}

1
memtable/hash_cuckoo_rep.h
View File

@ -28,6 +28,7 @@ class HashCuckooRepFactory : public MemTableRepFactory {
virtual ~HashCuckooRepFactory() {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
const SliceTransform* transform, Logger* logger) override;

1
memtable/hash_linklist_rep.h
View File

@ -28,6 +28,7 @@ class HashLinkListRepFactory : public MemTableRepFactory {
virtual ~HashLinkListRepFactory() {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
const SliceTransform* transform, Logger* logger) override;

1
memtable/hash_skiplist_rep.h
View File

@ -25,6 +25,7 @@ class HashSkipListRepFactory : public MemTableRepFactory {
virtual ~HashSkipListRepFactory() {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
const SliceTransform* transform, Logger* logger) override;

9
table/table_test.cc
View File

@ -429,7 +429,7 @@ class MemTableConstructor: public Constructor {
ImmutableCFOptions ioptions(options_);
memtable_ =
new MemTable(internal_comparator_, ioptions, MutableCFOptions(options_),
wb, kMaxSequenceNumber);
wb, kMaxSequenceNumber, 0 /* column_family_id */);
memtable_->Ref();
}
~MemTableConstructor() {
@ -443,7 +443,7 @@ class MemTableConstructor: public Constructor {
ImmutableCFOptions mem_ioptions(ioptions);
memtable_ = new MemTable(internal_comparator_, mem_ioptions,
MutableCFOptions(options_), write_buffer_manager_,
kMaxSequenceNumber);
kMaxSequenceNumber, 0 /* column_family_id */);
memtable_->Ref();
int seq = 1;
for (const auto kv : kv_map) {
@ -2594,8 +2594,9 @@ TEST_F(MemTableTest, Simple) {
options.memtable_factory = table_factory;
ImmutableCFOptions ioptions(options);
WriteBufferManager wb(options.db_write_buffer_size);
MemTable* memtable = new MemTable(cmp, ioptions, MutableCFOptions(options),
&wb, kMaxSequenceNumber);
MemTable* memtable =
new MemTable(cmp, ioptions, MutableCFOptions(options), &wb,
kMaxSequenceNumber, 0 /* column_family_id */);
memtable->Ref();
WriteBatch batch;
WriteBatchInternal::SetSequence(&batch, 100);