gvsafronov/futriix
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Properly handle case where we delete a key that doesn't exist while a write batch is active (#550)

Browse Source
This commit is contained in:
Malavan Sotheeswaran 2023-01-23 16:21:27 -05:00 committed by GitHub
parent c3343ddbd7
commit d7c34a8ced
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/storage/rocksdb.cpp
View File

@ -100,14 +100,14 @@ bool RocksDBStorageProvider::erase(const char *key, size_t cchKey)
{
rocksdb::Status status;
std::unique_lock<fastlock> l(m_lock);
if (!FKeyExists(key, cchKey))
return false;
if (m_spbatch != nullptr)
{
status = m_spbatch->Delete(m_spcolfamily.get(), rocksdb::Slice(key, cchKey));
}
else
{
if (!FKeyExists(key, cchKey))
return false;
status = m_spdb->Delete(WriteOptions(), m_spcolfamily.get(), rocksdb::Slice(key, cchKey));
}
if (status.ok())
@ -202,12 +202,12 @@ rocksdb::WriteOptions RocksDBStorageProvider::WriteOptions() const
void RocksDBStorageProvider::beginWriteBatch()
{
m_lock.lock();
m_spbatch = std::make_unique<rocksdb::WriteBatch>();
m_spbatch = std::make_unique<rocksdb::WriteBatchWithIndex>();
}
void RocksDBStorageProvider::endWriteBatch()
{
m_spdb->Write(WriteOptions(), m_spbatch.get());
m_spdb->Write(WriteOptions(), m_spbatch.get()->GetWriteBatch());
m_spbatch = nullptr;
m_lock.unlock();
}
@ -230,5 +230,7 @@ void RocksDBStorageProvider::flush()
bool RocksDBStorageProvider::FKeyExists(const char *key, size_t cch) const
{
rocksdb::PinnableSlice slice;
if (m_spbatch)
return m_spbatch->GetFromBatchAndDB(m_spdb.get(), ReadOptions(), m_spcolfamily.get(), rocksdb::Slice(key, cch), &slice).ok();
return m_spdb->Get(ReadOptions(), m_spcolfamily.get(), rocksdb::Slice(key, cch), &slice).ok();
}

3
src/storage/rocksdb.h
View File

@ -3,6 +3,7 @@
#include <memory>
#include "../IStorage.h"
#include <rocksdb/db.h>
#include <rocksdb/utilities/write_batch_with_index.h>
#include "../fastlock.h"
#define INTERNAL_KEY_PREFIX "\x00\x04\x03\x00\x05\x02\x04"
@ -15,7 +16,7 @@ class RocksDBStorageProvider : public IStorage
{
RocksDBStorageFactory *m_pfactory;
std::shared_ptr<rocksdb::DB> m_spdb; // Note: This must be first so it is deleted last
std::unique_ptr<rocksdb::WriteBatch> m_spbatch;
std::unique_ptr<rocksdb::WriteBatchWithIndex> m_spbatch;
const rocksdb::Snapshot *m_psnapshot = nullptr;
std::shared_ptr<rocksdb::ColumnFamilyHandle> m_spcolfamily;
rocksdb::ReadOptions m_readOptionsTemplate;