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Fix race in StorageSystemRocksDB truncate
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parent
81a051e3ee
commit
9ca9a66a70
@ -36,6 +36,8 @@
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#include <rocksdb/convenience.h>
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#include <filesystem>
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#include <mutex>
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#include <shared_mutex>
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namespace fs = std::filesystem;
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@ -213,9 +215,9 @@ public:
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std::vector<rocksdb::Slice> slices_keys(num_keys);
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const auto & sample_block = metadata_snapshot->getSampleBlock();
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const auto & key_column = sample_block.getByName(storage.primary_key);
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const auto & key_column = sample_block.getByName(storage.getPrimaryKey());
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auto columns = sample_block.cloneEmptyColumns();
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size_t primary_key_pos = sample_block.getPositionByName(storage.primary_key);
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size_t primary_key_pos = sample_block.getPositionByName(storage.getPrimaryKey());
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size_t rows_processed = 0;
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while (it < end && rows_processed < max_block_size)
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@ -230,8 +232,7 @@ public:
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}
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std::vector<String> values;
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auto statuses = storage.rocksdb_ptr->MultiGet(rocksdb::ReadOptions(), slices_keys, &values);
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auto statuses = storage.multiGet(slices_keys, values);
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for (size_t i = 0; i < statuses.size(); ++i)
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{
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if (statuses[i].ok())
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@ -285,7 +286,10 @@ StorageEmbeddedRocksDB::StorageEmbeddedRocksDB(const StorageID & table_id_,
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void StorageEmbeddedRocksDB::truncate(const ASTPtr &, const StorageMetadataPtr & , ContextPtr, TableExclusiveLockHolder &)
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{
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std::unique_lock<std::shared_mutex> lock(rocksdb_ptr_mx);
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rocksdb_ptr->Close();
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rocksdb_ptr = nullptr;
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fs::remove_all(rocksdb_dir);
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fs::create_directories(rocksdb_dir);
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initDb();
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@ -460,9 +464,20 @@ static StoragePtr create(const StorageFactory::Arguments & args)
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std::shared_ptr<rocksdb::Statistics> StorageEmbeddedRocksDB::getRocksDBStatistics() const
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{
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std::shared_lock<std::shared_mutex> lock(rocksdb_ptr_mx);
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if (!rocksdb_ptr)
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return nullptr;
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return rocksdb_ptr->GetOptions().statistics;
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}
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std::vector<rocksdb::Status> StorageEmbeddedRocksDB::multiGet(const std::vector<rocksdb::Slice> & slices_keys, std::vector<String> & values) const
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{
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std::shared_lock<std::shared_mutex> lock(rocksdb_ptr_mx);
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if (!rocksdb_ptr)
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return {};
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return rocksdb_ptr->MultiGet(rocksdb::ReadOptions(), slices_keys, &values);
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}
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void registerStorageEmbeddedRocksDB(StorageFactory & factory)
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{
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StorageFactory::StorageFeatures features{
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@ -1,14 +1,17 @@
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#pragma once
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#include <memory>
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#include <shared_mutex>
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#include <common/shared_ptr_helper.h>
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#include <Storages/IStorage.h>
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#include <rocksdb/status.h>
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namespace rocksdb
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{
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class DB;
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class Statistics;
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class Slice;
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}
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@ -20,7 +23,6 @@ class Context;
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class StorageEmbeddedRocksDB final : public shared_ptr_helper<StorageEmbeddedRocksDB>, public IStorage, WithContext
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{
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friend struct shared_ptr_helper<StorageEmbeddedRocksDB>;
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friend class EmbeddedRocksDBSource;
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friend class EmbeddedRocksDBSink;
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friend class EmbeddedRocksDBBlockInputStream;
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public:
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@ -50,6 +52,8 @@ public:
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Strings getDataPaths() const override { return {rocksdb_dir}; }
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std::shared_ptr<rocksdb::Statistics> getRocksDBStatistics() const;
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std::vector<rocksdb::Status> multiGet(const std::vector<rocksdb::Slice> & slices_keys, std::vector<String> & values) const;
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const String & getPrimaryKey() const { return primary_key; }
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protected:
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StorageEmbeddedRocksDB(const StorageID & table_id_,
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@ -63,6 +67,7 @@ private:
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const String primary_key;
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using RocksDBPtr = std::unique_ptr<rocksdb::DB>;
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RocksDBPtr rocksdb_ptr;
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mutable std::shared_mutex rocksdb_ptr_mx;
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String rocksdb_dir;
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void initDb();
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@ -103,7 +103,7 @@ void StorageSystemRocksDB::fillData(MutableColumns & res_columns, ContextPtr con
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auto statistics = tables[database][table]->getRocksDBStatistics();
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if (!statistics)
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throw Exception(ErrorCodes::LOGICAL_ERROR, "rocksdb statistics is not enabled");
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throw Exception(ErrorCodes::LOGICAL_ERROR, "RocksDB statistics is not avaliable");
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for (auto [tick, name] : rocksdb::TickersNameMap)
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{
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