mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-11 00:42:29 +00:00
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
#pragma once
|
|
|
|
#include <Interpreters/IInterpreter.h>
|
|
#include <Parsers/IAST_fwd.h>
|
|
#include <Storages/IStorage_fwd.h>
|
|
#include <Interpreters/StorageID.h>
|
|
#include <Common/ActionLock.h>
|
|
#include <Disks/IVolume.h>
|
|
|
|
|
|
namespace Poco { class Logger; }
|
|
|
|
namespace DB
|
|
{
|
|
|
|
class Context;
|
|
class AccessRightsElements;
|
|
class ASTSystemQuery;
|
|
class IDatabase;
|
|
|
|
using DatabasePtr = std::shared_ptr<IDatabase>;
|
|
|
|
|
|
/** Implement various SYSTEM queries.
|
|
* Examples: SYSTEM SHUTDOWN, SYSTEM DROP MARK CACHE.
|
|
*
|
|
* Some commands are intended to stop/start background actions for tables and comes with two variants:
|
|
*
|
|
* 1. SYSTEM STOP MERGES table, SYSTEM START MERGES table
|
|
* - start/stop actions for specific table.
|
|
*
|
|
* 2. SYSTEM STOP MERGES, SYSTEM START MERGES
|
|
* - start/stop actions for all existing tables.
|
|
* Note that the actions for tables that will be created after this query will not be affected.
|
|
*/
|
|
class InterpreterSystemQuery : public IInterpreter, WithMutableContext
|
|
{
|
|
public:
|
|
InterpreterSystemQuery(const ASTPtr & query_ptr_, ContextMutablePtr context_);
|
|
|
|
BlockIO execute() override;
|
|
|
|
static void startStopActionInDatabase(StorageActionBlockType action_type, bool start,
|
|
const String & database_name, const DatabasePtr & database,
|
|
const ContextPtr & local_context, Poco::Logger * log);
|
|
|
|
private:
|
|
ASTPtr query_ptr;
|
|
Poco::Logger * log = nullptr;
|
|
StorageID table_id = StorageID::createEmpty(); /// Will be set up if query contains table name
|
|
VolumePtr volume_ptr;
|
|
|
|
/// Tries to get a replicated table and restart it
|
|
/// Returns pointer to a newly created table if the restart was successful
|
|
StoragePtr tryRestartReplica(const StorageID & replica, ContextMutablePtr context, bool need_ddl_guard = true);
|
|
|
|
void restartReplica(const StorageID & replica, ContextMutablePtr system_context);
|
|
void restartReplicas(ContextMutablePtr system_context);
|
|
void syncReplica();
|
|
void waitLoadingParts();
|
|
|
|
void syncReplicatedDatabase(ASTSystemQuery & query);
|
|
|
|
void syncTransactionLog();
|
|
|
|
void restoreReplica();
|
|
|
|
void dropReplica(ASTSystemQuery & query);
|
|
bool dropReplicaImpl(ASTSystemQuery & query, const StoragePtr & table);
|
|
void dropDatabaseReplica(ASTSystemQuery & query);
|
|
void flushDistributed(ASTSystemQuery & query);
|
|
[[noreturn]] void restartDisk(String & name);
|
|
|
|
AccessRightsElements getRequiredAccessForDDLOnCluster() const;
|
|
void startStopAction(StorageActionBlockType action_type, bool start);
|
|
};
|
|
|
|
|
|
}
|