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47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#pragma once
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#include <Storages/StorageReplicatedMergeTree.h>
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#include <Storages/MergeTree/MergeTreeData.h>
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namespace DB
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{
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/// Special metadata used during freeze table. Required for zero-copy
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/// replication.
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struct FreezeMetaData
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{
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public:
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void fill(const StorageReplicatedMergeTree & storage);
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void save(DiskPtr data_disk, const String & path) const;
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bool load(DiskPtr data_disk, const String & path);
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static void clean(DiskPtr data_disk, const String & path);
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private:
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static String getFileName(const String & path);
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public:
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int version = 2;
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String replica_name;
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String zookeeper_name;
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String table_shared_id;
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};
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class Unfreezer
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{
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public:
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Unfreezer(ContextPtr context);
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PartitionCommandsResultInfo unfreezePartitionsFromTableDirectory(MergeTreeData::MatcherFn matcher, const String & backup_name, const Disks & disks, const fs::path & table_directory);
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BlockIO systemUnfreeze(const String & backup_name);
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private:
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ContextPtr local_context;
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zkutil::ZooKeeperPtr zookeeper;
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Poco::Logger * log = &Poco::Logger::get("Unfreezer");
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static constexpr std::string_view backup_directory_prefix = "shadow";
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static bool removeFreezedPart(DiskPtr disk, const String & path, const String & part_name, ContextPtr local_context, zkutil::ZooKeeperPtr zookeeper);
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};
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}
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