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02529a0fc2
Makes rippled configurable to support deletion of all data in its key-value store (nodestore) and ledger and transaction SQLite databases based on validated ledger sequence numbers. All records from a specified ledger and forward shall remain available in the key-value store and SQLite, and all data prior to that specific ledger may be deleted. Additionally, the administrator may require that an RPC command be executed to enable deletion. This is to align data deletion with local policy.
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_NODESTORE_DATABASEROTATING_H_INCLUDED
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#define RIPPLE_NODESTORE_DATABASEROTATING_H_INCLUDED
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#include <ripple/nodestore/Database.h>
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namespace ripple {
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namespace NodeStore {
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/* This class has two key-value store Backend objects for persisting SHAMap
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* records. This facilitates online deletion of data. New backends are
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* rotated in. Old ones are rotated out and deleted.
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*/
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class DatabaseRotating
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{
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public:
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virtual ~DatabaseRotating() = default;
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virtual TaggedCache <uint256, NodeObject>& getPositiveCache() = 0;
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virtual std::mutex& peekMutex() const = 0;
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virtual std::shared_ptr <Backend> const& getWritableBackend() const = 0;
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virtual std::shared_ptr <Backend> const& getArchiveBackend () const = 0;
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virtual std::shared_ptr <Backend> rotateBackends (
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std::shared_ptr <Backend> const& newBackend) = 0;
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/** Ensure that node is in writableBackend */
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virtual NodeObject::Ptr fetchNode (uint256 const& hash) = 0;
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};
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}
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}
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#endif
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