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Merged
On1x merged 2 commits into from
Apr 26, 2026
Merged

fix(database): add startup delay before emergency consensus activation #94

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2f69957
fix(database): add startup delay before emergency consensus activation
On1x Apr 26, 2026
9dc6b7c
feat(database): add operation guard system for concurrent access prot…
On1x Apr 26, 2026
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246 changes: 198 additions & 48 deletions ...verview/Core Libraries/Chain Library/Database Management/Database Management.md
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12 changes: 6 additions & 6 deletions ...itecture Overview/Core Libraries/Chain Library/Fork Resolution and Consensus.md
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Expand Up @@ -95,10 +95,10 @@ FD --> END6
- [fork_database.hpp:1-144](file://libraries/chain/include/graphene/chain/fork_database.hpp#L1-L144)
- [fork_database.cpp:1-278](file://libraries/chain/fork_database.cpp#L1-L278)
- [database.hpp:1-200](file://libraries/chain/include/graphene/chain/database.hpp#L1-L200)
- [database.cpp:1-6480](file://libraries/chain/database.cpp#L1-L6480)
- [database.cpp:1-6506](file://libraries/chain/database.cpp#L1-L6506)
- [dlt_block_log.hpp:1-76](file://libraries/chain/include/graphene/chain/dlt_block_log.hpp#L1-L76)
- [dlt_block_log.cpp:1-454](file://libraries/chain/dlt_block_log.cpp#L1-L454)
- [witness.cpp:1-695](file://plugins/witness/witness.cpp#L1-L695)
- [witness.cpp:1-697](file://plugins/witness/witness.cpp#L1-L697)
- [config.hpp:110-124](file://libraries/protocol/include/graphene/protocol/config.hpp#L110-L124)
- [12.hf:1-7](file://libraries/chain/hardfork.d/12.hf#L1-L7)

Expand Down Expand Up @@ -866,17 +866,17 @@ PRUNE["remove_blocks_by_number()"] --> FDB

**Diagram sources**
- [fork_database.cpp:1-278](file://libraries/chain/fork_database.cpp#L1-L278)
- [database.cpp:1-6480](file://libraries/chain/database.cpp#L1-L6480)
- [database.cpp:1-6506](file://libraries/chain/database.cpp#L1-L6506)
- [dlt_block_log.cpp:1-454](file://libraries/chain/dlt_block_log.cpp#L1-L454)
- [witness.cpp:1-695](file://plugins/witness/witness.cpp#L1-L695)
- [witness.cpp:1-697](file://plugins/witness/witness.cpp#L1-L697)
- [config.hpp:110-124](file://libraries/protocol/include/graphene/protocol/config.hpp#L110-L124)
- [12.hf:1-7](file://libraries/chain/hardfork.d/12.hf#L1-L7)

**Section sources**
- [fork_database.cpp:1-278](file://libraries/chain/fork_database.cpp#L1-L278)
- [database.cpp:1-6480](file://libraries/chain/database.cpp#L1-L6480)
- [database.cpp:1-6506](file://libraries/chain/database.cpp#L1-L6506)
- [dlt_block_log.cpp:1-454](file://libraries/chain/dlt_block_log.cpp#L1-L454)
- [witness.cpp:1-695](file://plugins/witness/witness.cpp#L1-L695)
- [witness.cpp:1-697](file://plugins/witness/witness.cpp#L1-L697)
- [config.hpp:110-124](file://libraries/protocol/include/graphene/protocol/config.hpp#L110-L124)
- [12.hf:1-7](file://libraries/chain/hardfork.d/12.hf#L1-L7)

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313 changes: 186 additions & 127 deletions .qoder/repowiki/en/content/Core Libraries/Emergency Consensus System.md
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2 changes: 1 addition & 1 deletion .qoder/repowiki/en/meta/repowiki-metadata.json
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230 changes: 124 additions & 106 deletions libraries/chain/database.cpp
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5 changes: 5 additions & 0 deletions libraries/chain/include/graphene/chain/database.hpp
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Expand Up @@ -645,6 +645,11 @@ namespace graphene { namespace chain {
bool _skip_virtual_ops = false;
bool _enable_plugins_on_push_transaction = false;

/// Wall-clock time when the database was opened (node startup).
/// Used to delay emergency consensus activation until the node
/// has had time to sync with peers.
fc::time_point _node_startup_time;

flat_map<std::string, std::shared_ptr<custom_operation_interpreter>> _custom_operation_interpreters;
std::string _json_schema;
};
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5 changes: 5 additions & 0 deletions libraries/protocol/include/graphene/protocol/config.hpp
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Expand Up @@ -111,6 +111,11 @@
/// this many seconds since the last irreversible block.
#define CHAIN_EMERGENCY_CONSENSUS_TIMEOUT_SEC 3600 // 1 hour

/// Minimum wall-clock time (seconds) after node startup before emergency
/// consensus mode may be activated. This gives the node time to sync
/// with peers before considering the network stalled.
#define CHAIN_EMERGENCY_STARTUP_DELAY_SEC 600 // 10 minutes

/// The witness account name that produces blocks during emergency mode
#define CHAIN_EMERGENCY_WITNESS_ACCOUNT CHAIN_COMMITTEE_ACCOUNT // "committee"

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5 changes: 5 additions & 0 deletions libraries/protocol/include/graphene/protocol/config_testnet.hpp
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Expand Up @@ -111,6 +111,11 @@
/// this many seconds since the last irreversible block.
#define CHAIN_EMERGENCY_CONSENSUS_TIMEOUT_SEC 3600 // 1 hour

/// Minimum wall-clock time (seconds) after node startup before emergency
/// consensus mode may be activated. This gives the node time to sync
/// with peers before considering the network stalled.
#define CHAIN_EMERGENCY_STARTUP_DELAY_SEC 600 // 10 minutes

/// The witness account name that produces blocks during emergency mode
#define CHAIN_EMERGENCY_WITNESS_ACCOUNT CHAIN_COMMITTEE_ACCOUNT // "committee"

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