ARCHIVE/clio
1
0
Fork 0
mirror of https://github.com/XRPLF/clio.git synced 2026-07-26 16:40:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat: Choose writer by cluster communication (#2830)

Browse Source 
Fixes #1974
This commit is contained in:
Sergey Kuznetsov
2026-01-21 11:41:26 +00:00
committed by GitHub
parent 0ebbaaadef
commit a72e5a180f
44 changed files with 3579 additions and 537 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/cluster/ClioNode.cpp
View File

@@ -19,6 +19,7 @@
#include "cluster/ClioNode.hpp"
#include "etl/WriterState.hpp"
#include "util/TimeUtils.hpp"
#include <boost/json/conversion.hpp>
@@ -26,39 +27,72 @@
#include <boost/json/value.hpp>
#include <boost/uuid/uuid.hpp>
#include <chrono>
#include <cstdint>
#include <memory>
#include <stdexcept>
#include <string>
#include <string_view>
#include <utility>
namespace cluster {
namespace {
struct Fields {
struct JsonFields {
static constexpr std::string_view const kUPDATE_TIME = "update_time";
static constexpr std::string_view const kDB_ROLE = "db_role";
};
} // namespace
ClioNode
ClioNode::from(ClioNode::Uuid uuid, etl::WriterStateInterface const& writerState)
{
auto const dbRole = [&writerState]() {
if (writerState.isReadOnly()) {
return ClioNode::DbRole::ReadOnly;
}
if (writerState.isFallback()) {
return ClioNode::DbRole::Fallback;
}
if (writerState.isLoadingCache()) {
return ClioNode::DbRole::LoadingCache;
}
return writerState.isWriting() ? ClioNode::DbRole::Writer : ClioNode::DbRole::NotWriter;
}();
return ClioNode{.uuid = std::move(uuid), .updateTime = std::chrono::system_clock::now(), .dbRole = dbRole};
}
void
tag_invoke(boost::json::value_from_tag, boost::json::value& jv, ClioNode const& node)
{
jv = {
{Fields::kUPDATE_TIME, util::systemTpToUtcStr(node.updateTime, ClioNode::kTIME_FORMAT)},
{JsonFields::kUPDATE_TIME, util::systemTpToUtcStr(node.updateTime, ClioNode::kTIME_FORMAT)},
{JsonFields::kDB_ROLE, static_cast<int64_t>(node.dbRole)}
};
}
ClioNode
tag_invoke(boost::json::value_to_tag<ClioNode>, boost::json::value const& jv)
{
auto const& updateTimeStr = jv.as_object().at(Fields::kUPDATE_TIME).as_string();
auto const& updateTimeStr = jv.as_object().at(JsonFields::kUPDATE_TIME).as_string();
auto const updateTime = util::systemTpFromUtcStr(std::string(updateTimeStr), ClioNode::kTIME_FORMAT);
if (!updateTime.has_value()) {
throw std::runtime_error("Failed to parse update time");
}
return ClioNode{.uuid = std::make_shared<boost::uuids::uuid>(), .updateTime = updateTime.value()};
auto const dbRoleValue = jv.as_object().at(JsonFields::kDB_ROLE).as_int64();
if (dbRoleValue > static_cast<int64_t>(ClioNode::DbRole::MAX))
throw std::runtime_error("Invalid db_role value");
return ClioNode{
// Json data doesn't contain uuid so leaving it empty here. It will be filled outside of this parsing
.uuid = std::make_shared<boost::uuids::uuid>(),
.updateTime = updateTime.value(),
.dbRole = static_cast<ClioNode::DbRole>(dbRoleValue)
};
}
} // namespace cluster