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2025-02-27 21:53:53 +08:00
commit 815e55e4c0
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24
src/mgmtd/ops/GetPrimaryMgmtdOperation.cc Normal file
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#include "GetPrimaryMgmtdOperation.h"
#include "mgmtd/service/helpers.h"
namespace hf3fs::mgmtd {
CoTryTask<GetPrimaryMgmtdRsp> GetPrimaryMgmtdOperation::handle(MgmtdState &state) const {
CO_RETURN_ON_ERROR(state.validateClusterId(*this, req.clusterId));
auto now = state.utcNow();
auto lease = co_await state.currentLease(now);
if (lease.has_value()) {
co_return GetPrimaryMgmtdRsp::create(std::move(lease->primary));
}
auto handler = [&](kv::IReadOnlyTransaction &txn) -> CoTryTask<std::optional<flat::MgmtdLeaseInfo>> {
co_return co_await state.store_.loadMgmtdLeaseInfo(txn);
};
auto res = co_await kv::WithTransaction(state.createRetryStrategy())
.run(state.env_->kvEngine()->createReadonlyTransaction(), std::move(handler));
CO_RETURN_ON_ERROR(res);
if (res->has_value()) {
co_return GetPrimaryMgmtdRsp::create(std::move(res->value().primary));
}
co_return GetPrimaryMgmtdRsp::create(std::nullopt);
}
} // namespace hf3fs::mgmtd