107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
/*
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* TenantManagement.actor.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string>
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#include <map>
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#include "fdbclient/Atomic.h"
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#include "fdbclient/SystemData.h"
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#include "fdbclient/TenantManagement.actor.h"
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#include "fdbclient/Tuple.h"
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#include "flow/Trace.h"
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#include "flow/actorcompiler.h" // has to be last include
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namespace TenantAPI {
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TenantMode tenantModeForClusterType(ClusterType clusterType, TenantMode tenantMode) {
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if (clusterType == ClusterType::METACLUSTER_MANAGEMENT) {
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return TenantMode::DISABLED;
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} else if (clusterType == ClusterType::METACLUSTER_DATA) {
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return TenantMode::REQUIRED;
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} else {
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return tenantMode;
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}
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}
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int64_t extractTenantIdFromMutation(MutationRef m) {
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ASSERT(!isSystemKey(m.param1));
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if (isSingleKeyMutation((MutationRef::Type)m.type)) {
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// The first 8 bytes of the key of this OP is also an 8-byte number
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if (m.type == MutationRef::SetVersionstampedKey && m.param1.size() >= 4) {
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// when the timestamp overlap with first 8 bytes
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if (parseVersionstampOffset(m.param1) < 8) {
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return TenantInfo::INVALID_TENANT;
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}
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}
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} else {
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// Assumes clear range mutations are split on tenant boundaries
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ASSERT_EQ(m.type, MutationRef::Type::ClearRange);
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}
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return extractTenantIdFromKeyRef(m.param1);
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}
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int64_t extractTenantIdFromKeyRef(StringRef s) {
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if (s.size() < TenantAPI::PREFIX_SIZE) {
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return TenantInfo::INVALID_TENANT;
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}
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// Parse mutation key to determine tenant prefix
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StringRef prefix = s.substr(0, TenantAPI::PREFIX_SIZE);
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return TenantAPI::prefixToId(prefix, EnforceValidTenantId::False);
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}
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bool tenantMapChanging(MutationRef const& mutation, KeyRangeRef const& tenantMapRange) {
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if (isSingleKeyMutation((MutationRef::Type)mutation.type) && mutation.param1.startsWith(tenantMapRange.begin)) {
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return true;
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} else if (mutation.type == MutationRef::ClearRange &&
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tenantMapRange.intersects(KeyRangeRef(mutation.param1, mutation.param2))) {
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return true;
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}
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return false;
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}
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// validates whether the lastTenantId and the nextTenantId share the same 2 byte prefix
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bool nextTenantIdPrefixMatches(int64_t lastTenantId, int64_t nextTenantId) {
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if (getTenantIdPrefix(nextTenantId) != getTenantIdPrefix(lastTenantId)) {
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TraceEvent(g_network->isSimulated() ? SevWarnAlways : SevError, "TenantIdPrefixMismatch")
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.detail("CurrentTenantId", lastTenantId)
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.detail("NewTenantId", nextTenantId)
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.detail("CurrentTenantIdPrefix", getTenantIdPrefix(lastTenantId))
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.detail("NewTenantIdPrefix", getTenantIdPrefix(nextTenantId));
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return false;
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}
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return true;
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}
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// returns the maximum allowable tenant id in which the 2 byte prefix is not overriden
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int64_t getMaxAllowableTenantId(int64_t curTenantId) {
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// The maximum tenant id allowed is 1 for the first 48 bits (6 bytes) with the first 16 bits (2 bytes) being the
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// tenant prefix
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int64_t maxTenantId = curTenantId | 0xFFFFFFFFFFFFLL;
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ASSERT(maxTenantId > 0);
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return maxTenantId;
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}
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int64_t getTenantIdPrefix(int64_t tenantId) {
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return tenantId >> 48;
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}
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} // namespace TenantAPI
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