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Merge locks into one #3904

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merged 2 commits into from
Feb 25, 2022
Merged

Merge locks into one #3904

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1d98cbd
fix lock
darionyaphet Feb 11, 2022
2041892
increase heartbeat lock to avoid blocking
darionyaphet Feb 24, 2022
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2 changes: 1 addition & 1 deletion src/clients/meta/MetaClient.h
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Expand Up @@ -220,8 +220,8 @@ class MetaClient {
FRIEND_TEST(MetaClientTest, RetryUntilLimitTest);
FRIEND_TEST(MetaClientTest, RocksdbOptionsTest);
FRIEND_TEST(MetaClientTest, VerifyClientTest);
friend class KillQueryMetaWrapper;
FRIEND_TEST(ChainAddEdgesTest, AddEdgesLocalTest);
friend class KillQueryMetaWrapper;
friend class storage::MetaClientTestUpdater;

public:
Expand Down
2 changes: 0 additions & 2 deletions src/meta/ActiveHostsMan.cpp
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Expand Up @@ -64,7 +64,6 @@ nebula::cpp2::ErrorCode ActiveHostsMan::updateHostInfo(kvstore::KVStore* kv,
bool hasUpdate = !data.empty();
data.emplace_back(MetaKeyUtils::hostKey(hostAddr.host, hostAddr.port), HostInfo::encodeV2(info));

folly::SharedMutex::WriteHolder wHolder(LockUtils::spaceLock());
folly::Baton<true, std::atomic> baton;
nebula::cpp2::ErrorCode ret;
kv->asyncMultiPut(
Expand Down Expand Up @@ -266,7 +265,6 @@ nebula::cpp2::ErrorCode LastUpdateTimeMan::update(kvstore::KVStore* kv,
data.emplace_back(MetaKeyUtils::lastUpdateTimeKey(),
MetaKeyUtils::lastUpdateTimeVal(timeInMilliSec));

folly::SharedMutex::WriteHolder wHolder(LockUtils::lastUpdateTimeLock());
folly::Baton<true, std::atomic> baton;
nebula::cpp2::ErrorCode ret;
kv->asyncMultiPut(
Expand Down
4 changes: 2 additions & 2 deletions src/meta/http/MetaHttpReplaceHostHandler.cpp
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Expand Up @@ -106,7 +106,7 @@ void MetaHttpReplaceHostHandler::onError(ProxygenError error) noexcept {
}

bool MetaHttpReplaceHostHandler::replaceHostInPart(std::string ipv4From, std::string ipv4To) {
folly::SharedMutex::WriteHolder wHolder(LockUtils::spaceLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
const auto& spacePrefix = MetaKeyUtils::spacePrefix();
std::unique_ptr<kvstore::KVIterator> iter;
auto kvRet = kvstore_->prefix(kDefaultSpaceId, kDefaultPartId, spacePrefix, &iter);
Expand Down Expand Up @@ -163,7 +163,7 @@ bool MetaHttpReplaceHostHandler::replaceHostInPart(std::string ipv4From, std::st
}

bool MetaHttpReplaceHostHandler::replaceHostInZone(std::string ipv4From, std::string ipv4To) {
folly::SharedMutex::WriteHolder wHolder(LockUtils::spaceLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
const auto& zonePrefix = MetaKeyUtils::zonePrefix();
std::unique_ptr<kvstore::KVIterator> iter;
auto kvRet = kvstore_->prefix(kDefaultSpaceId, kDefaultPartId, zonePrefix, &iter);
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6 changes: 0 additions & 6 deletions src/meta/processors/BaseProcessor-inl.h
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Expand Up @@ -134,7 +134,6 @@ ErrorOr<nebula::cpp2::ErrorCode, std::vector<std::string>> BaseProcessor<RESP>::

template <typename RESP>
ErrorOr<nebula::cpp2::ErrorCode, int32_t> BaseProcessor<RESP>::autoIncrementId() {
folly::SharedMutex::WriteHolder holder(LockUtils::idLock());
const std::string kIdKey = MetaKeyUtils::idKey();
int32_t id;
std::string val;
Expand Down Expand Up @@ -186,9 +185,6 @@ ErrorOr<nebula::cpp2::ErrorCode, int32_t> BaseProcessor<RESP>::getAvailableGloba
template <typename RESP>
ErrorOr<nebula::cpp2::ErrorCode, int32_t> BaseProcessor<RESP>::autoIncrementIdInSpace(
GraphSpaceID spaceId) {
folly::SharedMutex::WriteHolder wHolder(LockUtils::localIdLock());
folly::SharedMutex::ReadHolder rHolder(LockUtils::idLock());

auto localIdkey = MetaKeyUtils::localIdKey(spaceId);
int32_t id;
std::string val;
Expand Down Expand Up @@ -228,7 +224,6 @@ ErrorOr<nebula::cpp2::ErrorCode, int32_t> BaseProcessor<RESP>::autoIncrementIdIn

template <typename RESP>
nebula::cpp2::ErrorCode BaseProcessor<RESP>::spaceExist(GraphSpaceID spaceId) {
folly::SharedMutex::ReadHolder rHolder(LockUtils::spaceLock());
auto spaceKey = MetaKeyUtils::spaceKey(spaceId);
auto ret = doGet(std::move(spaceKey));
if (nebula::ok(ret)) {
Expand Down Expand Up @@ -617,7 +612,6 @@ ErrorOr<nebula::cpp2::ErrorCode, ZoneID> BaseProcessor<RESP>::getZoneId(
template <typename RESP>
nebula::cpp2::ErrorCode BaseProcessor<RESP>::listenerExist(GraphSpaceID space,
cpp2::ListenerType type) {
folly::SharedMutex::ReadHolder rHolder(LockUtils::listenerLock());
const auto& prefix = MetaKeyUtils::listenerPrefix(space, type);
auto ret = doPrefix(prefix);
if (!nebula::ok(ret)) {
Expand Down
37 changes: 13 additions & 24 deletions src/meta/processors/Common.h
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Expand Up @@ -14,32 +14,21 @@ namespace meta {
class LockUtils {
public:
LockUtils() = delete;
#define GENERATE_LOCK(Entry) \
static folly::SharedMutex& Entry##Lock() { \
static folly::SharedMutex l; \
return l; \

static folly::SharedMutex& lock() {
static folly::SharedMutex lock;
return lock;
}

static folly::SharedMutex& snapshotLock() {
static folly::SharedMutex snapshotLock;
return snapshotLock;
}

GENERATE_LOCK(lastUpdateTime);
GENERATE_LOCK(space);
GENERATE_LOCK(id);
GENERATE_LOCK(workerId);
GENERATE_LOCK(localId);
GENERATE_LOCK(tagAndEdge);
GENERATE_LOCK(tagIndex);
GENERATE_LOCK(edgeIndex);
GENERATE_LOCK(service);
GENERATE_LOCK(fulltextIndex);
GENERATE_LOCK(user);
GENERATE_LOCK(config);
GENERATE_LOCK(snapshot);
GENERATE_LOCK(group);
GENERATE_LOCK(zone);
GENERATE_LOCK(listener);
GENERATE_LOCK(session);
GENERATE_LOCK(machine);

#undef GENERATE_LOCK
static folly::SharedMutex& sessionLock() {
static folly::SharedMutex sessionLock;
return sessionLock;
}
};

} // namespace meta
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1 change: 1 addition & 0 deletions src/meta/processors/admin/AgentHBProcessor.cpp
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Expand Up @@ -28,6 +28,7 @@ void AgentHBProcessor::process(const cpp2::AgentHBReq& req) {
HostAddr agentAddr((*req.host_ref()).host, (*req.host_ref()).port);
LOG(INFO) << "Receive heartbeat from " << agentAddr << ", role = AGENT";

folly::SharedMutex::WriteHolder holder(LockUtils::lock());
nebula::cpp2::ErrorCode ret = nebula::cpp2::ErrorCode::SUCCEEDED;
do {
// update agent host info
Expand Down
10 changes: 2 additions & 8 deletions src/meta/processors/admin/CreateBackupProcessor.cpp
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Expand Up @@ -15,7 +15,6 @@ namespace meta {

ErrorOr<nebula::cpp2::ErrorCode, std::unordered_set<GraphSpaceID>>
CreateBackupProcessor::spaceNameToId(const std::vector<std::string>* backupSpaces) {
folly::SharedMutex::ReadHolder rHolder(LockUtils::spaceLock());
std::unordered_set<GraphSpaceID> spaces;

bool allSpaces = backupSpaces == nullptr || backupSpaces->empty();
Expand Down Expand Up @@ -98,8 +97,7 @@ void CreateBackupProcessor::process(const cpp2::CreateBackupReq& req) {
return;
}

folly::SharedMutex::WriteHolder wHolder(LockUtils::snapshotLock());

folly::SharedMutex::WriteHolder holder(LockUtils::snapshotLock());
// get active storage host list
auto activeHostsRet = ActiveHostsMan::getActiveHosts(kvstore_);
if (!nebula::ok(activeHostsRet)) {
Expand Down Expand Up @@ -239,11 +237,7 @@ void CreateBackupProcessor::process(const cpp2::CreateBackupReq& req) {
backup.backup_name_ref() = std::move(backupName);
backup.full_ref() = true;
bool allSpaces = backupSpaces == nullptr || backupSpaces->empty();
if (allSpaces) {
backup.all_spaces_ref() = true;
} else {
backup.all_spaces_ref() = false;
}
backup.all_spaces_ref() = allSpaces;
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backup.create_time_ref() = time::WallClock::fastNowInMilliSec();

handleErrorCode(nebula::cpp2::ErrorCode::SUCCEEDED);
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2 changes: 1 addition & 1 deletion src/meta/processors/admin/CreateSnapshotProcessor.cpp
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Expand Up @@ -31,7 +31,7 @@ void CreateSnapshotProcessor::process(const cpp2::CreateSnapshotReq&) {
}

auto snapshot = folly::sformat("SNAPSHOT_{}", MetaKeyUtils::genTimestampStr());
folly::SharedMutex::WriteHolder wHolder(LockUtils::snapshotLock());
folly::SharedMutex::WriteHolder holder(LockUtils::snapshotLock());

auto activeHostsRet = ActiveHostsMan::getActiveHosts(kvstore_);
if (!nebula::ok(activeHostsRet)) {
Expand Down
10 changes: 3 additions & 7 deletions src/meta/processors/admin/DropSnapshotProcessor.cpp
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Expand Up @@ -13,7 +13,7 @@ namespace meta {

void DropSnapshotProcessor::process(const cpp2::DropSnapshotReq& req) {
auto& snapshot = req.get_name();
folly::SharedMutex::WriteHolder wHolder(LockUtils::snapshotLock());
folly::SharedMutex::WriteHolder holder(LockUtils::snapshotLock());

// Check snapshot is exists
auto key = MetaKeyUtils::snapshotKey(snapshot);
Expand Down Expand Up @@ -53,9 +53,7 @@ void DropSnapshotProcessor::process(const cpp2::DropSnapshotReq& req) {
MetaKeyUtils::snapshotVal(cpp2::SnapshotStatus::INVALID, hosts));
auto putRet = doSyncPut(std::move(data));
if (putRet != nebula::cpp2::ErrorCode::SUCCEEDED) {
LOG(INFO) << "Update snapshot status error. "
"snapshot : "
<< snapshot;
LOG(INFO) << "Update snapshot status error. snapshot: " << snapshot;
}
handleErrorCode(putRet);
onFinished();
Expand All @@ -72,9 +70,7 @@ void DropSnapshotProcessor::process(const cpp2::DropSnapshotReq& req) {
MetaKeyUtils::snapshotVal(cpp2::SnapshotStatus::INVALID, hosts));
auto putRet = doSyncPut(std::move(data));
if (putRet != nebula::cpp2::ErrorCode::SUCCEEDED) {
LOG(INFO) << "Update snapshot status error. "
"snapshot : "
<< snapshot;
LOG(INFO) << "Update snapshot status error. snapshot: " << snapshot;
}
handleErrorCode(putRet);
onFinished();
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2 changes: 1 addition & 1 deletion src/meta/processors/admin/HBProcessor.cpp
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Expand Up @@ -32,7 +32,7 @@ void HBProcessor::process(const cpp2::HBReq& req) {
auto role = req.get_role();
LOG(INFO) << "Receive heartbeat from " << host
<< ", role = " << apache::thrift::util::enumNameSafe(role);

folly::SharedMutex::WriteHolder holder(LockUtils::lock());
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Since heartbeat's num is way more than other meta processor, do we really have to add write lock here? What we need to write here is only related to one host.

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Mainly to prevent inconsistencies when reading data, this writing method is more strict.

if (role == cpp2::HostRole::STORAGE) {
if (!ActiveHostsMan::machineRegisted(kvstore_, host)) {
LOG(INFO) << "Machine " << host << " is not registed";
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3 changes: 2 additions & 1 deletion src/meta/processors/admin/ListClusterInfoProcessor.cpp
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Expand Up @@ -26,10 +26,11 @@ void ListClusterInfoProcessor::process(const cpp2::ListClusterInfoReq& req) {
std::unordered_map<std::string, std::vector<cpp2::ServiceInfo>> hostServices;

// non-meta services, may include inactive services
folly::SharedMutex::ReadHolder holder(LockUtils::lock());
const auto& hostPrefix = MetaKeyUtils::hostPrefix();
auto iterRet = doPrefix(hostPrefix);
if (!nebula::ok(iterRet)) {
LOG(INFO) << "get host prefix failed:"
LOG(INFO) << "get host prefix failed: "
<< apache::thrift::util::enumNameSafe(nebula::error(iterRet));
handleErrorCode(nebula::cpp2::ErrorCode::E_LIST_CLUSTER_FAILURE);
onFinished();
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3 changes: 2 additions & 1 deletion src/meta/processors/admin/ListSnapshotsProcessor.cpp
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Expand Up @@ -11,6 +11,7 @@ namespace nebula {
namespace meta {

void ListSnapshotsProcessor::process(const cpp2::ListSnapshotsReq&) {
folly::SharedMutex::ReadHolder holder(LockUtils::lock());
const auto& prefix = MetaKeyUtils::snapshotPrefix();
auto iterRet = doPrefix(prefix);
if (!nebula::ok(iterRet)) {
Expand All @@ -20,8 +21,8 @@ void ListSnapshotsProcessor::process(const cpp2::ListSnapshotsReq&) {
onFinished();
return;
}
auto iter = nebula::value(iterRet).get();

auto iter = nebula::value(iterRet).get();
std::vector<nebula::meta::cpp2::Snapshot> snapshots;
while (iter->valid()) {
auto val = iter->val();
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4 changes: 2 additions & 2 deletions src/meta/processors/admin/RestoreProcessor.cpp
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Expand Up @@ -13,7 +13,7 @@ namespace meta {
nebula::cpp2::ErrorCode RestoreProcessor::replaceHostInPartition(const HostAddr& ipv4From,
const HostAddr& ipv4To,
bool direct) {
folly::SharedMutex::WriteHolder wHolder(LockUtils::spaceLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
auto retCode = nebula::cpp2::ErrorCode::SUCCEEDED;
const auto& spacePrefix = MetaKeyUtils::spacePrefix();
auto iterRet = doPrefix(spacePrefix, direct);
Expand Down Expand Up @@ -83,7 +83,7 @@ nebula::cpp2::ErrorCode RestoreProcessor::replaceHostInPartition(const HostAddr&
nebula::cpp2::ErrorCode RestoreProcessor::replaceHostInZone(const HostAddr& ipv4From,
const HostAddr& ipv4To,
bool direct) {
folly::SharedMutex::WriteHolder wHolder(LockUtils::spaceLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
auto retCode = nebula::cpp2::ErrorCode::SUCCEEDED;
const auto& zonePrefix = MetaKeyUtils::zonePrefix();
auto iterRet = doPrefix(zonePrefix, direct);
Expand Down
2 changes: 1 addition & 1 deletion src/meta/processors/admin/SnapShot.cpp
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Expand Up @@ -106,6 +106,7 @@ nebula::cpp2::ErrorCode Snapshot::blockingWrites(storage::cpp2::EngineSignType s
for (const auto& [host, spaces] : hostSpaces) {
LOG(INFO) << "will block write host: " << host;
auto result = client_->blockingWrites(spaces, sign, host).get();
LOG(INFO) << "after block write host";
if (!result.ok()) {
LOG(INFO) << "Send blocking sign error on host " << host
<< ", errorcode: " << result.status().toString();
Expand All @@ -120,7 +121,6 @@ nebula::cpp2::ErrorCode Snapshot::blockingWrites(storage::cpp2::EngineSignType s

ErrorOr<nebula::cpp2::ErrorCode, std::map<HostAddr, std::set<GraphSpaceID>>>
Snapshot::getHostSpaces() {
folly::SharedMutex::ReadHolder rHolder(LockUtils::spaceLock());
const auto& prefix = MetaKeyUtils::partPrefix();
std::unique_ptr<kvstore::KVIterator> iter;
auto retCode = kv_->prefix(kDefaultSpaceId, kDefaultPartId, prefix, &iter);
Expand Down
2 changes: 1 addition & 1 deletion src/meta/processors/config/GetConfigProcessor.cpp
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Expand Up @@ -15,7 +15,7 @@ void GetConfigProcessor::process(const cpp2::GetConfigReq& req) {
auto code = nebula::cpp2::ErrorCode::SUCCEEDED;

do {
folly::SharedMutex::ReadHolder rHolder(LockUtils::configLock());
folly::SharedMutex::ReadHolder holder(LockUtils::lock());
if (module != cpp2::ConfigModule::ALL) {
code = getOneConfig(module, name, items);
if (code != nebula::cpp2::ErrorCode::SUCCEEDED) {
Expand Down
4 changes: 2 additions & 2 deletions src/meta/processors/config/ListConfigsProcessor.cpp
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Expand Up @@ -9,7 +9,7 @@ namespace nebula {
namespace meta {

void ListConfigsProcessor::process(const cpp2::ListConfigsReq& req) {
folly::SharedMutex::ReadHolder rHolder(LockUtils::configLock());
folly::SharedMutex::ReadHolder holder(LockUtils::lock());

const auto& prefix = MetaKeyUtils::configKeyPrefix(req.get_module());
auto iterRet = doPrefix(prefix);
Expand All @@ -20,8 +20,8 @@ void ListConfigsProcessor::process(const cpp2::ListConfigsReq& req) {
onFinished();
return;
}
auto iter = nebula::value(iterRet).get();

auto iter = nebula::value(iterRet).get();
std::vector<cpp2::ConfigItem> items;
while (iter->valid()) {
auto key = iter->key();
Expand Down
2 changes: 1 addition & 1 deletion src/meta/processors/config/RegConfigProcessor.cpp
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Expand Up @@ -11,7 +11,7 @@ namespace meta {
void RegConfigProcessor::process(const cpp2::RegConfigReq& req) {
std::vector<kvstore::KV> data;
{
folly::SharedMutex::WriteHolder wHolder(LockUtils::configLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
for (const auto& item : req.get_items()) {
auto module = item.get_module();
auto name = item.get_name();
Expand Down
4 changes: 2 additions & 2 deletions src/meta/processors/config/SetConfigProcessor.cpp
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Expand Up @@ -16,8 +16,8 @@ void SetConfigProcessor::process(const cpp2::SetConfigReq& req) {
auto name = req.get_item().get_name();
auto value = req.get_item().get_value();

folly::SharedMutex::WriteHolder wHolder(LockUtils::configLock());
auto code = nebula::cpp2::ErrorCode::SUCCEEDED;
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
nebula::cpp2::ErrorCode code = nebula::cpp2::ErrorCode::SUCCEEDED;
do {
if (module != cpp2::ConfigModule::ALL) {
// When we set config of a specified module, check if it exists.
Expand Down
20 changes: 4 additions & 16 deletions src/meta/processors/id/GetWorkerIdProcessor.cpp
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Expand Up @@ -20,7 +20,7 @@ void GetWorkerIdProcessor::process(const cpp2::GetWorkerIdReq& req) {
return;
}

folly::SharedMutex::WriteHolder wHolder(LockUtils::workerIdLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
auto newResult = doGet(kIdKey);
if (!nebula::ok(newResult)) {
handleErrorCode(nebula::cpp2::ErrorCode::E_WORKER_ID_FAILED);
Expand All @@ -29,25 +29,13 @@ void GetWorkerIdProcessor::process(const cpp2::GetWorkerIdReq& req) {
}

int64_t workerId = std::stoi(std::move(nebula::value(newResult)));
resp_.workerid_ref() = workerId;
handleErrorCode(nebula::cpp2::ErrorCode::SUCCEEDED);

// TODO: (jackwener) limit worker, add LOG ERROR
doPut(std::vector<kvstore::KV>{{ipAddr, std::to_string(workerId + 1)}});

handleErrorCode(nebula::cpp2::ErrorCode::SUCCEEDED);
resp_.workerid_ref() = workerId;
onFinished();
}

void GetWorkerIdProcessor::doPut(std::vector<kvstore::KV> data) {
folly::Baton<true, std::atomic> baton;
kvstore_->asyncMultiPut(kDefaultSpaceId,
kDefaultPartId,
std::move(data),
[this, &baton](nebula::cpp2::ErrorCode code) {
this->handleErrorCode(code);
baton.post();
});
baton.wait();
}

} // namespace meta
} // namespace nebula
2 changes: 0 additions & 2 deletions src/meta/processors/id/GetWorkerIdProcessor.h
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Expand Up @@ -36,8 +36,6 @@ class GetWorkerIdProcessor : public BaseProcessor<cpp2::GetWorkerIdResp> {
UNUSED(once);
}

void doPut(std::vector<kvstore::KV> data);

inline static const string kIdKey = "snowflake_worker_id";
};

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2 changes: 1 addition & 1 deletion src/meta/processors/index/CreateEdgeIndexProcessor.cpp
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Expand Up @@ -37,7 +37,7 @@ void CreateEdgeIndexProcessor::process(const cpp2::CreateEdgeIndexReq& req) {
}

folly::SharedMutex::ReadHolder rHolder(LockUtils::snapshotLock());
folly::SharedMutex::WriteHolder wHolder(LockUtils::edgeIndexLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
auto ret = getIndexID(space, indexName);
if (nebula::ok(ret)) {
if (req.get_if_not_exists()) {
Expand Down
2 changes: 1 addition & 1 deletion src/meta/processors/index/CreateTagIndexProcessor.cpp
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Expand Up @@ -37,7 +37,7 @@ void CreateTagIndexProcessor::process(const cpp2::CreateTagIndexReq& req) {
}

folly::SharedMutex::ReadHolder rHolder(LockUtils::snapshotLock());
folly::SharedMutex::WriteHolder wHolder(LockUtils::tagIndexLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());
auto ret = getIndexID(space, indexName);
if (nebula::ok(ret)) {
if (req.get_if_not_exists()) {
Expand Down
2 changes: 1 addition & 1 deletion src/meta/processors/index/DropEdgeIndexProcessor.cpp
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Expand Up @@ -12,7 +12,7 @@ void DropEdgeIndexProcessor::process(const cpp2::DropEdgeIndexReq& req) {
auto spaceID = req.get_space_id();
const auto& indexName = req.get_index_name();
CHECK_SPACE_ID_AND_RETURN(spaceID);
folly::SharedMutex::WriteHolder wHolder(LockUtils::edgeIndexLock());
folly::SharedMutex::WriteHolder holder(LockUtils::lock());

auto edgeIndexIDRet = getIndexID(spaceID, indexName);
if (!nebula::ok(edgeIndexIDRet)) {
Expand Down
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