seaweedfs/weed/pb/mq.proto

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syntax = "proto3";
package messaging_pb;
option go_package = "github.com/seaweedfs/seaweedfs/weed/pb/mq_pb";
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option java_package = "seaweedfs.mq";
option java_outer_classname = "MessagQueueProto";
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//////////////////////////////////////////////////
service SeaweedMessaging {
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// control plane
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rpc FindBrokerLeader (FindBrokerLeaderRequest) returns (FindBrokerLeaderResponse) {
}
rpc AssignSegmentBrokers (AssignSegmentBrokersRequest) returns (AssignSegmentBrokersResponse) {
}
rpc CheckSegmentStatus (CheckSegmentStatusRequest) returns (CheckSegmentStatusResponse) {
}
rpc CheckBrokerLoad (CheckBrokerLoadRequest) returns (CheckBrokerLoadResponse) {
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}
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// control plane for balancer
rpc ConnectToBalancer (stream ConnectToBalancerRequest) returns (stream ConnectToBalancerResponse) {
}
// control plane for topic partitions
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rpc LookupTopicBrokers (LookupTopicBrokersRequest) returns (LookupTopicBrokersResponse) {
}
// a pub client will call this to get the topic partitions assignment
rpc RequestTopicPartitions (RequestTopicPartitionsRequest) returns (RequestTopicPartitionsResponse) {
}
rpc AssignTopicPartitions (AssignTopicPartitionsRequest) returns (AssignTopicPartitionsResponse) {
}
rpc CheckTopicPartitionsStatus (CheckTopicPartitionsStatusRequest) returns (CheckTopicPartitionsStatusResponse) {
}
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// data plane
rpc Publish (stream PublishRequest) returns (stream PublishResponse) {
}
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rpc Subscribe (SubscribeRequest) returns (stream SubscribeResponse) {
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}
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}
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//////////////////////////////////////////////////
message SegmentInfo {
Segment segment = 1;
int64 start_ts_ns = 2;
repeated string brokers = 3;
int64 stop_ts_ns = 4;
repeated int32 previous_segments = 5;
repeated int32 next_segments = 6;
}
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//////////////////////////////////////////////////
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message FindBrokerLeaderRequest {
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string filer_group = 1;
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}
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message FindBrokerLeaderResponse {
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string broker = 1;
}
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message Topic {
string namespace = 1;
string name = 2;
}
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message Partition {
int32 ring_size = 1;
int32 range_start = 2;
int32 range_stop = 3;
}
message Segment {
string namespace = 1;
string topic = 2;
int32 id = 3;
Partition partition = 4;
}
message AssignSegmentBrokersRequest {
Segment segment = 1;
}
message AssignSegmentBrokersResponse {
repeated string brokers = 1;
}
message CheckSegmentStatusRequest {
Segment segment = 1;
}
message CheckSegmentStatusResponse {
bool is_active = 1;
}
message CheckBrokerLoadRequest {
}
message CheckBrokerLoadResponse {
int64 message_count = 1;
int64 bytes_count = 2;
}
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//////////////////////////////////////////////////
message BrokerStats {
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int32 cpu_usage_percent = 1;
map<string, TopicPartitionStats> stats = 2;
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}
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message TopicPartitionStats {
Topic topic = 1;
Partition partition = 2;
int32 consumer_count = 3;
bool is_leader = 4;
}
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message ConnectToBalancerRequest {
message InitMessage {
string broker = 1;
}
oneof message {
InitMessage init = 1;
BrokerStats stats = 2;
}
}
message ConnectToBalancerResponse {
}
//////////////////////////////////////////////////
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message LookupTopicBrokersRequest {
Topic topic = 1;
bool is_for_publish = 2;
}
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message LookupTopicBrokersResponse {
Topic topic = 1;
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repeated BrokerPartitionAssignment broker_partition_assignments = 2;
}
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message BrokerPartitionAssignment {
Partition partition = 1;
string leader_broker = 2;
repeated string follower_brokers = 3;
}
message RequestTopicPartitionsRequest {
Topic topic = 1;
int32 partition_count = 2;
}
message RequestTopicPartitionsResponse {
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repeated BrokerPartitionAssignment broker_partition_assignments = 1;
}
message AssignTopicPartitionsRequest {
Topic topic = 1;
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repeated BrokerPartitionAssignment broker_partition_assignments = 2;
bool is_leader = 3;
}
message AssignTopicPartitionsResponse {
}
message CheckTopicPartitionsStatusRequest {
string namespace = 1;
string topic = 2;
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BrokerPartitionAssignment broker_partition_assignment = 3;
bool should_cancel_if_not_match = 4;
}
message CheckTopicPartitionsStatusResponse {
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repeated BrokerPartitionAssignment broker_partition_assignments = 1;
}
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//////////////////////////////////////////////////
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message DataMessage {
bytes key = 1;
bytes value = 2;
}
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message PublishRequest {
message InitMessage {
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Topic topic = 1;
Partition partition = 2;
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int32 ack_interval = 3;
}
oneof message {
InitMessage init = 1;
DataMessage data = 2;
}
int64 sequence = 3;
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}
message PublishResponse {
int64 ack_sequence = 1;
string error = 2;
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string redirect_to_broker = 3;
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}
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message SubscribeRequest {
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message Consumer {
string consumer_group = 1;
string consumer_id = 2;
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string client_id = 3;
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}
message Cursor {
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Topic topic = 1;
Partition partition = 2;
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oneof offset {
int64 start_offset = 3;
int64 start_timestamp_ns = 4;
}
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string filter = 5;
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}
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Consumer consumer = 1;
Cursor cursor = 2;
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}
message SubscribeResponse {
message CtrlMessage {
string error = 1;
string redirect_to_broker = 2;
}
oneof message {
CtrlMessage ctrl = 1;
DataMessage data = 2;
}
}