seaweedfs/weed/mq/pub_balancer/partition_list_broker.go
Chris Lu 580940bf82
Merge accumulated changes related to message queue (#5098)
* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* tracking topic=>broker

* merge

* comment
2023-12-11 12:05:54 -08:00

51 lines
1.4 KiB
Go

package pub_balancer
import (
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
)
type PartitionSlotToBroker struct {
RangeStart int32
RangeStop int32
AssignedBroker string
}
type PartitionSlotToBrokerList struct {
PartitionSlots []*PartitionSlotToBroker
RingSize int32
}
func NewPartitionSlotToBrokerList(ringSize int32) *PartitionSlotToBrokerList {
return &PartitionSlotToBrokerList{
RingSize: ringSize,
}
}
func (ps *PartitionSlotToBrokerList) AddBroker(partition *mq_pb.Partition, broker string) {
for _, partitionSlot := range ps.PartitionSlots {
if partitionSlot.RangeStart == partition.RangeStart && partitionSlot.RangeStop == partition.RangeStop {
if partitionSlot.AssignedBroker == broker {
return
}
if partitionSlot.AssignedBroker != "" {
glog.V(0).Infof("partition %s broker change: %s => %s", partition, partitionSlot.AssignedBroker, broker)
}
partitionSlot.AssignedBroker = broker
return
}
}
ps.PartitionSlots = append(ps.PartitionSlots, &PartitionSlotToBroker{
RangeStart: partition.RangeStart,
RangeStop: partition.RangeStop,
AssignedBroker: broker,
})
}
func (ps *PartitionSlotToBrokerList) RemoveBroker(broker string) {
for _, partitionSlot := range ps.PartitionSlots {
if partitionSlot.AssignedBroker == broker {
partitionSlot.AssignedBroker = ""
}
}
}