seaweedfs/weed/mq/pub_balancer/partition_list_broker.go

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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 20:05:54 +00:00
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 = ""
}
}
}