seaweedfs/weed/topology/volume_location_list.go

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package topology
import (
"fmt"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
)
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type VolumeLocationList struct {
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list []*DataNode
}
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func NewVolumeLocationList() *VolumeLocationList {
return &VolumeLocationList{}
}
func (dnll *VolumeLocationList) String() string {
return fmt.Sprintf("%v", dnll.list)
}
func (dnll *VolumeLocationList) Copy() *VolumeLocationList {
list := make([]*DataNode, len(dnll.list))
copy(list, dnll.list)
return &VolumeLocationList{
list: list,
}
}
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func (dnll *VolumeLocationList) Head() *DataNode {
//mark first node as master volume
return dnll.list[0]
}
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func (dnll *VolumeLocationList) Length() int {
adding locking to avoid nil VolumeLocationList fix panic: runtime error: invalid memory address or nil pointer dereference Oct 22 00:53:44 bedb-master1 weed[8055]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x17658da] Oct 22 00:53:44 bedb-master1 weed[8055]: goroutine 310 [running]: Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/topology.(*VolumeLocationList).Length(...) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/topology/volume_location_list.go:35 Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/topology.(*VolumeLayout).enoughCopies(...) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/topology/volume_layout.go:376 Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/topology.(*VolumeLayout).ensureCorrectWritables(0xc000111d50, 0xc000b55438) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/topology/volume_layout.go:202 +0x5a Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/topology.(*Topology).SyncDataNodeRegistration(0xc00042ac60, 0xc001454d30, 0x1, 0x1, 0xc0005fc000, 0xc00135de40, 0x4, 0xc00135de50, 0x10, 0x10d, ...) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/topology/topology.go:224 +0x616 Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/server.(*MasterServer).SendHeartbeat(0xc000162700, 0x23b97c0, 0xc000ae2c90, 0x0, 0x0) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/server/master_grpc_server.go:106 +0x325 Oct 22 00:53:44 bedb-master1 weed[8055]: github.com/chrislusf/seaweedfs/weed/pb/master_pb._Seaweed_SendHeartbeat_Handler(0x1f8e7c0, 0xc000162700, 0x23b0a60, 0xc00024b440, 0x3172c38, 0xc000ab7100) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/seaweedfs/weed/pb/master_pb/master.pb.go:4250 +0xad Oct 22 00:53:44 bedb-master1 weed[8055]: google.golang.org/grpc.(*Server).processStreamingRPC(0xc0001f31e0, 0x23bb800, 0xc000ac5500, 0xc000ab7100, 0xc0001fea80, 0x311fec0, 0x0, 0x0, 0x0) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/go/pkg/mod/google.golang.org/grpc@v1.29.1/server.go:1329 +0xcd8 Oct 22 00:53:44 bedb-master1 weed[8055]: google.golang.org/grpc.(*Server).handleStream(0xc0001f31e0, 0x23bb800, 0xc000ac5500, 0xc000ab7100, 0x0) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/go/pkg/mod/google.golang.org/grpc@v1.29.1/server.go:1409 +0xc5c Oct 22 00:53:44 bedb-master1 weed[8055]: google.golang.org/grpc.(*Server).serveStreams.func1.1(0xc0001ce8b0, 0xc0001f31e0, 0x23bb800, 0xc000ac5500, 0xc000ab7100) Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/go/pkg/mod/google.golang.org/grpc@v1.29.1/server.go:746 +0xa5 Oct 22 00:53:44 bedb-master1 weed[8055]: created by google.golang.org/grpc.(*Server).serveStreams.func1 Oct 22 00:53:44 bedb-master1 weed[8055]: #011/root/go/pkg/mod/google.golang.org/grpc@v1.29.1/server.go:744 +0xa5 Oct 22 00:53:44 bedb-master1 systemd[1]: weedmaster.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Oct 22 00:53:44 bedb-master1 systemd[1]: weedmaster.service: Failed with result 'exit-code'.
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if dnll == nil {
return 0
}
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return len(dnll.list)
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}
func (dnll *VolumeLocationList) Set(loc *DataNode) {
for i := 0; i < len(dnll.list); i++ {
if loc.Ip == dnll.list[i].Ip && loc.Port == dnll.list[i].Port {
dnll.list[i] = loc
return
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}
}
dnll.list = append(dnll.list, loc)
}
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func (dnll *VolumeLocationList) Remove(loc *DataNode) bool {
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for i, dnl := range dnll.list {
if loc.Ip == dnl.Ip && loc.Port == dnl.Port {
dnll.list = append(dnll.list[:i], dnll.list[i+1:]...)
return true
}
}
return false
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}
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func (dnll *VolumeLocationList) Refresh(freshThreshHold int64) {
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var changed bool
for _, dnl := range dnll.list {
if dnl.LastSeen < freshThreshHold {
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changed = true
break
}
}
if changed {
var l []*DataNode
for _, dnl := range dnll.list {
if dnl.LastSeen >= freshThreshHold {
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l = append(l, dnl)
}
}
dnll.list = l
}
}
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func (dnll *VolumeLocationList) Stats(vid needle.VolumeId, freshThreshHold int64) (size uint64, fileCount int) {
for _, dnl := range dnll.list {
if dnl.LastSeen < freshThreshHold {
vinfo, err := dnl.GetVolumesById(vid)
if err == nil {
return vinfo.Size - vinfo.DeletedByteCount, vinfo.FileCount - vinfo.DeleteCount
}
}
}
return 0, 0
}