2512ecb701
New PeerManager, Allocator, Informer components have been added along with a new "replication_factor" configuration option. First, cluster peers collect and push metrics (Informer) to the Cluster leader regularly. The Informer is an interface that can be implemented in custom wayts to support custom metrics. Second, on a pin operation, using the information from the collected metrics, an Allocator can provide a list of preferences as to where the new pin should be assigned. The Allocator is an interface allowing to provide different allocation strategies. Both Allocator and Informer are Cluster Componenets, and have access to the RPC API. The allocations are kept in the shared state. Cluster peer failure detection is still missing and re-allocation is still missing, although re-pinning something when a node is down/metrics missing does re-allocate the pin somewhere else. License: MIT Signed-off-by: Hector Sanjuan <hector@protocol.ai>
116 lines
2.3 KiB
Go
116 lines
2.3 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/ipfs/ipfs-cluster/api"
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)
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const (
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formatNone = iota
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formatID
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formatGPInfo
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formatString
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formatVersion
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formatCidArg
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)
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type format int
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func textFormat(body []byte, format int) {
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if len(body) < 2 {
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fmt.Println("")
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}
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slice := body[0] == '['
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if slice {
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textFormatSlice(body, format)
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} else {
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textFormatObject(body, format)
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}
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}
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func textFormatObject(body []byte, format int) {
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switch format {
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case formatID:
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var obj api.IDSerial
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textFormatDecodeOn(body, &obj)
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textFormatPrintIDSerial(&obj)
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case formatGPInfo:
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var obj api.GlobalPinInfoSerial
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textFormatDecodeOn(body, &obj)
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textFormatPrintGPinfo(&obj)
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case formatVersion:
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var obj api.Version
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textFormatDecodeOn(body, &obj)
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textFormatPrintVersion(&obj)
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case formatCidArg:
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var obj api.CidArgSerial
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textFormatDecodeOn(body, &obj)
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textFormatPrintCidArg(&obj)
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default:
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var obj interface{}
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textFormatDecodeOn(body, &obj)
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fmt.Printf("%s\n", obj)
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}
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}
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func textFormatSlice(body []byte, format int) {
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var rawMsg []json.RawMessage
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textFormatDecodeOn(body, &rawMsg)
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for _, raw := range rawMsg {
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textFormatObject(raw, format)
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}
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}
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func textFormatDecodeOn(body []byte, obj interface{}) {
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checkErr("decoding JSON", json.Unmarshal(body, obj))
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}
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func textFormatPrintIDSerial(obj *api.IDSerial) {
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if obj.Error != "" {
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fmt.Printf("%s | ERROR: %s\n", obj.ID, obj.Error)
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return
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}
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fmt.Printf("%s | %d peers\n", obj.ID, len(obj.ClusterPeers))
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fmt.Println(" > Addresses:")
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for _, a := range obj.Addresses {
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fmt.Printf(" - %s\n", a)
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}
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if obj.IPFS.Error != "" {
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fmt.Printf(" > IPFS ERROR: %s\n", obj.IPFS.Error)
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return
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}
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fmt.Printf(" > IPFS: %s\n", obj.IPFS.ID)
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for _, a := range obj.IPFS.Addresses {
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fmt.Printf(" - %s\n", a)
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}
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}
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func textFormatPrintGPinfo(obj *api.GlobalPinInfoSerial) {
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fmt.Printf("%s:\n", obj.Cid)
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for k, v := range obj.PeerMap {
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if v.Error != "" {
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fmt.Printf(" - %s ERROR: %s\n", k, v.Error)
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continue
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}
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fmt.Printf(" > Peer %s: %s | %s\n", k, strings.ToUpper(v.Status), v.TS)
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}
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}
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func textFormatPrintVersion(obj *api.Version) {
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fmt.Println(obj.Version)
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}
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func textFormatPrintCidArg(obj *api.CidArgSerial) {
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fmt.Printf("%s | Allocations: ", obj.Cid)
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if obj.Everywhere {
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fmt.Printf("[everywhere]\n")
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} else {
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fmt.Printf("%s", obj.Allocations)
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}
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}
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