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raft cluster

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wip: raft does not care about migrating

wip: optimize code

wip: raft election

wip

wip: fix raft leader missing log entries

wip

fix a dead lock

batch set slot route

wip: raft persist

wip

refactor cluster suite

remove relay

rename relay2

refactor: allow customizing client factory

test raft

refactor re-balance

avoid errors caused by inconsistent status on follower nodes during raft commits

test raft election
This commit is contained in:
finley
2023-01-02 21:27:06 +08:00
parent df672d4c92
commit bf7f628810
54 changed files with 3122 additions and 703 deletions
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36
cluster/rename.go
View File

@@ -8,16 +8,16 @@ import (
)
// Rename renames a key, the origin and the destination must within the same node
func Rename(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
if len(args) != 3 {
func Rename(cluster *Cluster, c redis.Connection, cmdLine [][]byte) redis.Reply {
if len(cmdLine) != 3 {
return protocol.MakeErrReply("ERR wrong number of arguments for 'rename' command")
}
srcKey := string(args[1])
destKey := string(args[2])
srcNode := cluster.peerPicker.PickNode(srcKey)
destNode := cluster.peerPicker.PickNode(destKey)
srcKey := string(cmdLine[1])
destKey := string(cmdLine[2])
srcNode := cluster.pickNodeAddrByKey(srcKey)
destNode := cluster.pickNodeAddrByKey(destKey)
if srcNode == destNode { // do fast
return cluster.relay(srcNode, c, args)
return cluster.relay(srcNode, c, modifyCmd(cmdLine, "Rename_"))
}
groupMap := map[string][]string{
srcNode: {srcKey},
@@ -26,7 +26,7 @@ func Rename(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
txID := cluster.idGenerator.NextID()
txIDStr := strconv.FormatInt(txID, 10)
// prepare rename from
srcPrepareResp := cluster.relayPrepare(srcNode, c, makeArgs("Prepare", txIDStr, "RenameFrom", srcKey))
srcPrepareResp := cluster.relay(srcNode, c, makeArgs("Prepare", txIDStr, "RenameFrom", srcKey))
if protocol.IsErrorReply(srcPrepareResp) {
// rollback src node
requestRollback(cluster, c, txID, map[string][]string{srcNode: {srcKey}})
@@ -38,7 +38,7 @@ func Rename(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
return protocol.MakeErrReply("ERR invalid prepare response")
}
// prepare rename to
destPrepareResp := cluster.relayPrepare(destNode, c, utils.ToCmdLine3("Prepare", []byte(txIDStr),
destPrepareResp := cluster.relay(destNode, c, utils.ToCmdLine3("Prepare", []byte(txIDStr),
[]byte("RenameTo"), []byte(destKey), srcPrepareMBR.Args[0], srcPrepareMBR.Args[1]))
if protocol.IsErrorReply(destPrepareResp) {
// rollback src node
@@ -92,16 +92,16 @@ func init() {
// RenameNx renames a key, only if the new key does not exist.
// The origin and the destination must within the same node
func RenameNx(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
if len(args) != 3 {
func RenameNx(cluster *Cluster, c redis.Connection, cmdLine [][]byte) redis.Reply {
if len(cmdLine) != 3 {
return protocol.MakeErrReply("ERR wrong number of arguments for 'renamenx' command")
}
srcKey := string(args[1])
destKey := string(args[2])
srcNode := cluster.peerPicker.PickNode(srcKey)
destNode := cluster.peerPicker.PickNode(destKey)
srcKey := string(cmdLine[1])
destKey := string(cmdLine[2])
srcNode := cluster.pickNodeAddrByKey(srcKey)
destNode := cluster.pickNodeAddrByKey(destKey)
if srcNode == destNode {
return cluster.relay(srcNode, c, args)
return cluster.relay(srcNode, c, modifyCmd(cmdLine, "RenameNX_"))
}
groupMap := map[string][]string{
srcNode: {srcKey},
@@ -110,7 +110,7 @@ func RenameNx(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
txID := cluster.idGenerator.NextID()
txIDStr := strconv.FormatInt(txID, 10)
// prepare rename from
srcPrepareResp := cluster.relayPrepare(srcNode, c, makeArgs("Prepare", txIDStr, "RenameFrom", srcKey))
srcPrepareResp := cluster.relay(srcNode, c, makeArgs("Prepare", txIDStr, "RenameFrom", srcKey))
if protocol.IsErrorReply(srcPrepareResp) {
// rollback src node
requestRollback(cluster, c, txID, map[string][]string{srcNode: {srcKey}})
@@ -122,7 +122,7 @@ func RenameNx(cluster *Cluster, c redis.Connection, args [][]byte) redis.Reply {
return protocol.MakeErrReply("ERR invalid prepare response")
}
// prepare rename to
destPrepareResp := cluster.relayPrepare(destNode, c, utils.ToCmdLine3("Prepare", []byte(txIDStr),
destPrepareResp := cluster.relay(destNode, c, utils.ToCmdLine3("Prepare", []byte(txIDStr),
[]byte("RenameNxTo"), []byte(destKey), srcPrepareMBR.Args[0], srcPrepareMBR.Args[1]))
if protocol.IsErrorReply(destPrepareResp) {
// rollback src node