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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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21
cluster/mset.go
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@@ -22,15 +22,15 @@ func MGet(cluster *Cluster, c redis.Connection, cmdLine CmdLine) redis.Reply {
resultMap := make(map[string][]byte)
groupMap := cluster.groupBy(keys)
for peer, group := range groupMap {
resp := cluster.relay(peer, c, makeArgs("MGET", group...))
for peer, groupKeys := range groupMap {
resp := cluster.relay(peer, c, makeArgs("MGet_", groupKeys...))
if protocol.IsErrorReply(resp) {
errReply := resp.(protocol.ErrorReply)
return protocol.MakeErrReply(fmt.Sprintf("ERR during get %s occurs: %v", group[0], errReply.Error()))
return protocol.MakeErrReply(fmt.Sprintf("ERR during get %s occurs: %v", groupKeys[0], errReply.Error()))
}
arrReply, _ := resp.(*protocol.MultiBulkReply)
for i, v := range arrReply.Args {
key := group[i]
key := groupKeys[i]
resultMap[key] = v
}
}
@@ -59,7 +59,7 @@ func MSet(cluster *Cluster, c redis.Connection, cmdLine CmdLine) redis.Reply {
groupMap := cluster.groupBy(keys)
if len(groupMap) == 1 && allowFastTransaction { // do fast
for peer := range groupMap {
return cluster.relay(peer, c, cmdLine)
return cluster.relay(peer, c, modifyCmd(cmdLine, "MSet_"))
}
}
@@ -73,12 +73,7 @@ func MSet(cluster *Cluster, c redis.Connection, cmdLine CmdLine) redis.Reply {
for _, k := range group {
peerArgs = append(peerArgs, k, valueMap[k])
}
var resp redis.Reply
if peer == cluster.self {
resp = execPrepare(cluster, c, makeArgs("Prepare", peerArgs...))
} else {
resp = cluster.relay(peer, c, makeArgs("Prepare", peerArgs...))
}
resp := cluster.relay(peer, c, makeArgs("Prepare", peerArgs...))
if protocol.IsErrorReply(resp) {
errReply = resp
rollback = true
@@ -117,7 +112,7 @@ func MSetNX(cluster *Cluster, c redis.Connection, cmdLine CmdLine) redis.Reply {
groupMap := cluster.groupBy(keys)
if len(groupMap) == 1 && allowFastTransaction { // do fast
for peer := range groupMap {
return cluster.relay(peer, c, cmdLine)
return cluster.relay(peer, c, modifyCmd(cmdLine, "MSetNX_"))
}
}
@@ -133,7 +128,7 @@ func MSetNX(cluster *Cluster, c redis.Connection, cmdLine CmdLine) redis.Reply {
for _, k := range group {
nodeArgs = append(nodeArgs, k, valueMap[k])
}
resp := cluster.relayPrepare(node, c, makeArgs("Prepare", nodeArgs...))
resp := cluster.relay(node, c, makeArgs("Prepare", nodeArgs...))
if protocol.IsErrorReply(resp) {
re := resp.(protocol.ErrorReply)
if re.Error() == keyExistsErr {