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refactor: config change

This commit is contained in:
Minghao Li 2022-05-26 14:21:24 +08:00
parent 2dee385502
commit 4e1aa6b5c5
6 changed files with 97 additions and 37 deletions
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3
include/libs/sync/sync.h
View File

@ -88,6 +88,9 @@ typedef struct SReConfigCbMeta {
SyncIndex index; SyncIndex index;
SyncTerm term; SyncTerm term;
SyncTerm currentTerm; SyncTerm currentTerm;
SSyncCfg oldCfg;
bool isDrop;
uint64_t flag;
} SReConfigCbMeta; } SReConfigCbMeta;
typedef struct SSyncFSM { typedef struct SSyncFSM {

2
source/libs/sync/inc/syncInt.h
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@ -182,7 +182,7 @@ int32_t syncNodeSendMsgByInfo(const SNodeInfo* nodeInfo, SSyncNode* pSyncNode, S
cJSON* syncNode2Json(const SSyncNode* pSyncNode); cJSON* syncNode2Json(const SSyncNode* pSyncNode);
char* syncNode2Str(const SSyncNode* pSyncNode); char* syncNode2Str(const SSyncNode* pSyncNode);
char* syncNode2SimpleStr(const SSyncNode* pSyncNode); char* syncNode2SimpleStr(const SSyncNode* pSyncNode);
void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig); void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig, bool* isDrop);
SSyncNode* syncNodeAcquire(int64_t rid); SSyncNode* syncNodeAcquire(int64_t rid);
void syncNodeRelease(SSyncNode* pNode); void syncNodeRelease(SSyncNode* pNode);

41
source/libs/sync/src/syncAppendEntries.c
View File

@ -333,7 +333,7 @@ int32_t syncNodeOnAppendEntriesCb(SSyncNode* ths, SyncAppendEntries* pMsg) {
cbMeta.seqNum = pEntry->seqNum; cbMeta.seqNum = pEntry->seqNum;
cbMeta.term = pEntry->term; cbMeta.term = pEntry->term;
cbMeta.currentTerm = ths->pRaftStore->currentTerm; cbMeta.currentTerm = ths->pRaftStore->currentTerm;
cbMeta.flag = 9; cbMeta.flag = 0x11;
bool needExecute = true; bool needExecute = true;
if (ths->pSnapshot != NULL && cbMeta.index <= ths->pSnapshot->lastApplyIndex) { if (ths->pSnapshot != NULL && cbMeta.index <= ths->pSnapshot->lastApplyIndex) {
@ -347,24 +347,51 @@ int32_t syncNodeOnAppendEntriesCb(SSyncNode* ths, SyncAppendEntries* pMsg) {
// config change // config change
if (pEntry->originalRpcType == TDMT_VND_SYNC_CONFIG_CHANGE) { if (pEntry->originalRpcType == TDMT_VND_SYNC_CONFIG_CHANGE) {
SSyncCfg oldSyncCfg = ths->pRaftCfg->cfg;
SSyncCfg newSyncCfg; SSyncCfg newSyncCfg;
int32_t ret = syncCfgFromStr(rpcMsg.pCont, &newSyncCfg); int32_t ret = syncCfgFromStr(rpcMsg.pCont, &newSyncCfg);
ASSERT(ret == 0); ASSERT(ret == 0);
syncNodeUpdateConfig(ths, &newSyncCfg); // update new config myIndex
if (ths->state == TAOS_SYNC_STATE_LEADER) { bool hit = false;
syncNodeBecomeLeader(ths); for (int i = 0; i < newSyncCfg.replicaNum; ++i) {
} else { if (strcmp(ths->myNodeInfo.nodeFqdn, (newSyncCfg.nodeInfo)[i].nodeFqdn) == 0 &&
syncNodeBecomeFollower(ths); ths->myNodeInfo.nodePort == (newSyncCfg.nodeInfo)[i].nodePort) {
newSyncCfg.myIndex = i;
hit = true;
break;
}
}
ASSERT(hit == true);
bool isDrop;
syncNodeUpdateConfig(ths, &newSyncCfg, &isDrop);
// change isStandBy to normal
if (!isDrop) {
if (ths->state == TAOS_SYNC_STATE_LEADER) {
syncNodeBecomeLeader(ths);
} else {
syncNodeBecomeFollower(ths);
}
} }
// maybe newSyncCfg.myIndex is updated in syncNodeUpdateConfig char* sOld = syncCfg2Str(&oldSyncCfg);
char* sNew = syncCfg2Str(&newSyncCfg);
sInfo("==config change== 0x11 old:%s new:%s isDrop:%d \n", sOld, sNew, isDrop);
taosMemoryFree(sOld);
taosMemoryFree(sNew);
if (ths->pFsm->FpReConfigCb != NULL) { if (ths->pFsm->FpReConfigCb != NULL) {
SReConfigCbMeta cbMeta = {0}; SReConfigCbMeta cbMeta = {0};
cbMeta.code = 0; cbMeta.code = 0;
cbMeta.currentTerm = ths->pRaftStore->currentTerm; cbMeta.currentTerm = ths->pRaftStore->currentTerm;
cbMeta.index = pEntry->index; cbMeta.index = pEntry->index;
cbMeta.term = pEntry->term; cbMeta.term = pEntry->term;
cbMeta.oldCfg = oldSyncCfg;
cbMeta.flag = 0x11;
cbMeta.isDrop = isDrop;
ths->pFsm->FpReConfigCb(ths->pFsm, newSyncCfg, cbMeta); ths->pFsm->FpReConfigCb(ths->pFsm, newSyncCfg, cbMeta);
} }
} }

41
source/libs/sync/src/syncCommit.c
View File

@ -111,7 +111,7 @@ void syncMaybeAdvanceCommitIndex(SSyncNode* pSyncNode) {
cbMeta.seqNum = pEntry->seqNum; cbMeta.seqNum = pEntry->seqNum;
cbMeta.term = pEntry->term; cbMeta.term = pEntry->term;
cbMeta.currentTerm = pSyncNode->pRaftStore->currentTerm; cbMeta.currentTerm = pSyncNode->pRaftStore->currentTerm;
cbMeta.flag = 7; cbMeta.flag = 0x1;
bool needExecute = true; bool needExecute = true;
if (pSyncNode->pSnapshot != NULL && cbMeta.index <= pSyncNode->pSnapshot->lastApplyIndex) { if (pSyncNode->pSnapshot != NULL && cbMeta.index <= pSyncNode->pSnapshot->lastApplyIndex) {
@ -125,24 +125,51 @@ void syncMaybeAdvanceCommitIndex(SSyncNode* pSyncNode) {
// config change // config change
if (pEntry->originalRpcType == TDMT_VND_SYNC_CONFIG_CHANGE) { if (pEntry->originalRpcType == TDMT_VND_SYNC_CONFIG_CHANGE) {
SSyncCfg oldSyncCfg = pSyncNode->pRaftCfg->cfg;
SSyncCfg newSyncCfg; SSyncCfg newSyncCfg;
int32_t ret = syncCfgFromStr(rpcMsg.pCont, &newSyncCfg); int32_t ret = syncCfgFromStr(rpcMsg.pCont, &newSyncCfg);
ASSERT(ret == 0); ASSERT(ret == 0);
syncNodeUpdateConfig(pSyncNode, &newSyncCfg); // update new config myIndex
if (pSyncNode->state == TAOS_SYNC_STATE_LEADER) { bool hit = false;
syncNodeBecomeLeader(pSyncNode); for (int i = 0; i < newSyncCfg.replicaNum; ++i) {
} else { if (strcmp(pSyncNode->myNodeInfo.nodeFqdn, (newSyncCfg.nodeInfo)[i].nodeFqdn) == 0 &&
syncNodeBecomeFollower(pSyncNode); pSyncNode->myNodeInfo.nodePort == (newSyncCfg.nodeInfo)[i].nodePort) {
newSyncCfg.myIndex = i;
hit = true;
break;
}
}
ASSERT(hit == true);
bool isDrop;
syncNodeUpdateConfig(pSyncNode, &newSyncCfg, &isDrop);
// change isStandBy to normal
if (!isDrop) {
if (pSyncNode->state == TAOS_SYNC_STATE_LEADER) {
syncNodeBecomeLeader(pSyncNode);
} else {
syncNodeBecomeFollower(pSyncNode);
}
} }
// maybe newSyncCfg.myIndex is updated in syncNodeUpdateConfig char* sOld = syncCfg2Str(&oldSyncCfg);
char* sNew = syncCfg2Str(&newSyncCfg);
sInfo("==config change== 0x1 old:%s new:%s isDrop:%d \n", sOld, sNew, isDrop);
taosMemoryFree(sOld);
taosMemoryFree(sNew);
if (pSyncNode->pFsm->FpReConfigCb != NULL) { if (pSyncNode->pFsm->FpReConfigCb != NULL) {
SReConfigCbMeta cbMeta = {0}; SReConfigCbMeta cbMeta = {0};
cbMeta.code = 0; cbMeta.code = 0;
cbMeta.currentTerm = pSyncNode->pRaftStore->currentTerm; cbMeta.currentTerm = pSyncNode->pRaftStore->currentTerm;
cbMeta.index = pEntry->index; cbMeta.index = pEntry->index;
cbMeta.term = pEntry->term; cbMeta.term = pEntry->term;
cbMeta.oldCfg = oldSyncCfg;
cbMeta.flag = 0x1;
cbMeta.isDrop = isDrop;
pSyncNode->pFsm->FpReConfigCb(pSyncNode->pFsm, newSyncCfg, cbMeta); pSyncNode->pFsm->FpReConfigCb(pSyncNode->pFsm, newSyncCfg, cbMeta);
} }
} }

33
source/libs/sync/src/syncMain.c
View File

@ -951,21 +951,9 @@ char* syncNode2SimpleStr(const SSyncNode* pSyncNode) {
return s; return s;
} }
void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig) { void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig, bool* isDrop) {
bool hit = false;
for (int i = 0; i < newConfig->replicaNum; ++i) {
if (strcmp(pSyncNode->myNodeInfo.nodeFqdn, (newConfig->nodeInfo)[i].nodeFqdn) == 0 &&
pSyncNode->myNodeInfo.nodePort == (newConfig->nodeInfo)[i].nodePort) {
newConfig->myIndex = i;
hit = true;
break;
}
}
ASSERT(hit == true);
pSyncNode->pRaftCfg->cfg = *newConfig; pSyncNode->pRaftCfg->cfg = *newConfig;
int32_t ret = raftCfgPersist(pSyncNode->pRaftCfg); int32_t ret = 0;
ASSERT(ret == 0);
// init internal // init internal
pSyncNode->myNodeInfo = pSyncNode->pRaftCfg->cfg.nodeInfo[pSyncNode->pRaftCfg->cfg.myIndex]; pSyncNode->myNodeInfo = pSyncNode->pRaftCfg->cfg.nodeInfo[pSyncNode->pRaftCfg->cfg.myIndex];
@ -995,9 +983,22 @@ void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig) {
voteGrantedUpdate(pSyncNode->pVotesGranted, pSyncNode); voteGrantedUpdate(pSyncNode->pVotesGranted, pSyncNode);
votesRespondUpdate(pSyncNode->pVotesRespond, pSyncNode); votesRespondUpdate(pSyncNode->pVotesRespond, pSyncNode);
pSyncNode->pRaftCfg->isStandBy = 0; // isDrop
raftCfgPersist(pSyncNode->pRaftCfg); *isDrop = true;
for (int i = 0; i < newConfig->replicaNum; ++i) {
if (strcmp((newConfig->nodeInfo)[i].nodeFqdn, pSyncNode->myNodeInfo.nodeFqdn) == 0 &&
(newConfig->nodeInfo)[i].nodePort == pSyncNode->myNodeInfo.nodePort) {
*isDrop = false;
break;
}
}
if (!(*isDrop)) {
// change isStandBy to normal
pSyncNode->pRaftCfg->isStandBy = 0;
}
raftCfgPersist(pSyncNode->pRaftCfg);
syncNodeLog2("==syncNodeUpdateConfig==", pSyncNode); syncNodeLog2("==syncNodeUpdateConfig==", pSyncNode);
} }

14
source/libs/sync/test/syncConfigChangeTest.cpp
View File

@ -43,8 +43,9 @@ void CommitCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) {
if (cbMeta.index > beginIndex) { if (cbMeta.index > beginIndex) {
char logBuf[256]; char logBuf[256];
snprintf(logBuf, sizeof(logBuf), "==callback== ==CommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", snprintf(logBuf, sizeof(logBuf),
pFsm, cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag); "==callback== ==CommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", pFsm,
cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag);
syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg); syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg);
} else { } else {
sTrace("==callback== ==CommitCb== do not apply again %ld", cbMeta.index); sTrace("==callback== ==CommitCb== do not apply again %ld", cbMeta.index);
@ -54,15 +55,16 @@ void CommitCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) {
void PreCommitCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) { void PreCommitCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) {
char logBuf[256]; char logBuf[256];
snprintf(logBuf, sizeof(logBuf), snprintf(logBuf, sizeof(logBuf),
"==callback== ==PreCommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", pFsm, cbMeta.index, "==callback== ==PreCommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", pFsm,
cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag); cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag);
syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg); syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg);
} }
void RollBackCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) { void RollBackCb(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta) {
char logBuf[256]; char logBuf[256];
snprintf(logBuf, sizeof(logBuf), "==callback== ==RollBackCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", snprintf(logBuf, sizeof(logBuf),
pFsm, cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag); "==callback== ==RollBackCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s flag:%lu\n", pFsm,
cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state), cbMeta.flag);
syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg); syncRpcMsgLog2(logBuf, (SRpcMsg*)pMsg);
} }