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refactor(sync): add snapshot2 interface

This commit is contained in:
Minghao Li 2022-07-01 09:50:20 +08:00
parent 24a3c817a4
commit 4f39cd31b0
8 changed files with 181 additions and 1 deletions
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2
include/libs/sync/sync.h
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@ -204,7 +204,7 @@ SyncGroupId syncGetVgId(int64_t rid);
void syncGetEpSet(int64_t rid, SEpSet* pEpSet);
void syncGetRetryEpSet(int64_t rid, SEpSet* pEpSet);
int32_t syncPropose(int64_t rid, SRpcMsg* pMsg, bool isWeak);
int32_t syncProposeBatch(int64_t rid, SRpcMsg* pMsgArr, bool* pIsWeakArr, int32_t arrSize);
// int32_t syncProposeBatch(int64_t rid, SRpcMsg* pMsgArr, bool* pIsWeakArr, int32_t arrSize);
bool syncEnvIsStart();
const char* syncStr(ESyncState state);
bool syncIsRestoreFinish(int64_t rid);

1
source/libs/sync/inc/syncAppendEntries.h
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@ -94,6 +94,7 @@ extern "C" {
//
int32_t syncNodeOnAppendEntriesCb(SSyncNode* ths, SyncAppendEntries* pMsg);
int32_t syncNodeOnAppendEntriesSnapshotCb(SSyncNode* ths, SyncAppendEntries* pMsg);
int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatch* pMsg);
#ifdef __cplusplus
}

1
source/libs/sync/inc/syncAppendEntriesReply.h
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@ -42,6 +42,7 @@ extern "C" {
//
int32_t syncNodeOnAppendEntriesReplyCb(SSyncNode* ths, SyncAppendEntriesReply* pMsg);
int32_t syncNodeOnAppendEntriesReplySnapshotCb(SSyncNode* ths, SyncAppendEntriesReply* pMsg);
int32_t syncNodeOnAppendEntriesReplySnapshot2Cb(SSyncNode* ths, SyncAppendEntriesReply* pMsg);
#ifdef __cplusplus
}

1
source/libs/sync/inc/syncInt.h
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@ -67,6 +67,7 @@ typedef struct SSyncNode {
char path[TSDB_FILENAME_LEN];
char raftStorePath[TSDB_FILENAME_LEN * 2];
char configPath[TSDB_FILENAME_LEN * 2];
int32_t batchSize;
// sync io
SWal* pWal;

7
source/libs/sync/inc/syncReplication.h
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@ -53,8 +53,15 @@ extern "C" {
//
int32_t syncNodeAppendEntriesPeers(SSyncNode* pSyncNode);
int32_t syncNodeAppendEntriesPeersSnapshot(SSyncNode* pSyncNode);
int32_t syncNodeAppendEntriesPeersSnapshot2(SSyncNode* pSyncNode);
int32_t syncNodeReplicate(SSyncNode* pSyncNode);
int32_t syncNodeAppendEntries(SSyncNode* pSyncNode, const SRaftId* destRaftId, const SyncAppendEntries* pMsg);
int32_t syncNodeAppendEntriesBatch(SSyncNode* pSyncNode, const SRaftId* destRaftId, const SyncAppendEntriesBatch* pMsg);
typedef struct SReaderParam {
SyncIndex start;
SyncIndex end;
} SReaderParam;
#ifdef __cplusplus
}

2
source/libs/sync/src/syncAppendEntries.c
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@ -719,6 +719,8 @@ static bool syncNodeOnAppendEntriesLogOK(SSyncNode* pSyncNode, SyncAppendEntries
return false;
}
int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatch* pMsg) { return 0; }
int32_t syncNodeOnAppendEntriesSnapshotCb(SSyncNode* ths, SyncAppendEntries* pMsg) {
int32_t ret = 0;
int32_t code = 0;

57
source/libs/sync/src/syncAppendEntriesReply.c
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@ -170,6 +170,63 @@ int32_t syncNodeOnAppendEntriesReplyCb(SSyncNode* ths, SyncAppendEntriesReply* p
}
#endif
int32_t syncNodeOnAppendEntriesReplySnapshot2Cb(SSyncNode* ths, SyncAppendEntriesReply* pMsg) {
int32_t ret = 0;
// if already drop replica, do not process
if (!syncNodeInRaftGroup(ths, &(pMsg->srcId)) && !ths->pRaftCfg->isStandBy) {
syncNodeEventLog(ths, "recv sync-append-entries-reply, maybe replica already dropped");
return -1;
}
// drop stale response
if (pMsg->term < ths->pRaftStore->currentTerm) {
char logBuf[128];
snprintf(logBuf, sizeof(logBuf), "recv sync-append-entries-reply, recv-term:%lu, drop stale response", pMsg->term);
syncNodeEventLog(ths, logBuf);
return -1;
}
if (pMsg->term > ths->pRaftStore->currentTerm) {
char logBuf[128];
snprintf(logBuf, sizeof(logBuf), "recv sync-append-entries-reply, error term, recv-term:%lu", pMsg->term);
syncNodeErrorLog(ths, logBuf);
return -1;
}
ASSERT(pMsg->term == ths->pRaftStore->currentTerm);
if (pMsg->success) {
// nextIndex' = [nextIndex EXCEPT ![i][j] = m.mmatchIndex + 1]
syncIndexMgrSetIndex(ths->pNextIndex, &(pMsg->srcId), pMsg->matchIndex + 1);
if (gRaftDetailLog) {
sTrace("update next match, index:%ld, success:%d", pMsg->matchIndex + 1, pMsg->success);
}
// matchIndex' = [matchIndex EXCEPT ![i][j] = m.mmatchIndex]
syncIndexMgrSetIndex(ths->pMatchIndex, &(pMsg->srcId), pMsg->matchIndex);
// maybe commit
if (ths->state == TAOS_SYNC_STATE_LEADER) {
syncMaybeAdvanceCommitIndex(ths);
}
} else {
SyncIndex nextIndex = syncIndexMgrGetIndex(ths->pNextIndex, &(pMsg->srcId));
// notice! int64, uint64
if (nextIndex > SYNC_INDEX_BEGIN) {
--nextIndex;
} else {
nextIndex = SYNC_INDEX_BEGIN;
}
syncIndexMgrSetIndex(ths->pNextIndex, &(pMsg->srcId), nextIndex);
}
return 0;
}
int32_t syncNodeOnAppendEntriesReplySnapshotCb(SSyncNode* ths, SyncAppendEntriesReply* pMsg) {
int32_t ret = 0;

111
source/libs/sync/src/syncReplication.c
View File

@ -116,6 +116,97 @@ int32_t syncNodeAppendEntriesPeers(SSyncNode* pSyncNode) {
return ret;
}
int32_t syncNodeAppendEntriesPeersSnapshot2(SSyncNode* pSyncNode) {
if (pSyncNode->state != TAOS_SYNC_STATE_LEADER) {
return -1;
}
int32_t ret = 0;
for (int i = 0; i < pSyncNode->peersNum; ++i) {
SRaftId* pDestId = &(pSyncNode->peersId[i]);
// next index
SyncIndex nextIndex = syncIndexMgrGetIndex(pSyncNode->pNextIndex, pDestId);
// if pre-entry not exist, create snapshot
SyncIndex preLogIndex = syncNodeGetPreIndex(pSyncNode, nextIndex);
SSyncRaftEntry* pPreEntry = NULL;
int32_t code = pSyncNode->pLogStore->syncLogGetEntry(pSyncNode->pLogStore, preLogIndex, &pPreEntry);
if (code == -1 && terrno == TSDB_CODE_WAL_LOG_NOT_EXIST) {
SSnapshot snapshot = {.data = NULL, .lastApplyIndex = -1, .lastApplyTerm = 0, .lastConfigIndex = -1};
if (pSyncNode->pFsm->FpGetSnapshot != NULL) {
void* pReader = NULL;
SReaderParam readerParam = {.start = 0, .end = nextIndex};
pSyncNode->pFsm->FpGetSnapshot(pSyncNode->pFsm, &snapshot, &readerParam, &pReader);
// get sender
SSyncSnapshotSender* pSender = syncNodeGetSnapshotSender(pSyncNode, pDestId);
ASSERT(pSender != NULL);
if (snapshot.lastApplyIndex >= SYNC_INDEX_BEGIN && nextIndex <= snapshot.lastApplyIndex + 1 &&
!snapshotSenderIsStart(pSender)) {
// start snapshot
snapshotSenderStart(pSender, snapshot, pReader);
} else {
// no snapshot
if (pReader != NULL) {
pSyncNode->pFsm->FpSnapshotStopRead(pSyncNode->pFsm, pReader);
}
}
}
}
// pre index, pre term
preLogIndex = syncNodeGetPreIndex(pSyncNode, nextIndex);
SyncTerm preLogTerm = syncNodeGetPreTerm(pSyncNode, nextIndex);
if (preLogTerm == SYNC_TERM_INVALID) {
SyncIndex newNextIndex = syncNodeGetLastIndex(pSyncNode) + 1;
syncIndexMgrSetIndex(pSyncNode->pNextIndex, pDestId, newNextIndex);
syncIndexMgrSetIndex(pSyncNode->pMatchIndex, pDestId, SYNC_INDEX_INVALID);
sError("vgId:%d sync get pre term error, nextIndex:%ld, update next-index:%ld, match-index:%d, raftid:%ld",
pSyncNode->vgId, nextIndex, newNextIndex, SYNC_INDEX_INVALID, pDestId->addr);
return -1;
}
SRpcMsg rpcMsgArr[SYNC_MAX_BATCH_SIZE];
memset(rpcMsgArr, 0, sizeof(rpcMsgArr));
int32_t getCount = 0;
for (int32_t i = 0; i < pSyncNode->batchSize; ++i) {
SSyncRaftEntry* pEntry;
int32_t code = pSyncNode->pLogStore->syncLogGetEntry(pSyncNode->pLogStore, nextIndex, &pEntry);
if (code == 0) {
ASSERT(pEntry != NULL);
// get rpc msg [i] from entry
syncEntryDestory(pEntry);
getCount++;
} else {
break;
}
}
SyncAppendEntriesBatch* pMsg = syncAppendEntriesBatchBuild(rpcMsgArr, getCount, pSyncNode->vgId);
ASSERT(pMsg != NULL);
// prepare msg
pMsg->srcId = pSyncNode->myRaftId;
pMsg->destId = *pDestId;
pMsg->term = pSyncNode->pRaftStore->currentTerm;
pMsg->prevLogIndex = preLogIndex;
pMsg->prevLogTerm = preLogTerm;
pMsg->commitIndex = pSyncNode->commitIndex;
pMsg->privateTerm = 0;
pMsg->dataCount = getCount;
// send msg
syncNodeAppendEntriesBatch(pSyncNode, pDestId, pMsg);
syncAppendEntriesBatchDestroy(pMsg);
}
return 0;
}
int32_t syncNodeAppendEntriesPeersSnapshot(SSyncNode* pSyncNode) {
ASSERT(pSyncNode->state == TAOS_SYNC_STATE_LEADER);
@ -235,3 +326,23 @@ int32_t syncNodeAppendEntries(SSyncNode* pSyncNode, const SRaftId* destRaftId, c
syncNodeSendMsgById(destRaftId, pSyncNode, &rpcMsg);
return ret;
}
int32_t syncNodeAppendEntriesBatch(SSyncNode* pSyncNode, const SRaftId* destRaftId,
const SyncAppendEntriesBatch* pMsg) {
do {
char host[128];
uint16_t port;
syncUtilU642Addr(destRaftId->addr, host, sizeof(host), &port);
sDebug(
"vgId:%d, send sync-append-entries-batch to %s:%d, {term:%lu, pre-index:%ld, pre-term:%lu, pterm:%lu, "
"commit:%ld, "
"datalen:%d, dataCount:%d}",
pSyncNode->vgId, host, port, pMsg->term, pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->privateTerm,
pMsg->commitIndex, pMsg->dataLen, pMsg->dataCount);
} while (0);
SRpcMsg rpcMsg;
syncAppendEntriesBatch2RpcMsg(pMsg, &rpcMsg);
syncNodeSendMsgById(destRaftId, pSyncNode, &rpcMsg);
return 0;
}