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refactor(sync): add syncBeginSnapshot, syncEndSnapshot

This commit is contained in:
Minghao Li 2022-10-17 18:08:35 +08:00
parent 8a6eaed6f6
commit 45bce6ad49
1 changed files with 31 additions and 3 deletions
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34
source/libs/sync/src/syncMain.c
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@ -297,10 +297,30 @@ int32_t syncBeginSnapshot(int64_t rid, int64_t lastApplyIndex) {
ASSERT(rid == pSyncNode->rid);
int32_t code = 0;
for (int32_t i = 0; i < pSyncNode->peersNum; ++i) {
int64_t matchIndex = syncIndexMgrGetIndex(pSyncNode->pMatchIndex, &(pSyncNode->peersId[i]));
if (lastApplyIndex > matchIndex) {
do {
char host[64];
uint16_t port;
syncUtilU642Addr(pSyncNode->peersId[i].addr, host, sizeof(host), &port);
char logBuf[256];
snprintf(logBuf, sizeof(logBuf),
"new-snapshot-index:%ld is greater than match-index:%ld of %s:%d, do not delete wal", lastApplyIndex,
matchIndex, host, port);
syncNodeEventLog(pSyncNode, logBuf);
} while (0);
return 0;
}
}
if (pSyncNode->replicaNum == 1) {
SSyncLogStoreData* pData = pSyncNode->pLogStore->data;
code = walBeginSnapshot(pData->pWal, lastApplyIndex);
} else {
// calculate snapshot index
SyncIndex snapshottingIndex = atomic_load_64(&pSyncNode->snapshottingIndex);
if (snapshottingIndex == SYNC_INDEX_INVALID) {
@ -310,7 +330,10 @@ int32_t syncBeginSnapshot(int64_t rid, int64_t lastApplyIndex) {
code = walBeginSnapshot(pData->pWal, lastApplyIndex);
} else {
sError("vgId:%d snapshotting index:%ld, lastApplyIndex:%ld", snapshottingIndex, lastApplyIndex);
char logBuf[256];
snprintf(logBuf, sizeof(logBuf), "snapshotting for %ld, do not delete wal for new-snapshot-index:%ld",
snapshottingIndex, lastApplyIndex);
syncNodeEventLog(pSyncNode, logBuf);
}
}
@ -326,8 +349,13 @@ int32_t syncEndSnapshot(int64_t rid) {
}
ASSERT(rid == pSyncNode->rid);
SSyncLogStoreData* pData = pSyncNode->pLogStore->data;
int32_t code = walEndSnapshot(pData->pWal);
int32_t code = 0;
if (atomic_load_64(&pSyncNode->snapshottingIndex) != SYNC_INDEX_INVALID) {
SSyncLogStoreData* pData = pSyncNode->pLogStore->data;
code = walEndSnapshot(pData->pWal);
atomic_store_64(&pSyncNode->snapshottingIndex, SYNC_INDEX_INVALID);
}
taosReleaseRef(tsNodeRefId, pSyncNode->rid);
return code;