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enh: reduce retryBackoff if first timeMs less than last one for half the current retryWaitMs

This commit is contained in:
Benguang Zhao 2022-11-28 13:47:07 +08:00
parent 4edef438ea
commit 5f4fb90f69
1 changed files with 8 additions and 0 deletions
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8
source/libs/sync/src/syncPipeline.c
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@ -843,6 +843,14 @@ int32_t syncLogReplMgrReplicateAttemptedOnce(SSyncLogReplMgr* pMgr, SSyncNode* p
int32_t syncLogReplMgrProcessReplyInNormalMode(SSyncLogReplMgr* pMgr, SSyncNode* pNode, SyncAppendEntriesReply* pMsg) {
ASSERT(pMgr->restored == true);
if (pMgr->startIndex <= pMsg->lastSendIndex && pMsg->lastSendIndex < pMgr->endIndex) {
if (pMgr->startIndex < pMgr->matchIndex && pMgr->retryBackoff > 0) {
int64_t firstSentMs = pMgr->states[pMgr->startIndex % pMgr->size].timeMs;
int64_t lastSentMs = pMgr->states[(pMgr->endIndex - 1) % pMgr->size].timeMs;
int64_t timeDiffMs = lastSentMs - firstSentMs;
if (timeDiffMs > 0 && timeDiffMs < (SYNC_LOG_REPL_RETRY_WAIT_MS << (pMgr->retryBackoff - 1))) {
pMgr->retryBackoff -= 1;
}
}
pMgr->states[pMsg->lastSendIndex % pMgr->size].acked = true;
pMgr->matchIndex = TMAX(pMgr->matchIndex, pMsg->matchIndex);
for (SyncIndex index = pMgr->startIndex; index < pMgr->matchIndex; index++) {