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fix(stream): avoid lock in timer to avoid sync operation blocks.

This commit is contained in:
Haojun Liao 2025-02-28 17:46:54 +08:00
parent 1ced6d0d65
commit e1c4451f81
3 changed files with 17 additions and 4 deletions
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1
include/libs/stream/tstream.h
View File

@ -788,6 +788,7 @@ void streamMetaClearSetUpdateTaskListComplete(SStreamMeta* pMeta);
bool streamMetaInitUpdateTaskList(SStreamMeta* pMeta, int32_t transId);
void streamMetaRLock(SStreamMeta* pMeta);
int32_t streamMetaTryRlock(SStreamMeta* pMeta);
void streamMetaRUnLock(SStreamMeta* pMeta);
void streamMetaWLock(SStreamMeta* pMeta);
void streamMetaWUnLock(SStreamMeta* pMeta);

11
source/dnode/vnode/src/tq/tqStreamTask.c
View File

@ -146,9 +146,13 @@ static void doStartScanWal(void* param, void* tmrId) {
return;
}
streamMetaRLock(pMeta);
numOfTasks = taosArrayGetSize(pMeta->pTaskList);
streamMetaRUnLock(pMeta);
code = streamMetaTryRlock(pMeta);
if (code == 0) {
numOfTasks = taosArrayGetSize(pMeta->pTaskList);
streamMetaRUnLock(pMeta);
} else {
numOfTasks = 0;
}
if (numOfTasks == 0) {
goto _end;
@ -167,7 +171,6 @@ static void doStartScanWal(void* param, void* tmrId) {
}
_end:
streamTmrStart(doStartScanWal, SCAN_WAL_IDLE_DURATION, pParam, pTimer, &pMeta->scanInfo.scanTimer, vgId, "scan-wal");
tqDebug("vgId:%d scan-wal will start in %dms", vgId, SCAN_WAL_IDLE_DURATION*SCAN_WAL_WAIT_COUNT);

9
source/libs/stream/src/streamUtil.c
View File

@ -54,6 +54,15 @@ void streamMetaRUnLock(SStreamMeta* pMeta) {
}
}
int32_t streamMetaTryRlock(SStreamMeta* pMeta) {
int32_t code = taosThreadRwlockTryRdlock(&pMeta->lock);
if (code) {
stError("vgId:%d try meta-rlock failed, code:%s", pMeta->vgId, tstrerror(code));
}
return code;
}
void streamMetaWLock(SStreamMeta* pMeta) {
// stTrace("vgId:%d meta-wlock", pMeta->vgId);
int32_t code = taosThreadRwlockWrlock(&pMeta->lock);