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fix(query): update the mutex.

This commit is contained in:
Haojun Liao 2022-12-22 15:44:40 +08:00
parent 9872217462
commit 55159a7ceb
1 changed files with 29 additions and 17 deletions
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46
source/dnode/vnode/src/meta/metaCache.c
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@ -54,6 +54,7 @@ struct SMetaCache {
// query cache
struct STagFilterResCache {
TdThreadMutex lock;
SHashObj* pTableEntry;
SLRUCache* pUidResCache;
uint64_t keyBuf[3];
@ -140,6 +141,8 @@ int32_t metaCacheOpen(SMeta* pMeta) {
}
taosHashSetFreeFp(pCache->sTagFilterResCache.pTableEntry, freeCacheEntryFp);
taosThreadMutexInit(&pCache->sTagFilterResCache.lock, NULL);
pMeta->pCache = pCache;
return code;
@ -159,6 +162,8 @@ void metaCacheClose(SMeta* pMeta) {
taosHashCleanup(pMeta->pCache->sTagFilterResCache.pTableEntry);
taosLRUCacheCleanup(pMeta->pCache->sTagFilterResCache.pUidResCache);
taosThreadMutexDestroy(&pMeta->pCache->sTagFilterResCache.lock);
taosMemoryFree(pMeta->pCache);
pMeta->pCache = NULL;
}
@ -423,9 +428,10 @@ int32_t metaStatsCacheGet(SMeta* pMeta, int64_t uid, SMetaStbStats* pInfo) {
int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pKey, int32_t keyLen, SArray* pList1,
bool* acquireRes) {
// generate the composed key for LRU cache
SLRUCache* pCache = pMeta->pCache->sTagFilterResCache.pUidResCache;
uint64_t* pBuf = pMeta->pCache->sTagFilterResCache.keyBuf;
SHashObj* pTableMap = pMeta->pCache->sTagFilterResCache.pTableEntry;
SLRUCache* pCache = pMeta->pCache->sTagFilterResCache.pUidResCache;
uint64_t* pBuf = pMeta->pCache->sTagFilterResCache.keyBuf;
SHashObj* pTableMap = pMeta->pCache->sTagFilterResCache.pTableEntry;
TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
uint32_t times = 0;
@ -433,12 +439,12 @@ int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pK
pBuf[0] = suid;
memcpy(&pBuf[1], pKey, keyLen);
metaRLock(pMeta);
taosThreadMutexLock(pLock);
int32_t len = keyLen + sizeof(uint64_t);
LRUHandle* pHandle = taosLRUCacheLookup(pCache, pBuf, len);
if (pHandle == NULL) {
metaULock(pMeta);
taosThreadMutexUnlock(pLock);
return TSDB_CODE_SUCCESS;
}
@ -457,11 +463,11 @@ int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pK
taosLRUCacheRelease(pCache, pHandle, false);
// unlock meta
metaULock(pMeta);
taosThreadMutexUnlock(pLock);
// check if scanning all items are necessary or not
if (times >= 5000 && TD_DLIST_NELES(&(*pEntry)->list) > 10) {
metaWLock(pMeta);
taosThreadMutexLock(pLock);
SArray* pInvalidRes = taosArrayInit(64, POINTER_BYTES);
@ -492,7 +498,7 @@ int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pK
atomic_store_32(&(*pEntry)->qTimes, 0); // reset the query times
taosArrayDestroy(pInvalidRes);
metaULock(pMeta);
taosThreadMutexUnlock(pLock);
}
return TSDB_CODE_SUCCESS;
@ -524,10 +530,11 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
return TSDB_CODE_SUCCESS;
}
SLRUCache* pCache = pMeta->pCache->sTagFilterResCache.pUidResCache;
SHashObj* pTableEntry = pMeta->pCache->sTagFilterResCache.pTableEntry;
SLRUCache* pCache = pMeta->pCache->sTagFilterResCache.pUidResCache;
SHashObj* pTableEntry = pMeta->pCache->sTagFilterResCache.pTableEntry;
TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
metaWLock(pMeta);
taosThreadMutexLock(pLock);
STagFilterResEntry** pEntry = taosHashGet(pTableEntry, &suid, sizeof(uint64_t));
if (pEntry == NULL) {
@ -550,7 +557,7 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
taosLRUCacheInsert(pCache, pBuf, sizeof(uint64_t) + keyLen, pPayload, payloadLen, freePayload, NULL,
TAOS_LRU_PRIORITY_LOW);
metaULock(pMeta);
taosThreadMutexUnlock(pLock);
metaDebug("vgId:%d, suid:%" PRIu64 " list cache added into cache, total:%d, tables:%d", TD_VID(pMeta->pVnode), suid,
(int32_t)taosLRUCacheGetUsage(pCache), taosHashGetSize(pTableEntry));
@ -560,15 +567,19 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
// remove the lru cache that are expired due to the tags value update, or creating, or dropping, of child tables
int32_t metaUidCacheClear(SMeta* pMeta, uint64_t suid) {
STagFilterResEntry** pEntry = taosHashGet(pMeta->pCache->sTagFilterResCache.pTableEntry, &suid, sizeof(uint64_t));
if (pEntry == NULL || listNEles(&(*pEntry)->list) == 0) {
return TSDB_CODE_SUCCESS;
}
int32_t keyLen = sizeof(uint64_t) * 3;
uint64_t p[3] = {0};
p[0] = suid;
TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
taosThreadMutexLock(pLock);
STagFilterResEntry** pEntry = taosHashGet(pMeta->pCache->sTagFilterResCache.pTableEntry, &suid, sizeof(uint64_t));
if (pEntry == NULL || listNEles(&(*pEntry)->list) == 0) {
taosThreadMutexUnlock(pLock);
return TSDB_CODE_SUCCESS;
}
SListIter iter = {0};
tdListInitIter(&(*pEntry)->list, &iter, TD_LIST_FORWARD);
@ -581,5 +592,6 @@ int32_t metaUidCacheClear(SMeta* pMeta, uint64_t suid) {
(*pEntry)->qTimes = 0;
tdListEmpty(&(*pEntry)->list);
taosThreadMutexUnlock(pLock);
return TSDB_CODE_SUCCESS;
}