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feat: avoid meta rwlock starvation

This commit is contained in:
Hongze Cheng 2024-01-25 15:45:09 +08:00
parent 9d9306a03b
commit 7d27c3902a
2 changed files with 13 additions and 1 deletions
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5
include/os/osThread.h
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@ -69,6 +69,11 @@ typedef pthread_key_t TdThreadKey;
#define taosThreadCleanupPush pthread_cleanup_push
#define taosThreadCleanupPop pthread_cleanup_pop
#if _XOPEN_SOURCE >= 500 || _POSIX_C_SOURCE >= 200809L
#define taosThreadRwlockAttrSetKindNP(A, B) pthread_rwlockattr_setkind_np(A, B)
#else
#define taosThreadRwlockAttrSetKindNP(A, B) ((void)0)
#endif
#if defined(WINDOWS) && !defined(__USE_PTHREAD)
#define TD_PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER_FORBID

9
source/dnode/vnode/src/meta/metaOpen.c
View File

@ -27,7 +27,14 @@ static int taskIdxKeyCmpr(const void *pKey1, int kLen1, const void *pKey2, int k
static int btimeIdxCmpr(const void *pKey1, int kLen1, const void *pKey2, int kLen2);
static int ncolIdxCmpr(const void *pKey1, int kLen1, const void *pKey2, int kLen2);
static int32_t metaInitLock(SMeta *pMeta) { return taosThreadRwlockInit(&pMeta->lock, NULL); }
static int32_t metaInitLock(SMeta *pMeta) {
TdThreadRwlockAttr attr;
taosThreadRwlockAttrInit(&attr);
taosThreadRwlockAttrSetKindNP(&attr, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
taosThreadRwlockInit(&pMeta->lock, NULL);
taosThreadRwlockAttrDestroy(&attr);
return 0;
}
static int32_t metaDestroyLock(SMeta *pMeta) { return taosThreadRwlockDestroy(&pMeta->lock); }
static void metaCleanup(SMeta **ppMeta);