[TD-3963]sync config change msg and wait for the config applied

src/tsdb/inc/tsdbMemTable.h

@@ -66,7 +66,7 @@ int   tsdbTakeMemSnapshot(STsdbRepo* pRepo, SMemSnapshot* pSnapshot, SArray* pAT
 void  tsdbUnTakeMemSnapShot(STsdbRepo* pRepo, SMemSnapshot* pSnapshot);
 void* tsdbAllocBytes(STsdbRepo* pRepo, int bytes);
 int   tsdbAsyncCommit(STsdbRepo* pRepo);
-int   tsdbAsyncCommitConfig(STsdbRepo* pRepo);
+int   tsdbSyncCommitConfig(STsdbRepo* pRepo);
 int   tsdbLoadDataFromCache(STable* pTable, SSkipListIterator* pIter, TSKEY maxKey, int maxRowsToRead, SDataCols* pCols,
                             TKEY* filterKeys, int nFilterKeys, bool keepDup, SMergeInfo* pMergeInfo);
 void* tsdbCommitData(STsdbRepo* pRepo);

src/tsdb/src/tsdbMain.c

@@ -270,8 +270,8 @@ int32_t tsdbConfigRepo(STsdbRepo *repo, STsdbCfg *pCfg) {
 
   pthread_mutex_unlock(&repo->save_mutex);
 
-  // schedule a commit msg then the new config will be applied immediatly
-  tsdbAsyncCommitConfig(repo);
+  // schedule a commit msg and wait for the new config applied
+  tsdbSyncCommitConfig(repo);
 
   return 0;
 #if 0

src/tsdb/src/tsdbMemTable.c

@@ -271,7 +271,7 @@ void *tsdbAllocBytes(STsdbRepo *pRepo, int bytes) {
   return ptr;
 }
 
-int tsdbAsyncCommitConfig(STsdbRepo* pRepo) {
+int tsdbSyncCommitConfig(STsdbRepo* pRepo) {
   ASSERT(pRepo->config_changed == true);
   tsem_wait(&(pRepo->readyToCommit));
 
@@ -283,6 +283,15 @@ int tsdbAsyncCommitConfig(STsdbRepo* pRepo) {
   tsdbScheduleCommit(pRepo, COMMIT_CONFIG_REQ);
   if (tsdbUnlockRepo(pRepo) < 0) return -1;
 
+  tsem_wait(&(pRepo->readyToCommit));
+  tsem_post(&(pRepo->readyToCommit));
+
+  if (pRepo->code != TSDB_CODE_SUCCESS) {
+    terrno = pRepo->code;
+    return -1;
+  }
+
+  terrno = TSDB_CODE_SUCCESS;
   return 0;
 }