add change repository compression options

src/inc/taoserror.h

@@ -173,6 +173,9 @@ TAOS_DEFINE_ERROR(TSDB_CODE_INVALID_VALUE,              0, 462, "invalid value")
 // others
 TAOS_DEFINE_ERROR(TSDB_CODE_INVALID_FILE_FORMAT,        0, 500, "invalid file format")
 
+// TSDB
+TAOS_DEFINE_ERROR(TSDB_CODE_INVALID_CONFIG,             0, 550, "invalid TSDB configuration")
+
 
 #ifdef TAOS_ERROR_C
 };

src/tsdb/inc/tsdbMain.h

@@ -160,6 +160,7 @@ typedef struct {
 
 typedef struct {
   int64_t index;
+  int     numOfCacheBlocks;
   SList * memPool;
 } STsdbCachePool;
 
@@ -488,6 +489,8 @@ int tsdbWriteCompIdx(SRWHelper *pHelper);
 
 // --------- Other functions need to further organize
 void tsdbFitRetention(STsdbRepo *pRepo);
+int  tsdbAlterCacheTotalBlocks(STsdbRepo *pRepo, int totalBlocks);
+void tsdbAdjustCacheBlocks(STsdbCache *pCache);
 
 #ifdef __cplusplus
 }

src/tsdb/src/tsdbCache.c

@@ -20,6 +20,7 @@
 static int  tsdbAllocBlockFromPool(STsdbCache *pCache);
 static void tsdbFreeBlockList(SList *list);
 static void tsdbFreeCacheMem(SCacheMem *mem);
+static int  tsdbAddCacheBlockToPool(STsdbCache *pCache);
 
 STsdbCache *tsdbInitCache(int cacheBlockSize, int totalBlocks, TsdbRepoT *pRepo) {
   STsdbCache *pCache = (STsdbCache *)calloc(1, sizeof(STsdbCache));
@@ -40,13 +41,7 @@ STsdbCache *tsdbInitCache(int cacheBlockSize, int totalBlocks, TsdbRepoT *pRepo)
   if (pPool->memPool == NULL) goto _err;
 
   for (int i = 0; i < totalBlocks; i++) {
-    STsdbCacheBlock *pBlock = (STsdbCacheBlock *)malloc(sizeof(STsdbCacheBlock) + cacheBlockSize);
-    if (pBlock == NULL) {
-      goto _err;
-    }
-    pBlock->offset = 0;
-    pBlock->remain = cacheBlockSize;
-    tdListAppend(pPool->memPool, (void *)(&pBlock));
+    if (tsdbAddCacheBlockToPool(pCache) < 0) goto _err;
   }
 
   pCache->mem = NULL;
@@ -143,3 +138,69 @@ static int tsdbAllocBlockFromPool(STsdbCache *pCache) {
 
   return 0;
 }
+
+int tsdbAlterCacheTotalBlocks(STsdbRepo *pRepo, int totalBlocks) {
+  STsdbCache *pCache = pRepo->tsdbCache;
+  int         oldNumOfBlocks = pCache->totalCacheBlocks;
+
+  tsdbLockRepo((TsdbRepoT *)pRepo);
+
+  ASSERT(pCache->totalCacheBlocks != totalBlocks);
+
+  if (pCache->totalCacheBlocks < totalBlocks) {
+    ASSERT(pCache->totalCacheBlocks == pCache->pool.numOfCacheBlocks);
+    int blocksToAdd = pCache->totalCacheBlocks - totalBlocks;
+    pCache->totalCacheBlocks = totalBlocks;
+    for (int i = 0; i < blocksToAdd; i++) {
+      if (tsdbAddCacheBlockToPool(pCache) < 0) {
+        tsdbUnLockRepo((TsdbRepoT *)pRepo);
+        tsdbError("tsdbId %d: failed to add cache block to cache pool", pRepo->config.tsdbId);
+        return -1;
+      }
+    }
+  } else {
+    pCache->totalCacheBlocks = totalBlocks;
+    tsdbAdjustCacheBlocks(pCache);
+  }
+
+  tsdbUnLockRepo((TsdbRepoT *)pRepo);
+  tsdbTrace("tsdbId %d: tsdb total cache blocks changed from %d to %d", pRepo->config.tsdbId, oldNumOfBlocks, totalBlocks);
+  return 0;
+}
+
+static int tsdbAddCacheBlockToPool(STsdbCache *pCache) {
+  STsdbCachePool *pPool = &pCache->pool;
+
+  STsdbCacheBlock *pBlock = malloc(sizeof(STsdbCacheBlock) + pCache->cacheBlockSize);
+  if (pBlock == NULL) return -1;
+
+  pBlock->offset = 0;
+  pBlock->remain = pCache->cacheBlockSize;
+  tdListAppend(pPool->memPool, (void *)(&pBlock));
+  pPool->numOfCacheBlocks++;
+
+  return 0;
+}
+
+static int tsdbRemoveCacheBlockFromPool(STsdbCache *pCache) {
+  STsdbCachePool *pPool = &pCache->pool;
+  STsdbCacheBlock *pBlock = NULL;
+
+  ASSERT(pCache->totalCacheBlocks >= 0);
+
+  SListNode *node = tdListPopHead(pPool->memPool);
+  if (node == NULL) return -1;
+
+  tdListNodeGetData(pPool->memPool, node, &pBlock);
+  free(pBlock);
+  listNodeFree(node);
+  pPool->numOfCacheBlocks--;
+
+  return 0;
+}
+
+void tsdbAdjustCacheBlocks(STsdbCache *pCache) {
+  while (pCache->totalCacheBlocks < pCache->pool.numOfCacheBlocks) {
+    if (tsdbRemoveCacheBlockFromPool(pCache) < 0) break;
+  }
+}

src/tsdb/src/tsdbFile.c

@@ -47,7 +47,7 @@ STsdbFileH *tsdbInitFileH(char *dataDir, STsdbCfg *pCfg) {
     return NULL;
   }
 
-  pFileH->maxFGroups = pCfg->keep / pCfg->daysPerFile + 2;
+  pFileH->maxFGroups = pCfg->keep / pCfg->daysPerFile + 3;
 
   pFileH->fGroup = (SFileGroup *)calloc(pFileH->maxFGroups, sizeof(SFileGroup));
   if (pFileH->fGroup == NULL) {

src/tsdb/src/tsdbMain.c

@@ -36,8 +36,9 @@ static int     tsdbCommitToFile(STsdbRepo *pRepo, int fid, SSkipListIterator **i
                                 SDataCols *pDataCols);
 static TSKEY   tsdbNextIterKey(SSkipListIterator *pIter);
 static int     tsdbHasDataToCommit(SSkipListIterator **iters, int nIters, TSKEY minKey, TSKEY maxKey);
-// static int tsdbWriteBlockToFileImpl(SFile *pFile, SDataCols *pCols, int pointsToWrite, int64_t *offset, int32_t *len,
-//                                     int64_t uid);
+static void    tsdbAlterCompression(STsdbRepo *pRepo, int8_t compression);
+static void    tsdbAlterKeep(STsdbRepo *pRepo, int32_t keep);
+static void tsdbAlterMaxTables(STsdbRepo *pRepo, int32_t maxTables);
 
 #define TSDB_GET_TABLE_BY_ID(pRepo, sid) (((STSDBRepo *)pRepo)->pTableList)[sid]
 #define TSDB_GET_TABLE_BY_NAME(pRepo, name)
@@ -298,10 +299,23 @@ int32_t tsdbCloseRepo(TsdbRepoT *repo) {
  */
 int32_t tsdbConfigRepo(TsdbRepoT *repo, STsdbCfg *pCfg) {
   STsdbRepo *pRepo = (STsdbRepo *)repo;
+  STsdbCfg * pRCfg = &pRepo->config;
 
-  pRepo->config = *pCfg;
-  // TODO
-  return 0;
+  if (tsdbCheckAndSetDefaultCfg(pCfg) < 0) return TSDB_CODE_INVALID_CONFIG;
+
+  ASSERT(pRCfg->tsdbId == pCfg->tsdbId);
+  ASSERT(pRCfg->cacheBlockSize == pCfg->cacheBlockSize);
+  ASSERT(pRCfg->daysPerFile == pCfg->daysPerFile);
+  ASSERT(pRCfg->minRowsPerFileBlock == pCfg->minRowsPerFileBlock);
+  ASSERT(pRCfg->maxRowsPerFileBlock == pCfg->maxRowsPerFileBlock);
+  ASSERT(pRCfg->precision == pCfg->precision);
+
+  if (pRCfg->compression != pCfg->compression) tsdbAlterCompression(pRepo, pCfg->compression);
+  if (pRCfg->keep != pCfg->keep) tsdbAlterKeep(pRepo, pCfg->keep);
+  if (pRCfg->totalBlocks != pCfg->totalBlocks) tsdbAlterCacheTotalBlocks(pRepo, pCfg->totalBlocks);
+  if (pRCfg->maxTables != pCfg->maxTables) tsdbAlterMaxTables(pRepo, pCfg->maxTables);
+
+  return TSDB_CODE_SUCCESS;
 }
 
 int32_t tsdbTriggerCommit(TsdbRepoT *repo) {
@@ -927,6 +941,7 @@ _exit:
 
   tsdbLockRepo(arg);
   tdListMove(pCache->imem->list, pCache->pool.memPool);
+  tsdbAdjustCacheBlocks(pCache);
   tdListFree(pCache->imem->list);
   free(pCache->imem);
   pCache->imem = NULL;
@@ -1046,3 +1061,26 @@ static int tsdbHasDataToCommit(SSkipListIterator **iters, int nIters, TSKEY minK
   }
   return 0;
 }
+
+static void tsdbAlterCompression(STsdbRepo *pRepo, int8_t compression) {
+  pRepo->config.compression = compression;
+}
+
+static void tsdbAlterKeep(STsdbRepo *pRepo, int32_t keep) {
+  STsdbCfg *pCfg = &pRepo->config;
+
+  int maxFiles = keep / pCfg->maxTables + 3;
+  if (pRepo->config.keep > keep) {
+    pRepo->tsdbFileH->maxFGroups = maxFiles;
+  } else {
+    pRepo->tsdbFileH->fGroup = realloc(pRepo->tsdbFileH->fGroup, sizeof(SFileGroup));
+    if (pRepo->tsdbFileH->fGroup == NULL) {
+      // TODO: deal with the error
+    }
+    pRepo->tsdbFileH->maxFGroups = maxFiles;
+  }
+}
+
+static void tsdbAlterMaxTables(STsdbRepo *pRepo, int32_t maxTables) {
+  // TODO
+}