more code

source/dnode/mnode/impl/src/mndDb.c

@@ -631,7 +631,7 @@ static int32_t mndSetDbCfgFromAlterDbReq(SDbObj *pDb, SAlterDbReq *pAlter) {
   terrno = TSDB_CODE_MND_DB_OPTION_UNCHANGED;
 
   if (pAlter->buffer > 0 && pAlter->buffer != pDb->cfg.buffer) {
-#if 1
+#if 0
     terrno = TSDB_CODE_OPS_NOT_SUPPORT;
     return terrno;
 #else
@@ -641,7 +641,7 @@ static int32_t mndSetDbCfgFromAlterDbReq(SDbObj *pDb, SAlterDbReq *pAlter) {
   }
 
   if (pAlter->pages > 0 && pAlter->pages != pDb->cfg.pages) {
-#if 1
+#if 0
     terrno = TSDB_CODE_OPS_NOT_SUPPORT;
     return terrno;
 #else
@@ -1311,7 +1311,7 @@ int32_t mndValidateDbInfo(SMnode *pMnode, SDbVgVersion *pDbs, int32_t numOfDbs,
       continue;
     } else {
       mInfo("db:%s, vgroup version changed from %d to %d", pDbVgVersion->dbFName, pDbVgVersion->vgVersion,
-             pDb->vgVersion);
+            pDb->vgVersion);
     }
 
     usedbRsp.pVgroupInfos = taosArrayInit(pDb->cfg.numOfVgroups, sizeof(SVgroupInfo));

source/dnode/vnode/src/inc/vnd.h

@@ -72,7 +72,7 @@ struct SVBufPool {
   SVBufPoolNode    node;
 };
 
-int32_t vnodeOpenBufPool(SVnode* pVnode, int64_t size);
+int32_t vnodeOpenBufPool(SVnode* pVnode);
 int32_t vnodeCloseBufPool(SVnode* pVnode);
 void    vnodeBufPoolReset(SVBufPool* pPool);
 

source/dnode/vnode/src/vnd/vnodeBufPool.c

@@ -16,20 +16,53 @@
 #include "vnd.h"
 
 /* ------------------------ STRUCTURES ------------------------ */
+#define VNODE_BUFPOOL_SEGMENTS 3
 
-static int vnodeBufPoolCreate(SVnode *pVnode, int64_t size, SVBufPool **ppPool);
-static int vnodeBufPoolDestroy(SVBufPool *pPool);
+static int vnodeBufPoolCreate(SVnode *pVnode, int64_t size, SVBufPool **ppPool) {
+  SVBufPool *pPool;
+
+  pPool = taosMemoryMalloc(sizeof(SVBufPool) + size);
+  if (pPool == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  if (taosThreadSpinInit(&pPool->lock, 0) != 0) {
+    taosMemoryFree(pPool);
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+
+  pPool->next = NULL;
+  pPool->pVnode = pVnode;
+  pPool->nRef = 0;
+  pPool->size = 0;
+  pPool->ptr = pPool->node.data;
+  pPool->pTail = &pPool->node;
+  pPool->node.prev = NULL;
+  pPool->node.pnext = &pPool->pTail;
+  pPool->node.size = size;
 
-int vnodeOpenBufPool(SVnode *pVnode, int64_t size) {
+  *ppPool = pPool;
+  return 0;
+}
+
+static int vnodeBufPoolDestroy(SVBufPool *pPool) {
+  vnodeBufPoolReset(pPool);
+  taosThreadSpinDestroy(&pPool->lock);
+  taosMemoryFree(pPool);
+  return 0;
+}
+
+int vnodeOpenBufPool(SVnode *pVnode) {
   SVBufPool *pPool = NULL;
-  int        ret;
+  int64_t    size = pVnode->config.szBuf / VNODE_BUFPOOL_SEGMENTS;
 
   ASSERT(pVnode->pPool == NULL);
 
   for (int i = 0; i < 3; i++) {
     // create pool
-    ret = vnodeBufPoolCreate(pVnode, size, &pPool);
-    if (ret < 0) {
+    if (vnodeBufPoolCreate(pVnode, size, &pPool)) {
       vError("vgId:%d, failed to open vnode buffer pool since %s", TD_VID(pVnode), tstrerror(terrno));
       vnodeCloseBufPool(pVnode);
       return -1;
@@ -41,7 +74,6 @@ int vnodeOpenBufPool(SVnode *pVnode, int64_t size) {
   }
 
   vDebug("vgId:%d, vnode buffer pool is opened, size:%" PRId64, TD_VID(pVnode), size);
-
   return 0;
 }
 
@@ -63,9 +95,7 @@ int vnodeCloseBufPool(SVnode *pVnode) {
 }
 
 void vnodeBufPoolReset(SVBufPool *pPool) {
-  SVBufPoolNode *pNode;
-
-  for (pNode = pPool->pTail; pNode->prev; pNode = pPool->pTail) {
+  for (SVBufPoolNode *pNode = pPool->pTail; pNode->prev; pNode = pPool->pTail) {
     ASSERT(pNode->pnext == &pPool->pTail);
     pNode->prev->pnext = &pPool->pTail;
     pPool->pTail = pNode->prev;
@@ -81,7 +111,7 @@ void vnodeBufPoolReset(SVBufPool *pPool) {
 
 void *vnodeBufPoolMalloc(SVBufPool *pPool, int size) {
   SVBufPoolNode *pNode;
-  void          *p;
+  void          *p = NULL;
   taosThreadSpinLock(&pPool->lock);
   if (pPool->node.size >= pPool->ptr - pPool->node.data + size) {
     // allocate from the anchor node
@@ -124,43 +154,6 @@ void vnodeBufPoolFree(SVBufPool *pPool, void *p) {
   }
 }
 
-// STATIC METHODS -------------------
-static int vnodeBufPoolCreate(SVnode *pVnode, int64_t size, SVBufPool **ppPool) {
-  SVBufPool *pPool;
-
-  pPool = taosMemoryMalloc(sizeof(SVBufPool) + size);
-  if (pPool == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return -1;
-  }
-
-  if (taosThreadSpinInit(&pPool->lock, 0) != 0) {
-    taosMemoryFree(pPool);
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return -1;
-  }
-
-  pPool->next = NULL;
-  pPool->pVnode = pVnode;
-  pPool->nRef = 0;
-  pPool->size = 0;
-  pPool->ptr = pPool->node.data;
-  pPool->pTail = &pPool->node;
-  pPool->node.prev = NULL;
-  pPool->node.pnext = &pPool->pTail;
-  pPool->node.size = size;
-
-  *ppPool = pPool;
-  return 0;
-}
-
-static int vnodeBufPoolDestroy(SVBufPool *pPool) {
-  vnodeBufPoolReset(pPool);
-  taosThreadSpinDestroy(&pPool->lock);
-  taosMemoryFree(pPool);
-  return 0;
-}
-
 void vnodeBufPoolRef(SVBufPool *pPool) {
   int32_t nRef = atomic_fetch_add_32(&pPool->nRef, 1);
   ASSERT(nRef > 0);
@@ -175,6 +168,19 @@ void vnodeBufPoolUnRef(SVBufPool *pPool) {
 
     taosThreadMutexLock(&pVnode->mutex);
 
+    int64_t size = pVnode->config.szBuf / VNODE_BUFPOOL_SEGMENTS;
+    if (pPool->node.size != size) {
+      SVBufPool *pPoolT = NULL;
+      if (vnodeBufPoolCreate(pVnode, size, &pPoolT) < 0) {
+        vWarn("vgId:%d try to change buf pools size from %" PRId64 " to %" PRId64 " since %s", TD_VID(pVnode),
+              pPool->node.size, size, tstrerror(errno));
+      } else {
+        vnodeBufPoolDestroy(pPool);
+        pPool = pPoolT;
+        vDebug("vgId:%d change buf pools size from %" PRId64 " to %" PRId64, TD_VID(pVnode), pPool->node.size, size);
+      }
+    }
+
     pPool->next = pVnode->pPool;
     pVnode->pPool = pPool;
     taosThreadCondSignal(&pVnode->poolNotEmpty);

source/dnode/vnode/src/vnd/vnodeOpen.c

@@ -96,7 +96,7 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
   taosThreadCondInit(&pVnode->poolNotEmpty, NULL);
 
   // open buffer pool
-  if (vnodeOpenBufPool(pVnode, pVnode->config.isHeap ? 0 : pVnode->config.szBuf / 3) < 0) {
+  if (vnodeOpenBufPool(pVnode) < 0) {
     vError("vgId:%d, failed to open vnode buffer pool since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }

source/dnode/vnode/src/vnd/vnodeSvr.c

@@ -1040,6 +1040,14 @@ static int32_t vnodeProcessAlterConfigReq(SVnode *pVnode, int64_t version, void
     tsdbCacheSetCapacity(pVnode, (size_t)pVnode->config.cacheLastSize * 1024 * 1024);
   }
 
+  if (pVnode->config.szBuf != alterReq.buffer * 1024LL * 1024LL) {
+    pVnode->config.szBuf = alterReq.buffer * 1024LL * 1024LL;
+  }
+
+  if (pVnode->config.szCache != alterReq.pages) {
+    // TODO
+  }
+
   if (pVnode->config.cacheLast != alterReq.cacheLast) {
     pVnode->config.cacheLast = alterReq.cacheLast;
   }