make it compilable

src/common/inc/tdisk.h

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TD_TDISK_H
+#define TD_TDISK_H
+
+#include "taosdef.h"
+#include "hash.h"
+#include "hash.h"
+#include "taoserror.h"
+#include "tglobal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+  int level;
+  int did;
+} SDiskID;
+
+typedef struct {
+  uint64_t size;
+  uint64_t free;
+  uint64_t nfiles;
+} SDiskMeta;
+
+typedef struct {
+  char      dir[TSDB_FILENAME_LEN];
+  SDiskMeta dmeta;
+} SDisk;
+
+typedef struct {
+  int    level;
+  int    nDisks;
+  SDisk *disks[TSDB_MAX_DISKS_PER_TIER];
+} STier;
+
+typedef struct SDnodeTier {
+  pthread_mutex_t lock;
+  int             nTiers;
+  STier           tiers[TSDB_MAX_TIERS];
+  SHashObj *      map;
+} SDnodeTier;
+
+extern struct SDnodeTier *tsDnodeTier;
+#define DNODE_PRIMARY_DISK(pDnodeTier) (pDnodeTier)->tiers[0].disks[0]
+
+static FORCE_INLINE int dnodeLockTiers(SDnodeTier *pDnodeTier) {
+  int code = pthread_mutex_lock(&(pDnodeTier->lock));
+  if (code != 0) {
+    terrno = TAOS_SYSTEM_ERROR(code);
+    return -1;
+  }
+  return 0;
+}
+
+static FORCE_INLINE int dnodeUnLockTiers(SDnodeTier *pDnodeTier) {
+  int code = pthread_mutex_unlock(&(pDnodeTier->lock));
+  if (code != 0) {
+    terrno = TAOS_SYSTEM_ERROR(code);
+    return -1;
+  }
+  return 0;
+}
+
+static FORCE_INLINE SDisk *dnodeGetDisk(SDnodeTier *pDnodeTier, int level, int did) {
+  if (level < 0 || level >= pDnodeTier->nTiers) return NULL;
+
+  if (did < 0 || did >= pDnodeTier->tiers[level].nDisks) return NULL;
+
+  return pDnodeTier->tiers[level].disks[did];
+}
+
+SDnodeTier *dnodeNewTier();
+void *      dnodeCloseTier(SDnodeTier *pDnodeTier);
+int         dnodeAddDisks(SDnodeTier *pDnodeTier, SDiskCfg *pDiskCfgs, int ndisks);
+int         dnodeUpdateTiersInfo(SDnodeTier *pDnodeTier);
+int         dnodeCheckTiers(SDnodeTier *pDnodeTier);
+SDisk *     dnodeAssignDisk(SDnodeTier *pDnodeTier, int level);
+SDisk *     dnodeGetDiskByName(SDnodeTier *pDnodeTier, char *dirName);
+void        dnodeIncDiskFiles(SDnodeTier *pDnodeTier, SDisk *pDisk, bool lock);
+void        dnodeDecDiskFiles(SDnodeTier *pDnodeTier, SDisk *pDisk, bool lock);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/common/src/tdisk.c

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "os.h"
+#include "tutil.h"
+#include "tdisk.h"
+#include "tulog.h"
+
+#define DISK_MIN_FREE_SPACE 30 * 1024 * 1024  // disk free space less than 100M will not create new file again
+#define DNODE_DISK_AVAIL(pDisk) ((pDisk)->dmeta.free > DISK_MIN_FREE_SPACE)
+
+static int dnodeFormatDir(char *idir, char *odir);
+static int dnodeCheckDisk(char *dirName, int level, int primary);
+static int dnodeUpdateDiskMeta(SDisk *pDisk);
+static int dnodeAddDisk(SDnodeTier *pDnodeTier, char *dir, int level, int primary);
+
+struct SDnodeTier *tsDnodeTier = NULL;
+
+SDnodeTier *dnodeNewTier() {
+  SDnodeTier *pDnodeTier = (SDnodeTier *)calloc(1, sizeof(*pDnodeTier));
+  if (pDnodeTier == NULL) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return NULL;
+  }
+
+  int ret = pthread_mutex_init(&(pDnodeTier->lock), NULL);
+  if (ret != 0) {
+    terrno = TAOS_SYSTEM_ERROR(ret);
+    dnodeCloseTier(pDnodeTier);
+    return NULL;
+  }
+
+  pDnodeTier->map = taosHashInit(TSDB_MAX_TIERS * TSDB_MAX_DISKS_PER_TIER * 2,
+                                 taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
+  if (pDnodeTier->map == NULL) {
+    terrno = TSDB_CODE_COM_OUT_OF_MEMORY;
+    dnodeCloseTier(pDnodeTier);
+    return NULL;
+  }
+
+  return pDnodeTier;
+}
+
+void *dnodeCloseTier(SDnodeTier *pDnodeTier) {
+  if (pDnodeTier) {
+    if (pDnodeTier->map) {
+      taosHashCleanup(pDnodeTier->map);
+      pDnodeTier->map = NULL;
+    }
+
+    pthread_mutex_destroy(&(pDnodeTier->lock));
+
+    for (int i = 0; i < pDnodeTier->nTiers; i++) {
+      STier *pTier = pDnodeTier->tiers + i;
+      for (int j = 0; j < pTier->nDisks; j++) {
+        if (pTier->disks[j]) {
+          free(pTier->disks[j]);
+          pTier->disks[j] = NULL;
+        }
+      }
+    }
+    free(pDnodeTier);
+  }
+  return NULL;
+}
+
+int dnodeAddDisks(SDnodeTier *pDnodeTier, SDiskCfg *pDiskCfgs, int ndisks) {
+  ASSERT(ndisks > 0);
+
+  for (int i = 0; i < ndisks; i++) {
+    SDiskCfg *pCfg = pDiskCfgs + i;
+    dnodeAddDisk(pDnodeTier, pCfg->dir, pCfg->level, pCfg->primary);
+  }
+
+  if (dnodeCheckTiers(pDnodeTier) < 0) return -1;
+  
+  return 0;
+}
+
+int dnodeUpdateTiersInfo(SDnodeTier *pDnodeTier) {
+  for (int i = 0; i < pDnodeTier->nTiers; i++) {
+    STier *pTier = pDnodeTier->tiers + i;
+
+    for (int j = 0; j < pTier->nDisks; j++) {
+      SDisk *pDisk = pTier->disks[j];
+      if (dnodeUpdateDiskMeta(pDisk) < 0) return -1;
+    }
+  }
+  return 0;
+}
+
+int dnodeCheckTiers(SDnodeTier *pDnodeTier) {
+  ASSERT(pDnodeTier->nTiers > 0);
+  if (DNODE_PRIMARY_DISK(pDnodeTier) == NULL) {
+    terrno = TSDB_CODE_DND_LACK_PRIMARY_DISK;
+    return -1;
+  }
+
+  for (int i = 0; i < pDnodeTier->nTiers; i++) {
+    if (pDnodeTier->tiers[i].nDisks == 0) {
+      terrno = TSDB_CODE_DND_NO_DISK_AT_TIER;
+      return -1;
+    }
+  }
+
+  return 0;
+}
+
+SDisk *dnodeAssignDisk(SDnodeTier *pDnodeTier, int level) {
+  ASSERT(level < pDnodeTier->nTiers);
+
+  STier *pTier = pDnodeTier->tiers + level;
+  SDisk *pDisk = NULL;
+
+  ASSERT(pTier->nDisks > 0);
+
+  dnodeLockTiers(pDnodeTier);
+
+  for (int i = 0; i < pTier->nDisks; i++) {
+    SDisk *iDisk = pTier->disks[i];
+    if (dnodeUpdateDiskMeta(iDisk) < 0) return NULL;
+    if (DNODE_DISK_AVAIL(iDisk)) {
+      if (pDisk == NULL || pDisk->dmeta.nfiles > iDisk->dmeta.nfiles) {
+        pDisk = iDisk;
+      }
+    }
+  }
+
+  if (pDisk == NULL) {
+    terrno = TSDB_CODE_DND_NO_DISK_SPACE;
+    dnodeUnLockTiers(pDnodeTier);
+    return NULL;
+  }
+
+  dnodeIncDiskFiles(pDnodeTier, pDisk, false);
+
+  dnodeUnLockTiers(pDnodeTier);
+
+  return NULL;
+}
+
+SDisk *dnodeGetDiskByName(SDnodeTier *pDnodeTier, char *dirName) {
+  char     fdirName[TSDB_FILENAME_LEN] = "\0";
+  SDiskID *pDiskID = NULL;
+
+  if (dnodeFormatDir(dirName, fdirName) < 0) {
+    return NULL;
+  }
+
+  void *ptr = taosHashGet(pDnodeTier->map, (void *)fdirName, strnlen(fdirName, TSDB_FILENAME_LEN));
+  if (ptr == NULL) return NULL;
+  pDiskID = (SDiskID *)ptr;
+
+  return dnodeGetDisk(pDnodeTier, pDiskID->level, pDiskID->did);
+}
+
+void dnodeIncDiskFiles(SDnodeTier *pDnodeTier, SDisk *pDisk, bool lock) {
+  if (lock) {
+    dnodeLockTiers(pDnodeTier);
+  }
+
+  pDisk->dmeta.nfiles++;
+
+  if (lock) {
+    dnodeUnLockTiers(pDnodeTier);
+  }
+}
+
+void dnodeDecDiskFiles(SDnodeTier *pDnodeTier, SDisk *pDisk, bool lock) {
+  if (lock) {
+    dnodeLockTiers(pDnodeTier);
+  }
+
+  pDisk->dmeta.nfiles--;
+
+  if (lock) {
+    dnodeUnLockTiers(pDnodeTier);
+  }
+}
+
+static int dnodeFormatDir(char *idir, char *odir) {
+  wordexp_t wep;
+
+  int code = wordexp(idir, &wep, 0);
+  if (code != 0) {
+    uError("failed to format dir %s since %s", idir, strerror(code));
+    terrno = TAOS_SYSTEM_ERROR(code);
+    return -1;
+  }
+
+  if (realpath(wep.we_wordv[0], odir) == NULL) {
+    uError("failed to format dir %s since %s", idir, strerror(errno));
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    wordfree(&wep);
+    return -1;
+  }
+
+  wordfree(&wep);
+  return 0;
+}
+
+static int dnodeCheckDisk(char *dirName, int level, int primary) {
+  if (access(dirName, W_OK | R_OK | F_OK) != 0) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+
+  struct stat pstat;
+  if (stat(dirName, &pstat) < 0) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+
+  if (S_ISDIR(pstat.st_mode)) {
+    return 0;
+  } else {
+    terrno = TSDB_CODE_DND_DISK_NOT_DIRECTORY;
+    return -1;
+  }
+}
+
+static int dnodeUpdateDiskMeta(SDisk *pDisk) {
+  struct statvfs dstat;
+  if (statvfs(pDisk->dir, &dstat) < 0) {
+    uError("failed to get dir %s information since %s", pDisk->dir, strerror(errno));
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+
+  pDisk->dmeta.size = dstat.f_bsize * dstat.f_blocks;
+  pDisk->dmeta.free = dstat.f_bsize * dstat.f_bavail;
+
+  return 0;
+}
+
+static int dnodeAddDisk(SDnodeTier *pDnodeTier, char *dir, int level, int primary) {
+  char    dirName[TSDB_FILENAME_LEN] = "\0";
+  STier * pTier = NULL;
+  SDiskID diskid = {0};
+  SDisk * pDisk = NULL;
+
+  if (level < 0 || level >= TSDB_MAX_TIERS) {
+    terrno = TSDB_CODE_DND_INVALID_DISK_TIER;
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  if (dnodeFormatDir(dir, dirName) < 0) {
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  pTier = pDnodeTier->tiers + level;
+  diskid.level = level;
+
+  if (pTier->nDisks >= TSDB_MAX_DISKS_PER_TIER) {
+    terrno = TSDB_CODE_DND_TOO_MANY_DISKS;
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  if (dnodeGetDiskByName(pDnodeTier, dirName) != NULL) {
+    terrno = TSDB_CODE_DND_DISK_ALREADY_EXISTS;
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  if (dnodeCheckDisk(dirName, level, primary) < 0) {
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  if (primary) {
+    if (level != 0) {
+      terrno = TSDB_CODE_DND_INVALID_DISK_TIER;
+      uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+      return -1;
+    }
+
+    if (DNODE_PRIMARY_DISK(pDnodeTier) != NULL) {
+      terrno = TSDB_CODE_DND_DUPLICATE_PRIMARY_DISK;
+      uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+      return -1;
+    }
+
+    diskid.did = 0;
+  } else {
+    if (level == 0) {
+      if (DNODE_PRIMARY_DISK(pDnodeTier) != NULL) {
+        diskid.did = pTier->nDisks;
+      } else {
+        diskid.did = pTier->nDisks + 1;
+        if (diskid.did >= TSDB_MAX_DISKS_PER_TIER) {
+          terrno = TSDB_CODE_DND_TOO_MANY_DISKS;
+          uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+          return -1;
+        }
+      }
+    } else {
+      diskid.did = pTier->nDisks;
+    }
+  }
+
+  pDisk = (SDisk *)calloc(1, sizeof(SDisk));
+  if (pDisk == NULL) {
+    terrno = TSDB_CODE_DND_OUT_OF_MEMORY;
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  strncpy(pDisk->dir, dirName, TSDB_FILENAME_LEN);
+
+  if (taosHashPut(pDnodeTier->map, (void *)dirName, strnlen(dirName, TSDB_FILENAME_LEN), (void *)(&diskid),
+                  sizeof(diskid)) < 0) {
+    free(pDisk);
+    terrno = TSDB_CODE_DND_OUT_OF_MEMORY;
+    uError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
+    return -1;
+  }
+
+  pTier->nDisks++;
+  pTier->disks[diskid.did] = pDisk;
+  pDnodeTier->nTiers = MAX(pDnodeTier->nTiers, level);
+
+  return 0;
+}
\ No newline at end of file

src/dnode/src/dnodeMain.c

@@ -33,6 +33,7 @@
 #include "dnodeShell.h"
 #include "dnodeTelemetry.h"
 #include "tpath.h"
+#include "tdisk.h"
 
 static int32_t dnodeInitStorage();
 static void dnodeCleanupStorage();

src/dnode/src/dnodeTier.c

-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "os.h"
-
-#include "dnode.h"
-#include "dnodeInt.h"
-#include "taosdef.h"
-
-#define DISK_MIN_FREE_SPACE 30 * 1024 * 1024  // disk free space less than 100M will not create new file again
-#define DNODE_DISK_AVAIL(pDisk) ((pDisk)->dmeta.free > DISK_MIN_FREE_SPACE)
-
-static int dnodeFormatDir(char *idir, char *odir);
-static int dnodeCheckDisk(char *dirName, int level, int primary);
-static int dnodeUpdateDiskMeta(SDisk *pDisk);
-static int dnodeAddDisk(SDnodeTier *pDnodeTier, char *dir, int level, int primary);
-
-SDnodeTier *dnodeNewTier() {
-  SDnodeTier *pDnodeTier = (SDnodeTier *)calloc(1, sizeof(*pDnodeTier));
-  if (pDnodeTier == NULL) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return NULL;
-  }
-
-  int ret = pthread_rwlock_init(&(pDnodeTier->rwlock), NULL);
-  if (ret != 0) {
-    terrno = TAOS_SYSTEM_ERROR(ret);
-    dnodeCloseTier(pDnodeTier);
-    return NULL;
-  }
-
-  pDnodeTier->map = taosHashInit(TSDB_MAX_TIERS * TSDB_MAX_DISKS_PER_TIER * 2,
-                                 taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
-  if (pDnodeTier->map == NULL) {
-    terrno = TSDB_CODE_COM_OUT_OF_MEMORY;
-    dnodeCloseTier(pDnodeTier);
-    return NULL;
-  }
-
-  return pDnodeTier;
-}
-
-void *dnodeCloseTier(SDnodeTier *pDnodeTier) {
-  if (pDnodeTier) {
-    if (pDnodeTier->map) {
-      taosHashCleanup(pDnodeTier->map);
-      pDnodeTier->map = NULL;
-    }
-
-    pthread_rwlock_destroy(&(pDnodeTier->rwlock));
-
-    for (int i = 0; i < pDnodeTier->nTiers; i++) {
-      STier *pTier = pDnodeTier->tiers + i;
-      for (int j = 0; j < pTier->nDisks; j++) {
-        if (pTier->disks[j]) {
-          free(pTier->disks[j]);
-          pTier->disks[j] = NULL;
-        }
-      }
-    }
-    free(pDnodeTier);
-  }
-  return NULL;
-}
-
-int dnodeAddDisks(SDnodeTier *pDnodeTier, SDiskCfg *pDiskCfgs, int ndisks) {
-  ASSERT(ndisks > 0);
-
-  for (int i = 0; i < ndisks; i++) {
-    SDiskCfg *pCfg = pDiskCfgs + i;
-    dnodeAddDisk(pDnodeTier, pCfg->dir, pCfg->level, pCfg->primary);
-  }
-
-  if (dnodeCheckTiers(pDnodeTier) < 0) return -1;
-  
-  return 0;
-}
-
-int dnodeUpdateTiersInfo(SDnodeTier *pDnodeTier) {
-  for (int i = 0; i < pDnodeTier->nTiers; i++) {
-    STier *pTier = pDnodeTier->tiers + i;
-
-    for (int j = 0; j < pTier->nDisks; j++) {
-      SDisk *pDisk = pTier->disks[j];
-      if (dnodeUpdateDiskMeta(pDisk) < 0) return -1;
-    }
-  }
-  return 0;
-}
-
-int dnodeCheckTiers(SDnodeTier *pDnodeTier) {
-  ASSERT(pDnodeTier->nTiers > 0);
-  if (DNODE_PRIMARY_DISK(pDnodeTier) == NULL) {
-    terrno = TSDB_CODE_DND_LACK_PRIMARY_DISK;
-    return -1;
-  }
-
-  for (int i = 0; i < pDnodeTier->nTiers; i++) {
-    if (pDnodeTier->tiers[i].nDisks == 0) {
-      terrno = TSDB_CODE_DND_NO_DISK_AT_TIER;
-      return -1;
-    }
-  }
-
-  return 0;
-}
-
-SDisk *dnodeAssignDisk(SDnodeTier *pDnodeTier, int level) {
-  ASSERT(level < pDnodeTier->nTiers);
-
-  STier *pTier = pDnodeTier->tiers + level;
-  SDisk *pDisk = NULL;
-
-  ASSERT(pTier->nDisks > 0);
-
-  for (int i = 0; i < pTier->nDisks; i++) {
-    SDisk *iDisk = pTier->disks[i];
-    if (dnodeUpdateDiskMeta(iDisk) < 0) return NULL;
-    if (DNODE_DISK_AVAIL(iDisk)) {
-      if (pDisk == NULL || pDisk->dmeta.nfiles > iDisk->dmeta.nfiles) {
-        pDisk = iDisk;
-      }
-    }
-  }
-
-  if (pDisk == NULL) {
-    terrno = TSDB_CODE_DND_NO_DISK_SPACE;
-  }
-
-  return NULL;
-}
-
-SDisk *dnodeGetDiskByName(SDnodeTier *pDnodeTier, char *dirName) {
-  char     fdirName[TSDB_FILENAME_LEN] = "\0";
-  SDiskID *pDiskID = NULL;
-
-  if (dnodeFormatDir(dirName, fdirName) < 0) {
-    return NULL;
-  }
-
-  void *ptr = taosHashGet(pDnodeTier->map, (void *)fdirName, strnlen(fdirName, TSDB_FILENAME_LEN));
-  if (ptr == NULL) return NULL;
-  pDiskID = (SDiskID *)ptr;
-
-  return dnodeGetDisk(pDnodeTier, pDiskID->level, pDiskID->did);
-}
-
-static int dnodeFormatDir(char *idir, char *odir) {
-  wordexp_t wep;
-
-  int code = wordexp(idir, &wep, 0);
-  if (code != 0) {
-    dError("failed to format dir %s since %s", idir, strerror(code));
-    terrno = TAOS_SYSTEM_ERROR(code);
-    return -1;
-  }
-
-  if (realpath(wep.we_wordv[0], odir) == NULL) {
-    dError("failed to format dir %s since %s", idir, strerror(errno));
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    wordfree(&wep);
-    return -1;
-  }
-
-  wordfree(&wep);
-  return 0;
-}
-
-static int dnodeCheckDisk(char *dirName, int level, int primary) {
-  if (access(dirName, W_OK | R_OK | F_OK) != 0) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return -1;
-  }
-
-  struct stat pstat;
-  if (stat(dirName, &pstat) < 0) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return -1;
-  }
-
-  if (S_ISDIR(pstat.st_mode)) {
-    return 0;
-  } else {
-    terrno = TSDB_CODE_DND_DISK_NOT_DIRECTORY;
-    return -1;
-  }
-}
-
-static int dnodeUpdateDiskMeta(SDisk *pDisk) {
-  struct statvfs dstat;
-  if (statvfs(pDisk->dir, &dstat) < 0) {
-    dError("failed to get dir %s information since %s", pDisk->dir, strerror(errno));
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return -1;
-  }
-
-  pDisk->dmeta.size = dstat.f_bsize * dstat.f_blocks;
-  pDisk->dmeta.free = dstat.f_bsize * dstat.f_bavail;
-
-  return 0;
-}
-
-static int dnodeAddDisk(SDnodeTier *pDnodeTier, char *dir, int level, int primary) {
-  char    dirName[TSDB_FILENAME_LEN] = "\0";
-  STier * pTier = NULL;
-  SDiskID diskid = {0};
-  SDisk * pDisk = NULL;
-
-  if (level < 0 || level >= TSDB_MAX_TIERS) {
-    terrno = TSDB_CODE_DND_INVALID_DISK_TIER;
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  if (dnodeFormatDir(dir, dirName) < 0) {
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  pTier = pDnodeTier->tiers + level;
-  diskid.level = level;
-
-  if (pTier->nDisks >= TSDB_MAX_DISKS_PER_TIER) {
-    terrno = TSDB_CODE_DND_TOO_MANY_DISKS;
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  if (dnodeGetDiskByName(pDnodeTier, dirName) != NULL) {
-    terrno = TSDB_CODE_DND_DISK_ALREADY_EXISTS;
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  if (dnodeCheckDisk(dirName, level, primary) < 0) {
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  if (primary) {
-    if (level != 0) {
-      terrno = TSDB_CODE_DND_INVALID_DISK_TIER;
-      dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-      return -1;
-    }
-
-    if (DNODE_PRIMARY_DISK(pDnodeTier) != NULL) {
-      terrno = TSDB_CODE_DND_DUPLICATE_PRIMARY_DISK;
-      dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-      return -1;
-    }
-
-    diskid.did = 0;
-  } else {
-    if (level == 0) {
-      if (DNODE_PRIMARY_DISK(pDnodeTier) != NULL) {
-        diskid.did = pTier->nDisks;
-      } else {
-        diskid.did = pTier->nDisks + 1;
-        if (diskid.did >= TSDB_MAX_DISKS_PER_TIER) {
-          terrno = TSDB_CODE_DND_TOO_MANY_DISKS;
-          dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-          return -1;
-        }
-      }
-    } else {
-      diskid.did = pTier->nDisks;
-    }
-  }
-
-  pDisk = (SDisk *)calloc(1, sizeof(SDisk));
-  if (pDisk == NULL) {
-    terrno = TSDB_CODE_DND_OUT_OF_MEMORY;
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  strncpy(pDisk->dir, dirName, TSDB_FILENAME_LEN);
-
-  if (taosHashPut(pDnodeTier->map, (void *)dirName, strnlen(dirName, TSDB_FILENAME_LEN), (void *)(&diskid),
-                  sizeof(diskid)) < 0) {
-    free(pDisk);
-    terrno = TSDB_CODE_DND_OUT_OF_MEMORY;
-    dError("failed to add disk %s to tier %d level since %s", dir, level, tstrerror(terrno));
-    return -1;
-  }
-
-  pTier->nDisks++;
-  pTier->disks[diskid.did] = pDisk;
-  pDnodeTier->nTiers = MAX(pDnodeTier->nTiers, level);
-
-  return 0;
-}
\ No newline at end of file

src/inc/dnode.h

@@ -73,81 +73,6 @@ void    dnodeDelayReprocessMnodeWriteMsg(void *pMsg);
 
 void    dnodeSendStatusMsgToMnode();
 
-typedef struct {
-  int level;
-  int did;
-} SDiskID;
-
-typedef struct {
-  uint64_t size;
-  uint64_t free;
-  uint64_t nfiles;
-} SDiskMeta;
-
-typedef struct {
-  char      dir[TSDB_FILENAME_LEN];
-  SDiskMeta dmeta;
-} SDisk;
-
-typedef struct {
-  int    level;
-  int    nDisks;
-  SDisk *disks[TSDB_MAX_DISKS_PER_TIER];
-} STier;
-
-typedef struct SDnodeTier {
-  pthread_rwlock_t rwlock;
-  int              nTiers;
-  STier            tiers[TSDB_MAX_TIERS];
-  SHashObj *       map;
-} SDnodeTier;
-
-extern struct SDnodeTier *tsDnodeTier;
-#define DNODE_PRIMARY_DISK(pDnodeTier) (pDnodeTier)->tiers[0].disks[0]
-
-static FORCE_INLINE int dnodeRLockTiers(SDnodeTier *pDnodeTier) {
-  int code = pthread_rwlock_rdlock(&(pDnodeTier->rwlock));
-  if (code != 0) {
-    terrno = TAOS_SYSTEM_ERROR(code);
-    return -1;
-  }
-  return 0;
-}
-
-static FORCE_INLINE int dnodeWLockTiers(SDnodeTier *pDnodeTier) {
-  int code = pthread_rwlock_wrlock(&(pDnodeTier->rwlock));
-  if (code != 0) {
-    terrno = TAOS_SYSTEM_ERROR(code);
-    return -1;
-  }
-  return 0;
-}
-
-static FORCE_INLINE int dnodeUnLockTiers(SDnodeTier *pDnodeTier) {
-  int code = pthread_rwlock_unlock(&(pDnodeTier->rwlock));
-  if (code != 0) {
-    terrno = TAOS_SYSTEM_ERROR(code);
-    return -1;
-  }
-  return 0;
-}
-
-static FORCE_INLINE SDisk *dnodeGetDisk(SDnodeTier *pDnodeTier, int level, int did) {
-  if (level < 0 || level >= pDnodeTier->nTiers) return NULL;
-
-  if (did < 0 || did >= pDnodeTier->tiers[level].nDisks) return NULL;
-
-  return pDnodeTier->tiers[level].disks[did];
-}
-
-SDnodeTier *dnodeNewTier();
-void *      dnodeCloseTier(SDnodeTier *pDnodeTier);
-int         dnodeAddDisks(SDnodeTier *pDnodeTier, SDiskCfg *pDiskCfgs, int ndisks);
-int         dnodeUpdateTiersInfo(SDnodeTier *pDnodeTier);
-int         dnodeCheckTiers(SDnodeTier *pDnodeTier);
-SDisk *     dnodeAssignDisk(SDnodeTier *pDnodeTier, int level);
-SDisk *     dnodeGetDiskByName(SDnodeTier *pDnodeTier, char *dirName);
-
 #ifdef __cplusplus
 }
 #endif

src/tsdb/inc/tsdbMain.h

@@ -26,6 +26,7 @@
 #include "tsdb.h"
 #include "tskiplist.h"
 #include "tutil.h"
+#include "tdisk.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -474,13 +475,13 @@ STsdbFileH* tsdbNewFileH(STsdbCfg* pCfg);
 void        tsdbFreeFileH(STsdbFileH* pFileH);
 int         tsdbOpenFileH(STsdbRepo* pRepo);
 void        tsdbCloseFileH(STsdbRepo* pRepo);
-SFileGroup* tsdbCreateFGroupIfNeed(STsdbRepo* pRepo, char* dataDir, int fid);
+SFileGroup* tsdbCreateFGroup(STsdbRepo* pRepo, int fid);
 void        tsdbInitFileGroupIter(STsdbFileH* pFileH, SFileGroupIter* pIter, int direction);
 void        tsdbSeekFileGroupIter(SFileGroupIter* pIter, int fid);
 SFileGroup* tsdbGetFileGroupNext(SFileGroupIter* pIter);
 int         tsdbOpenFile(SFile* pFile, int oflag);
 void        tsdbCloseFile(SFile* pFile);
-int         tsdbCreateFile(SFile* pFile, STsdbRepo* pRepo, int fid, int type);
+int         tsdbCreateFile(SFile* pFile, STsdbRepo* pRepo, int fid, int type, SDisk* pDisk);
 SFileGroup* tsdbSearchFGroup(STsdbFileH* pFileH, int fid, int flags);
 void        tsdbRemoveFilesBeyondRetention(STsdbRepo* pRepo, int mfid);
 int         tsdbUpdateFileHeader(SFile* pFile);

src/tsdb/src/tsdbFile.c

@@ -23,10 +23,9 @@
 #include "tchecksum.h"
 #include "tsdbMain.h"
 #include "tutil.h"
-#include "dnode.h"
 #include "tpath.h"
+#include "tdisk.h"
 
-struct SDnodeTier *tsDnodeTier = NULL;
 const char *       tsdbFileSuffix[] = {".head", ".data", ".last", ".stat", ".h", ".d", ".l", ".s"};
 
 static void      tsdbDestroyFile(SFile *pFile);
@@ -109,43 +108,35 @@ void tsdbCloseFileH(STsdbRepo *pRepo) {
   }
 }
 
-SFileGroup *tsdbCreateFGroupIfNeed(STsdbRepo *pRepo, char *dataDir, int fid) {
+SFileGroup *tsdbCreateFGroup(STsdbRepo *pRepo, int fid) {
   STsdbFileH *pFileH = pRepo->tsdbFileH;
-  STsdbCfg *  pCfg = &(pRepo->config);
-
-  if (pFileH->nFGroups >= pFileH->maxFGroups) {
-    int mfid = tsdbGetCurrMinFid(pCfg->precision, pCfg->keep, pCfg->daysPerFile);
-    if (pFileH->pFGroup[0].fileId < mfid) {
-      pthread_rwlock_wrlock(&pFileH->fhlock);
-      tsdbRemoveFileGroup(pRepo, &(pFileH->pFGroup[0]));
-      pthread_rwlock_unlock(&pFileH->fhlock);
-    }
-  }
-
-  ASSERT(pFileH->nFGroups < pFileH->maxFGroups);
+  SFileGroup  fGroup = {0};
 
-  SFileGroup  fGroup;
-  SFileGroup *pFGroup = &fGroup;
+  ASSERT(tsdbSearchFGroup(pFileH, fid, TD_EQ) == NULL);
 
-  SFileGroup *pGroup = tsdbSearchFGroup(pFileH, fid, TD_EQ);
-  if (pGroup == NULL) {  // if not exists, create one
-    pFGroup->fileId = fid;
-    for (int type = 0; type < TSDB_FILE_TYPE_MAX; type++) {
-      if (tsdbCreateFile(&pFGroup->files[type], pRepo, fid, type) < 0)
-        goto _err;
-    }
+  // TODO: think about if (level == 0) is correct
+  SDisk *pDisk = dnodeAssignDisk(tsDnodeTier, 0);
+  if (pDisk == NULL) {
+    tsdbError("vgId:%d failed to create file group %d since %s", REPO_ID(pRepo), fid, tstrerror(terrno));
+    return NULL;
+  }
 
-    pthread_rwlock_wrlock(&pFileH->fhlock);
-    pFileH->pFGroup[pFileH->nFGroups++] = fGroup;
-    qsort((void *)(pFileH->pFGroup), pFileH->nFGroups, sizeof(SFileGroup), compFGroup);
-    pthread_rwlock_unlock(&pFileH->fhlock);
-    return tsdbSearchFGroup(pFileH, fid, TD_EQ);
+  fGroup.fileId = fid;
+  for (int type = 0; type < TSDB_FILE_TYPE_MAX; type++) {
+    if (tsdbCreateFile(&(fGroup.files[type]), pRepo, fid, type, pDisk) < 0) goto _err;
   }
 
-  return pGroup;
+  pthread_rwlock_wrlock(&pFileH->fhlock);
+  pFileH->pFGroup[pFileH->nFGroups++] = fGroup;
+  qsort((void *)(pFileH->pFGroup), pFileH->nFGroups, sizeof(SFileGroup), compFGroup);
+  pthread_rwlock_unlock(&pFileH->fhlock);
+  return tsdbSearchFGroup(pFileH, fid, TD_EQ);
 
 _err:
-  for (int type = 0; type < TSDB_FILE_TYPE_MAX; type++) tsdbDestroyFile(&pGroup->files[type]);
+  for (int type = 0; type < TSDB_FILE_TYPE_MAX; type++) {
+    tsdbDestroyFile(&(fGroup.files[type]));
+  }
+  dnodeDecDiskFiles(tsDnodeTier, pDisk, true);
   return NULL;
 }
 
@@ -240,7 +231,7 @@ void tsdbCloseFile(SFile *pFile) {
   }
 }
 
-int tsdbCreateFile(SFile *pFile, STsdbRepo *pRepo, int fid, int type) {
+int tsdbCreateFile(SFile *pFile, STsdbRepo *pRepo, int fid, int type, SDisk *pDisk) {
   memset((void *)pFile, 0, sizeof(SFile));
   pFile->fd = -1;
 
@@ -348,7 +339,7 @@ void tsdbRemoveFileGroup(STsdbRepo *pRepo, SFileGroup *pFGroup) {
 
   SFileGroup fileGroup = *pFGroup;
   tsdbGetBaseDirFromFile(fileGroup.files[0].fname, baseDir);
-  pDisk = dnodeGetDiskByName(baseDir);
+  pDisk = dnodeGetDiskByName(tsDnodeTier, baseDir);
   ASSERT(pDisk != NULL);
 
   int nFilesLeft = pFileH->nFGroups - (int)(POINTER_DISTANCE(pFGroup, pFileH->pFGroup) / sizeof(SFileGroup) + 1);

src/tsdb/src/tsdbMemTable.c

@@ -472,7 +472,6 @@ static void *tsdbCommitData(void *arg) {
   STsdbMeta *  pMeta = pRepo->tsdbMeta;
   SCommitIter *iters = NULL;
   SRWHelper    whelper = {0};
-  STsdbFileH * pFileH = pRepo->tsdbFileH;
   TSKEY        minKey = 0, maxKey = 0;
   ASSERT(pRepo->commit == 1);
   ASSERT(pMem != NULL);
@@ -605,7 +604,6 @@ void tsdbGetFidKeyRange(int daysPerFile, int8_t precision, int fileId, TSKEY *mi
 }
 
 static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHelper *pHelper, SDataCols *pDataCols) {
-  char *      dataDir = NULL;
   STsdbCfg *  pCfg = &pRepo->config;
   STsdbFileH *pFileH = pRepo->tsdbFileH;
   SFileGroup *pGroup = NULL;
@@ -623,19 +621,11 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
   }
 
   if ((pGroup = tsdbSearchFGroup(pFileH, fid, TD_EQ)) == NULL) {
-    // file group not exists
-  } 
-
-  // Create and open files for commit
-  dataDir = tsdbGetDataDirName(pRepo->rootDir);
-  if (dataDir == NULL) {
-    terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
-    return -1;
-  }
-
-  if ((pGroup = tsdbCreateFGroupIfNeed(pRepo, dataDir, fid)) == NULL) {
-    tsdbError("vgId:%d failed to create file group %d since %s", REPO_ID(pRepo), fid, tstrerror(terrno));
-    goto _err;
+    pGroup = tsdbCreateFGroup(pRepo, fid);
+    if (pGroup == NULL) {
+      tsdbError("vgId:%d failed to create file group %d since %s", REPO_ID(pRepo), fid, tstrerror(terrno));
+      return -1;
+    }
   }
 
   // Open files for write/read
@@ -695,7 +685,6 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
     goto _err;
   }
 
-  taosTFree(dataDir);
   tsdbCloseHelperFile(pHelper, 0, pGroup);
 
   pthread_rwlock_wrlock(&(pFileH->fhlock));
@@ -717,7 +706,6 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
   return 0;
 
 _err:
-  taosTFree(dataDir);
   tsdbCloseHelperFile(pHelper, 1, NULL);
   return -1;
 }

src/tsdb/src/tsdbRWHelper.c

@@ -23,6 +23,7 @@
 #include "tcoding.h"
 #include "tscompression.h"
 #include "tsdbMain.h"
+#include "tpath.h"
 
 #define TSDB_GET_COMPCOL_LEN(nCols) (sizeof(SCompData) + sizeof(SCompCol) * (nCols) + sizeof(TSCKSUM))
 #define TSDB_KEY_COL_OFFSET 0
@@ -104,18 +105,22 @@ int tsdbSetAndOpenHelperFile(SRWHelper *pHelper, SFileGroup *pGroup) {
   ASSERT(pHelper != NULL && pGroup != NULL);
   SFile *    pFile = NULL;
   STsdbRepo *pRepo = pHelper->pRepo;
+  char       baseDir[TSDB_FILENAME_LEN] = "\0";
+  char       tsdbRootDir[TSDB_FILENAME_LEN] = "\0";
 
   // Clear the helper object
   tsdbResetHelper(pHelper);
 
   ASSERT(pHelper->state == TSDB_HELPER_CLEAR_STATE);
 
+  tsdbGetBaseDirFromFile(pGroup->files[0].fname, baseDir);
+  tdGetTsdbRootDir(baseDir, REPO_ID(pRepo), tsdbRootDir);
   // Set the files
   pHelper->files.fGroup = *pGroup;
   if (helperType(pHelper) == TSDB_WRITE_HELPER) {
-    tsdbGetDataFileName(pRepo->rootDir, REPO_ID(pRepo), pGroup->fileId, TSDB_FILE_TYPE_NHEAD,
+    tsdbGetDataFileName(tsdbRootDir, REPO_ID(pRepo), pGroup->fileId, TSDB_FILE_TYPE_NHEAD,
                         helperNewHeadF(pHelper)->fname);
-    tsdbGetDataFileName(pRepo->rootDir, REPO_ID(pRepo), pGroup->fileId, TSDB_FILE_TYPE_NLAST,
+    tsdbGetDataFileName(tsdbRootDir, REPO_ID(pRepo), pGroup->fileId, TSDB_FILE_TYPE_NLAST,
                         helperNewLastF(pHelper)->fname);
   }
 

src/vnode/CMakeLists.txt

@@ -11,5 +11,5 @@ AUX_SOURCE_DIRECTORY(src SRC)
 
 IF (TD_LINUX)
   ADD_LIBRARY(vnode ${SRC})
-  TARGET_LINK_LIBRARIES(vnode tsdb tcq)
+  TARGET_LINK_LIBRARIES(vnode tsdb tcq common)
 ENDIF ()

src/vnode/src/vnodeMain.c

@@ -30,8 +30,8 @@
 #include "vnode.h"
 #include "vnodeInt.h"
 #include "query.h"
-#include "dnode.h"
 #include "tpath.h"
+#include "tdisk.h"
 
 #define TSDB_VNODE_VERSION_CONTENT_LEN 31