From 822f1051d2815b4a1ecc177d468427eaad855095 Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Mon, 25 Jan 2021 16:05:34 +0800
Subject: [PATCH] implement backward compatibility

---
 src/tsdb/src/tsdbFS.c   |  1 +
 src/tsdb/src/tsdbFile.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/tsdb/src/tsdbFS.c b/src/tsdb/src/tsdbFS.c
index 3b883d74b3..6cfa8b4db6 100644
--- a/src/tsdb/src/tsdbFS.c
+++ b/src/tsdb/src/tsdbFS.c
@@ -1132,6 +1132,7 @@ static int tsdbRestoreDFileSet(STsdbRepo *pRepo) {
       }
 
       tsdbCloseDFile(pDFile);
+      index++;
     }
 
     taosArrayPush(pfs->cstatus->df, &fset);
diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index c80bdd8c24..493c71bdfd 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -16,11 +16,11 @@
 #include "tsdbint.h"
 
 static const char *TSDB_FNAME_SUFFIX[] = {
-    ".head",  // TSDB_FILE_HEAD
-    ".data",  // TSDB_FILE_DATA
-    ".last",  // TSDB_FILE_LAST
-    "",       // TSDB_FILE_MAX
-    "meta"    // TSDB_FILE_META
+    "head",  // TSDB_FILE_HEAD
+    "data",  // TSDB_FILE_DATA
+    "last",  // TSDB_FILE_LAST
+    "",      // TSDB_FILE_MAX
+    "meta"   // TSDB_FILE_META
 };
 
 static void  tsdbGetFilename(int vid, int fid, uint32_t ver, TSDB_FILE_T ftype, char *fname);
@@ -590,9 +590,9 @@ static void tsdbGetFilename(int vid, int fid, uint32_t ver, TSDB_FILE_T ftype, c
 
   if (ftype < TSDB_FILE_MAX) {
     if (ver == 0) {
-      snprintf(fname, TSDB_FILENAME_LEN, "vnode/vnode%d/tsdb/data/v%df%d%s", vid, vid, fid, TSDB_FNAME_SUFFIX[ftype]);
+      snprintf(fname, TSDB_FILENAME_LEN, "vnode/vnode%d/tsdb/data/v%df%d.%s", vid, vid, fid, TSDB_FNAME_SUFFIX[ftype]);
     } else {
-      snprintf(fname, TSDB_FILENAME_LEN, "vnode/vnode%d/tsdb/data/v%df%d%s-ver%" PRIu32, vid, vid, fid,
+      snprintf(fname, TSDB_FILENAME_LEN, "vnode/vnode%d/tsdb/data/v%df%d.%s-ver%" PRIu32, vid, vid, fid,
                TSDB_FNAME_SUFFIX[ftype], ver);
     }
   } else {