From edd939991302e8db65dfc39ef3950b7656a6d19e Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Wed, 27 Jan 2021 10:18:14 +0800
Subject: [PATCH] fix tsdb file truncate bug

---
 src/tsdb/src/tsdbFile.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index 6a424b0b7c..ec001eef0e 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -202,7 +202,7 @@ int tsdbScanAndTryFixMFile(STsdbRepo *pRepo) {
     return -1;
   }
 
-  if (pMFile->info.size > mfstat.st_size) {
+  if (pMFile->info.size < mfstat.st_size) {
     if (tsdbOpenMFile(&mf, O_WRONLY) < 0) {
       return -1;
     }
@@ -221,7 +221,7 @@ int tsdbScanAndTryFixMFile(STsdbRepo *pRepo) {
     tsdbCloseMFile(&mf);
     tsdbInfo("vgId:%d file %s is truncated from %" PRId64 " to %" PRId64, REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pMFile),
              mfstat.st_size, pMFile->info.size);
-  } else if (pMFile->info.size < mfstat.st_size) {
+  } else if (pMFile->info.size > mfstat.st_size) {
     tsdbError("vgId:%d meta file %s has wrong size %" PRId64 " expected %" PRId64 ", report to upper layer to fix it",
               REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pMFile), mfstat.st_size, pMFile->info.size);
     pRepo->state |= TSDB_STATE_BAD_META;
@@ -428,7 +428,7 @@ static int tsdbScanAndTryFixDFile(STsdbRepo *pRepo, SDFile *pDFile) {
     return -1;
   }
 
-  if (pDFile->info.size > dfstat.st_size) {
+  if (pDFile->info.size < dfstat.st_size) {
     if (tsdbOpenDFile(&df, O_WRONLY) < 0) {
       return -1;
     }
@@ -447,7 +447,7 @@ static int tsdbScanAndTryFixDFile(STsdbRepo *pRepo, SDFile *pDFile) {
     tsdbCloseDFile(&df);
     tsdbInfo("vgId:%d file %s is truncated from %" PRId64 " to %" PRId64, REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile),
              dfstat.st_size, pDFile->info.size);
-  } else if (pDFile->info.size < dfstat.st_size) {
+  } else if (pDFile->info.size > dfstat.st_size) {
     tsdbError("vgId:%d data file %s has wrong size %" PRId64 " expected %" PRId64 ", report to upper layer to fix it",
               REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile), dfstat.st_size, pDFile->info.size);
     pRepo->state |= TSDB_STATE_BAD_DATA;
-- 
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