From 9b3844ea91b7f744d0d8caac1fb320575e6f9e0e Mon Sep 17 00:00:00 2001
From: slguan <slguan@taosdata.com>
Date: Thu, 7 May 2020 14:29:06 +0800
Subject: [PATCH] a dead lock while tsdb commit

---
 src/tsdb/src/tsdbFile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index 0c1b9e314e..b1228b0230 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -180,7 +180,7 @@ void tsdbFitRetention(STsdbRepo *pRepo) {
   int mfid =
       tsdbGetKeyFileId(taosGetTimestamp(pRepo->config.precision), pRepo->config.daysPerFile, pRepo->config.precision);
 
-  while (pGroup[0].fileId < mfid) {
+  while (pFileH->numOfFGroups > 0 && pGroup[0].fileId < mfid) {
     tsdbRemoveFileGroup(pFileH, pGroup[0].fileId);
   }
 }
-- 
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