From 3420d77de3f5d595b003ec1486e31f8c94d43af7 Mon Sep 17 00:00:00 2001
From: heng <heng.chen@vesoft.com>
Date: Fri, 31 Jul 2020 13:54:03 +0800
Subject: [PATCH] Fix bug about catchup

---
 src/kvstore/raftex/RaftPart.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/kvstore/raftex/RaftPart.cpp b/src/kvstore/raftex/RaftPart.cpp
index f670c392dc1..5699625fbe4 100644
--- a/src/kvstore/raftex/RaftPart.cpp
+++ b/src/kvstore/raftex/RaftPart.cpp
@@ -1837,7 +1837,8 @@ AppendLogResult RaftPart::isCatchedUp(const HostAddr& peer) {
     }
     for (auto& host : hosts_) {
         if (host->addr_ == peer) {
-            if (host->followerCommittedLogId_ < wal_->firstLogId()) {
+            if (host->followerCommittedLogId_ == 0
+                    || host->followerCommittedLogId_ < wal_->firstLogId()) {
                 LOG(INFO) << idStr_ << "The committed log id of peer is "
                           << host->followerCommittedLogId_
                           << ", which is invalid or less than my first wal log id";