diff --git a/src/replica/mutation.h b/src/replica/mutation.h
index 190d425e397..d5b7f238adb 100644
--- a/src/replica/mutation.h
+++ b/src/replica/mutation.h
@@ -207,7 +207,6 @@ class replica;
 class mutation_queue
 {
 public:
-    explicit mutation_queue() {}
     mutation_queue(gpid gpid, int max_concurrent_op = 2, bool batch_write_disabled = false);
 
     ~mutation_queue()
diff --git a/src/replica/mutation_log.cpp b/src/replica/mutation_log.cpp
index 0b8b2efea97..c08ec6c5e2f 100644
--- a/src/replica/mutation_log.cpp
+++ b/src/replica/mutation_log.cpp
@@ -327,14 +327,14 @@ void mutation_log_private::commit_pending_mutations(log_file_ptr &lf,
 mutation_log::mutation_log(const std::string &dir, int32_t max_log_file_mb, gpid gpid, replica *r)
 {
     _dir = dir;
-    _is_private = true;
+    _is_private = (gpid.value() != 0);
     _max_log_file_size_in_bytes = static_cast<int64_t>(max_log_file_mb) * 1024L * 1024L;
     _min_log_file_size_in_bytes = _max_log_file_size_in_bytes / 10;
     _owner_replica = r;
     _private_gpid = gpid;
 
     if (r) {
-        //        CHECK_EQ(_private_gpid, r->get_gpid());
+        CHECK_EQ(_private_gpid, r->get_gpid());
     }
     mutation_log::init_states();
 }
diff --git a/src/replica/replica.cpp b/src/replica/replica.cpp
index 5a9c508e47e..62cd71ae94b 100644
--- a/src/replica/replica.cpp
+++ b/src/replica/replica.cpp
@@ -266,14 +266,6 @@ DSN_DECLARE_int32(checkpoint_max_interval_hours);
 
 const std::string replica::kAppInfo = ".app-info";
 
-replica::replica()
-    : serverlet<replica>("replica"),
-      replica_base(),
-      _primary_states(),
-      _potential_secondary_states(this)
-{
-}
-
 replica::replica(replica_stub *stub,
                  gpid gpid,
                  const app_info &app,
@@ -602,10 +594,6 @@ bool replica::verbose_commit_log() const { return _stub->_verbose_commit_log; }
 
 void replica::close()
 {
-    if (status() == partition_status::PS_INVALID) {
-        return;
-    }
-
     CHECK_PREFIX_MSG(status() == partition_status::PS_ERROR ||
                          status() == partition_status::PS_INACTIVE ||
                          _disk_migrator->status() == disk_migration_status::IDLE ||
diff --git a/src/replica/replica.h b/src/replica/replica.h
index a5f407600ce..72ba5a54419 100644
--- a/src/replica/replica.h
+++ b/src/replica/replica.h
@@ -311,7 +311,6 @@ class replica : public serverlet<replica>, public ref_counter, public replica_ba
             bool need_restore,
             bool is_duplication_follower = false);
 
-    explicit replica();
     error_code initialize_on_new();
     error_code initialize_on_load();
     error_code init_app_and_prepare_list(bool create_new);
diff --git a/src/replica/replica_base.h b/src/replica/replica_base.h
index 9677307307a..8909197a642 100644
--- a/src/replica/replica_base.h
+++ b/src/replica/replica_base.h
@@ -46,8 +46,6 @@ struct replica_base
     {
     }
 
-    explicit replica_base() {}
-
     gpid get_gpid() const { return _gpid; }
 
     const char *replica_name() const { return _name.c_str(); }
diff --git a/src/replica/replica_context.h b/src/replica/replica_context.h
index 88fce667e3c..32da41d38ba 100644
--- a/src/replica/replica_context.h
+++ b/src/replica/replica_context.h
@@ -89,7 +89,6 @@ typedef std::unordered_map<::dsn::rpc_address, remote_learner_state> learner_map
 class primary_context
 {
 public:
-    explicit primary_context() {}
     primary_context(gpid gpid, int max_concurrent_2pc_count = 1, bool batch_write_disabled = false)
         : next_learning_version(0),
           write_queue(gpid, max_concurrent_2pc_count, batch_write_disabled),
diff --git a/src/tools/mutation_log_tool.cpp b/src/tools/mutation_log_tool.cpp
index 85a6143aa3b..b68a4979b53 100644
--- a/src/tools/mutation_log_tool.cpp
+++ b/src/tools/mutation_log_tool.cpp
@@ -126,7 +126,6 @@ bool mutation_log_tool::dump(
         },
         nullptr);
     mlog->close();
-    delete rep;
     if (err != dsn::ERR_OK) {
         output << fmt::format("ERROR: dump mutation log failed, err = {}\n", err);
         return false;