Add to default white list

docs/en/operations/clickhouse-keeper.md

@@ -126,7 +126,7 @@ clickhouse keeper --config /etc/your_path_to_config/config.xml
 
 ClickHouse Keeper also provides 4lw commands which are almost the same with Zookeeper. Each command is composed of four letters such as `mntr`, `stat` etc. There are some more interesting commands: `stat` gives some general information about the server and connected clients, while `srvr` and `cons` give extended details on server and connections respectively.
 
-The 4lw commands has a white list configuration `four_letter_word_white_list` which has default value `conf,cons,crst,envi,ruok,srst,srvr,stat,wchc,wchs,dirs,mntr,isro`.
+The 4lw commands has a white list configuration `four_letter_word_white_list` which has default value `conf,cons,crst,envi,ruok,srst,srvr,stat,wchs,dirs,mntr,isro,rcvr,apiv,csnp,lgif`.
 
 You can issue the commands to ClickHouse Keeper via telnet or nc, at the client port.
 
@@ -309,7 +309,7 @@ Sessions with Ephemerals (1):
  /clickhouse/task_queue/ddl
 ```
 
-- `csnp`: Schedule a snapshot creation task. Return the last committed log index of the scheduled snapshot if success or `Fail to scheduled snapshot creation task.` if failed.
+- `csnp`: Schedule a snapshot creation task. Return the last committed log index of the scheduled snapshot if success or `Failed to schedule snapshot creation task.` if failed.
 
 ```
 100

src/Coordination/CoordinationSettings.cpp

@@ -36,7 +36,7 @@ void CoordinationSettings::loadFromConfig(const String & config_elem, const Poco
 }
 
 
-const String KeeperConfigurationAndSettings::DEFAULT_FOUR_LETTER_WORD_CMD = "conf,cons,crst,envi,ruok,srst,srvr,stat,wchs,dirs,mntr,isro,rcvr,apiv";
+const String KeeperConfigurationAndSettings::DEFAULT_FOUR_LETTER_WORD_CMD = "conf,cons,crst,envi,ruok,srst,srvr,stat,wchs,dirs,mntr,isro,rcvr,apiv,csnp,lgif";
 
 KeeperConfigurationAndSettings::KeeperConfigurationAndSettings()
     : server_id(NOT_EXIST)

src/Coordination/FourLetterCommand.cpp

@@ -481,7 +481,7 @@ String ApiVersionCommand::run()
 String CreateSnapshotCommand::run()
 {
     auto log_index = keeper_dispatcher.createSnapshot();
-    return log_index > 0 ? std::to_string(log_index) : "Fail to scheduled snapshot creation task.";
+    return log_index > 0 ? std::to_string(log_index) : "Failed to schedule snapshot creation task.";
 }
 
 String LogInfoCommand::run()

src/Coordination/KeeperServer.cpp

@@ -913,15 +913,16 @@ uint64_t KeeperServer::createSnapshot()
     if (log_idx != 0)
         LOG_INFO(log, "Snapshot creation scheduled with last committed log index {}.", log_idx);
     else
-        LOG_WARNING(log, "Fail to scheduled snapshot creation task.");
+        LOG_WARNING(log, "Failed to schedule snapshot creation task.");
     return log_idx;
 }
 
 KeeperLogInfo KeeperServer::getKeeperLogInfo()
 {
     KeeperLogInfo log_info;
-    log_info.first_log_idx = state_manager->load_log_store()->start_index();
-    log_info.first_log_term = state_manager->load_log_store()->term_at(log_info.first_log_idx);
+    auto log_store = state_manager->load_log_store();
+    log_info.first_log_idx = log_store->start_index();
+    log_info.first_log_term = log_store->term_at(log_info.first_log_idx);
     log_info.last_log_idx = raft_instance->get_last_log_idx();
     log_info.last_log_term = raft_instance->get_last_log_term();
     log_info.last_committed_log_idx = raft_instance->get_committed_log_idx();