并发

db-utils/db_schema_sync.sh

@@ -41,6 +41,18 @@ work_dir=/home/qa-deploy-utils/db-utils
 sync_config_folder=~/db_sync_configs
 db_backup_folder=~/db_backups
 
+trap "exec 1000>&-;exec 1000<&-;exit 0" 2
+tempfifo=$$.fifo
+echo "mkfifo /tmp/$tempfifo"
+mkfifo /tmp/$tempfifo
+exec 1000<>/tmp/$tempfifo
+rm -rf /tmp/$tempfifo
+
+for ((i=1; i<=2; i++))
+do
+	echo >&1000
+done
+
 function valid_ip()
 {
     local  ip=$1
@@ -121,11 +133,16 @@ fi
 echo "database_list:${database_list}"
 for db_name in $database_list
 do
+	read -u1000
+	{
 		echo "----------------------------------------------------"
 		echo "--- start sync $db_name ---"
 		db_schema_sync $db_name
 		run_sql_file $db_name
 		echo "--- end sync $db_name ---"
+		echo >&1000
+	}&
 done
+wait
 echo "----------------------------------------------------"