# Q： DWS7.0la2作业调度手动执行出现串行等待问题，调度报错：Could not open JDBC Connection for transaction; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.
# A：在dolphin的master-server/conf配置文件application.yaml中增加如下配置，根据实际调大第一个和第二个参数。
hikari:
connection-timeout: 30000
maximum-pool-size: 10
idle-timeout: 600000
