我正在尝试将Azkaban(hadoop的作业调度程序)与本地mysql连接。 Azkaban的配置文件如下:
database.type=mysql
mysql.port=3306
mysql.host=localhost
mysql.database=azkaban
#Changed by Prakhar for azkaban , Azkaban
mysql.user=root
mysql.password= [ Password of mysql ]
MyMySql有一个名为“ azkaban”的数据库,我可以使用以下命令登录mysql:
./mysql -u root -p
我也验证了mysql正在3306端口上工作。 仍然我无法连接到mysql。 azkaban的日志如下所示:
2020/04/11 22:38:05.584 +0530 ERROR [MySQLDataSource] [Azkaban] Failed to find write-enabled DB connection. Wait 15 seconds and retry. No.Attempt = 1
java.sql.SQLException: Cannot create PoolableConnectionFactory (Could not create connection to database server.)
at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2294)
at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039)
at azkaban.db.MySQLDataSource.getConnection(MySQLDataSource.java:76)
at org.apache.commons.dbutils.AbstractQueryRunner.prepareConnection(AbstractQueryRunner.java:175)
at org.apache.commons.dbutils.QueryRunner.query(QueryRunner.java:286)
at azkaban.db.DatabaseOperator.query(DatabaseOperator.java:68)
at azkaban.executor.ExecutorDao.fetchActiveExecutors(ExecutorDao.java:53)
at azkaban.executor.JdbcExecutorLoader.fetchActiveExecutors(JdbcExecutorLoader.java:266)
at azkaban.executor.ExecutorManager.setupExecutors(ExecutorManager.java:223)
at azkaban.executor.ExecutorManager.<init>(ExecutorManager.java:131)
at azkaban.executor.ExecutorManager$$FastClassByGuice$$e1c1dfed.newInstance(<generated>)
at com.google.inject.internal.DefaultConstructionProxyFactory$FastClassProxy.newInstance(DefaultConstructionProxyFactory.java:89)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:111)
at
答案 0 :(得分:0)
很少有指针可以帮助您解决问题。