sqoop连接MySQL睡眠_Sqoop jdbc连接Mysql Connection timed out (Connection timed out) 解决方法...

Sqoop 安装在Linux 环境，Mysql 安装在Windows系统，本地连接没有问题，但在Sqoop连接时报连接超时，如下：https://www.cndba.cn/dave/article/3301

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[[email protected] lib]$ sqoop list-databases --connect jdbc:mysql://192.168.56.2:3306/ --username root -P

Warning: /home/hadoop/sqoop/../hbase does not exist! HBase imports will fail.

Please set $HBASE_HOME to the root of your HBase installation.

Warning: /home/hadoop/sqoop/../hcatalog does not exist! HCatalog jobs will fail.

Please set $HCAT_HOME to the root of your HCatalog installation.

Warning: /home/hadoop/sqoop/../accumulo does not exist! Accumulo imports will fail.

Please set $ACCUMULO_HOME to the root of your Accumulo installation.

2019-03-02 23:15:14,946 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7

Enter password:

2019-03-02 23:15:19,741 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.

2019-03-02 23:17:27,246 ERROR manager.CatalogQueryManager: Failed to list databases

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)

at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)

at