ava.sql.SQLException: JNI ERROR (0x2354): Unable to establish connection

[hucaicai]

Caused by: java.sql.SQLException: JNI ERROR (0x2354): Unable to establish connection
at com.taosdata.jdbc.TSDBError.createSQLException(TSDBError.java:85)
at com.taosdata.jdbc.TSDBJNIConnector.connect(TSDBJNIConnector.java:82)
at com.taosdata.jdbc.TSDBConnection.connect(TSDBConnection.java:35)
at com.taosdata.jdbc.TSDBConnection.(TSDBConnection.java:21)
at com.taosdata.jdbc.TSDBDriver.connect(TSDBDriver.java:160)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560)
at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)
at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79)

请问是什么原因?
客户端版本：TDengine-client-3.0.4.1

[sangshuduo]

官网文档搜索 Unable to establish connection 可以搜到排查方法