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对ssh系统 做压力测试,监控到c3p0链接出现近200 出现一下问题
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java.sql.SQLException: Listener refused the connection with the following error:

ORA-12520, TNS:listener could not find available handler for requested type of server

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:113)

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:263)

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:389)

at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:454)

at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)

at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)

at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:802)

at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)

at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)

at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)

at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)

at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)

at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)

at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)

at com.mchange.v2.async.ThreadPerTaskAsynchronousRunner$TaskThread.run(ThreadPerTaskAsync


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mayonghao
发帖于5年前 2回/1K+阅
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