求助,BIEE11.9g服务突然停了,报Software caused connection abort: socket write error这个错误,是什么原因了

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有跟LDAP集成BIEE11.9g服务在假期突然停了,日志中报了这个错
java.sql.SQLRecoverableException: IO 错误: Software caused connection abort: socket write error
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:505)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:678)
    at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:234)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:567)
    at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(ConnectionEnvFactory.java:357)
    at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(ConnectionEnvFactory.java:239)
    at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1310)
    at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1227)
    at weblogic.common.resourcepool.ResourcePoolImpl.reserveResourceInternal(ResourcePoolImpl.java:451)
    at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:343)
    at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:330)
    at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:469)
    at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:363)
    at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:125)
    at weblogic.jdbc.common.internal.RmiDataSource.getPoolConnection(RmiDataSource.java:454)
    at weblogic.jdbc.common.internal.RmiDataSource.getConnectionInternal(RmiDataSource.java:538)
    at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:498)
    at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:491)
    at com.sigmadynamics.server.SDDataSource.getConnection(SDDataSource.java:85)
    at com.sigmadynamics.server.DataServices.DatabaseProvider.DatabaseProvider.getConnection(DatabaseProvider
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