디비에서 데이터를 가져올때 대상 데이터가 좀 많거나 해서 시간이 오래 걸리는 작업을 하다보면 이런 에러가 발생합니다. 물론 다시 똑 같은 검색을 하면 결과가 나오구요..왜 그럴까요?

리소스 문제인것 같기도 하고...

정확한 원인을 알아야 하는데... 꼭 좀 답변 부탁드립니다.

java.sql.SQLException: 명령문 종료: getMetaData
        at com.caucho.jsp.QPageContext.handlePageException(QPageContext.java:626)
        at _real._data_0table__jsp._jspService(_data_0table__jsp.java:199)
        at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
        at com.caucho.jsp.Page.subservice(Page.java:485)
        at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
        at com.caucho.server.http.Invocation.service(Invocation.java:312)
        at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
        at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:213)
        at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:100)
        at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:77)
        at ktf.servlet.PublicBaseServlet.callPage(PublicBaseServlet.java:89)
        at ktf.servlet.MaintainSasServlet.performTask(MaintainSasServlet.java:44)
        at ktf.servlet.PublicBaseServlet.performPreTask(PublicBaseServlet.java:46)
        at ktf.servlet.PublicBaseServlet.doPost(PublicBaseServlet.java:25)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:165)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:103)
        at com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96)
        at com.caucho.server.http.Invocation.service(Invocation.java:312)
        at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
        at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:342)
        at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:272)
        at com.caucho.server.TcpConnection.run(TcpConnection.java:137)
        at java.lang.Thread.run(Thread.java:484)
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