有几个早上我的 Oracle 数据库遇到了这个错误，并且一个小时左右没有启动。然后它在一天的剩余时间里都可以正常工作，不需要任何交互。但这会弄乱我的应用程序，因为它们依赖于 Oracle 在整个运行过程中处于开启状态。
有任何想法吗？
2009-09-11 04:52:56,343 [Orion Launcher] ERROR conn.ConnectionService verifyRepositoryEx.496 - Invalid Connection Pool. ERROR = ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
2009-09-11 04:52:56,734 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ias.ias.IASIntegration
2009-09-11 04:52:56,890 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.eml.target.slb.common.SLBIntegration
2009-09-11 04:52:56,953 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.eml.ssl.intg.SSLIntegration
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.tip.oem.central.domain.ProcessConnectDomainIntg
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.tip.oem.central.instance.ProcessConnectInstanceIntg
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.webdb.admin.em.PortalIntegration
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.webdb.admin.em.SSOIntegration
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.reports.em.RepIntg
2009-09-11 04:52:57,015 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsEmailIntegration
2009-09-11 04:52:57,031 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsOidIntegration
2009-09-11 04:52:57,031 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsOvfIntegration
2009-09-11 04:52:57,031 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsWebconfIntegration
2009-09-11 04:52:57,031 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsWirelessIntg
2009-09-11 04:52:57,031 [Orion Launcher] ERROR app.ContextInitializer contextInitialized.272 - Integration Class not found: oracle.sysman.ocs.mntr.target.OcsCalGrpIntegration
2009-09-11 04:52:57,078 [OmsServiceDriver thread] WARN jdbc.ConnectionCache _getConnection.303 - Got a fatal exeption when getting a connection; Error code = 1034; Cleaning up cache and retrying
2009-09-11 04:52:57,078 [OmsServiceDriver thread] WARN jdbc.ConnectionCache _getConnection.306 - ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
答案1
这通常发生在您尝试连接到未运行的数据库时。您通常可以将 Oracle 想象成一群工蜂聚集在蜂巢周围。“共享内存领域”就是蜂巢；如果它不在那里，您就会遇到大麻烦。
警报日志中包含哪些内容？
我首先要弄清楚服务器上操作系统级别正在运行哪些计划作业。有些任务要么关闭数据库然后重新启动（备份？），要么您可能有某种“看门狗”任务，在实例因某种原因崩溃后重新启动实例。