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最近发表
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- ORA-12514: TNS: 监听进程不能解析在连接描述符中给出的SERVICE_NAME
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标签归档:Linux Error: 32: Broken pipe
TNS-12518: TNS:listener could not hand off client connection
客户反馈业务经常性出现数据库连接异常,通过工具访问ORACLE进程报ORA-12170
通过分析发现lsnrctl status几乎hang住,tnsping延迟特别大
进一步分析监听日志发现TNS-12518: TNS:listener could not hand off client connection错误
12-MAR-2024 15:34:50 * (CONNECT_DATA=(CID=(PROGRAM=JDBC Thin Client) (HOST=__jdbc__)(USER=Administrator))(SERVICE_NAME=ilas)) * (ADDRESS=(PROTOCOL=tcp) (HOST=ip)(PORT=52854)) * establish * ilas * 12518 TNS-12518: TNS:listener could not hand off client connection TNS-12547: TNS:lost contact TNS-12560: TNS:protocol adapter error TNS-00517: Lost contact Linux Error: 32: Broken pipe
根据经验和Troubleshooting Guide for TNS-12518 TNS listener could not hand off client connection描述,检查监听文件配置
[oracle@xff admin]$ cat listener.ora # listener.ora Network Configuration File:/home/u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/dbhome_1) (PROGRAM = extproc) (ENVS = "EXTPROC_DLLS=ONLY:/home/u01/app/oracle/product/11.2.0/dbhome_1/bin/oraclr11.dll") ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521)) ) ) ADR_BASE_LISTENER = /home/u01/app/oracle
根据经验和客户的业务进行分析,确认他们不会使用 external procedures方式访问数据库,直接修改监听配置
[oracle@xff admin]$ cat listener.ora # listener.ora Network Configuration File:/home/u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = xff) (ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/dbhome_1) (GLOBAL_DBNAME = xff) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521)) ) ) ADR_BASE_LISTENER = /home/u01/app/oracle
然后reload配置,再使用lsnrctl status查看结果秒出,tnsping也非常快
让客户测试应用也恢复正常,一切ok,问题在最小修改的情况下解决,和最初供应商建议的重装系统,双机,数据库等解决方案大大简化