分类目录归档：ORACLE 19C

非tns方式登录pdb方法

发表于 2023 年 10 月 9 日 由 惜分飞

非tns方式登录pdb方法之—-alter session set container

[oracle@db01 ~]$ env|grep ORA
ORACLE_SID=DCXFF
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/19c/db_1
[oracle@db01 ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Mon Oct 9 22:10:34 2023
Version 19.20.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.20.0.0.0

SQL> show pdbs;

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 XFFPDB1                        READ WRITE NO
SQL> show con_name;

CON_NAME
------------------------------
CDB$ROOT
SQL> alter session set container=XFFPDB1;

Session altered.

SQL> show con_name;

CON_NAME
------------------------------
XFFPDB1
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.20.0.0.0

非tns方式登录pdb方法之—-ORACLE_PDB_SID

[oracle@db01 ~]$ export ORACLE_PDB_SID=XFFPDB1
[oracle@db01 ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Mon Oct 9 22:11:30 2023
Version 19.20.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.20.0.0.0

SQL> SHOW pdbs;

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         3 XFFPDB1                        READ WRITE NO
SQL> show con_name;

CON_NAME
------------------------------
XFFPDB1
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.20.0.0.0

参考:How To Connect to PDB By OS Authentication In 19c Container Database Environment (Doc ID 2729416.1)

发表在 ORACLE 19C | 标签为 | 评论关闭

19c sqlplus / as sysdba 登录慢分析

发表于 2021 年 10 月 29 日 由 惜分飞

sqlplus / as sysdba登录非常慢

[oracle@xifenfei trace]$ date
Fri Oct 29 00:04:27 CST 2021
[oracle@xifenfei trace]$ sqlplus / as sysdba<< EOF
> exit;
> EOF

SQL*Plus: Release 19.0.0.0.0 - Production on Fri Oct 29 00:04:28 2021
Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.



Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0

SQL> Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0
[oracle@xifenfei trace]$ date
Fri Oct 29 00:04:49 CST 2021

sqlpus 一个简单的登录+退出使用了22秒,严重的慢,通过strace分析发现访问以下两个ip，但是10.11.0.41非常慢,10.13.0.41很快，并且通过一些信息53端口,判断可能是dns服务器的ip

connect(9, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.13.0.41")}, 16) = 0

connect(12, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.11.0.41")}, 16) = 0

进一步确认,确认是该服务器配置的dns服务器

[root@xifenfei ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.13.0.41
nameserver 10.11.0.41

对这两个ip的连通性进行测试

[root@xifenfei ~]# ping 10.13.0.41
PING 10.13.0.41 (10.13.0.41) 56(84) bytes of data.
64 bytes from 10.13.0.41: icmp_seq=1 ttl=126 time=0.616 ms
^C
--- 10.13.0.41 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.616/0.616/0.616/0.000 ms
[root@xifenfei ~]# ping  10.11.0.41
PING 10.11.0.41 (10.11.0.41) 56(84) bytes of data.
^C
--- 10.11.0.41 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2063ms

[root@xifenfei ~]#

确认10.11.0.41 ip不通,对于此类问题最快的解决方案就是除掉不可使用的dns服务器,然后测试登录和退出时间

[oracle@xifenfei trace]$ date
Fri Oct 29 00:21:12 CST 2021
[oracle@xifenfei trace]$ sqlplus / as sysdba<< EOF
> exit;
> EOF

SQL*Plus: Release 19.0.0.0.0 - Production on Fri Oct 29 00:21:12 2021
Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.

date

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0

SQL> Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0
[oracle@xifenfei trace]$ date
Fri Oct 29 00:21:13 CST 2021

通过除掉不可用的dns服务器ip之后,测试时间为1s,恢复正常

发表在 ORACLE 19C | 标签为 , | 评论关闭

19c 非第一个节点执行root.sh报Error 4 opening dom ASM/Self in 错误

发表于 2021 年 9 月 3 日 由 惜分飞

在linux 7.9的系统中安装oracle 19c的rac,在第二个节点执行root.sh报以下错误
Error 4 opening dom ASM/Self in 0x425a470
Domain name to open is ASM/Self
Error 4 opening dom ASM/Self in 0x425a470

[root@rac2 tmp]# /u01/app/19c/grid/root.sh
Performing root user operation.

The following environment variables are set as:
    ORACLE_OWNER= grid
    ORACLE_HOME=  /u01/app/19c/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]: 
   Copying dbhome to /usr/local/bin ...
   Copying oraenv to /usr/local/bin ...
   Copying coraenv to /usr/local/bin ...


Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
Relinking oracle with rac_on option
Using configuration parameter file: /u01/app/19c/grid/crs/install/crsconfig_params
The log of current session can be found at:
  /u01/app/grid/crsdata/rac2/crsconfig/rootcrs_rac2_2021-08-27_10-54-04AM.log
2021/08/27 10:54:07 CLSRSC-594: Executing installation step 1 of 19: 'SetupTFA'.
2021/08/27 10:54:07 CLSRSC-594: Executing installation step 2 of 19: 'ValidateEnv'.
2021/08/27 10:54:07 CLSRSC-594: Executing installation step 3 of 19: 'CheckFirstNode'.
2021/08/27 10:54:07 CLSRSC-594: Executing installation step 4 of 19: 'GenSiteGUIDs'.
2021/08/27 10:54:08 CLSRSC-594: Executing installation step 5 of 19: 'SetupOSD'.
Redirecting to /bin/systemctl restart rsyslog.service
2021/08/27 10:54:08 CLSRSC-594: Executing installation step 6 of 19: 'CheckCRSConfig'.
2021/08/27 10:54:08 CLSRSC-594: Executing installation step 7 of 19: 'SetupLocalGPNP'.
2021/08/27 10:54:09 CLSRSC-594: Executing installation step 8 of 19: 'CreateRootCert'.
2021/08/27 10:54:09 CLSRSC-594: Executing installation step 9 of 19: 'ConfigOLR'.
2021/08/27 10:54:18 CLSRSC-594: Executing installation step 10 of 19: 'ConfigCHMOS'.
2021/08/27 10:54:18 CLSRSC-594: Executing installation step 11 of 19: 'CreateOHASD'.
2021/08/27 10:54:19 CLSRSC-594: Executing installation step 12 of 19: 'ConfigOHASD'.
2021/08/27 10:54:21 CLSRSC-330: Adding Clusterware entries to file 'oracle-ohasd.service'
2021/08/27 10:55:06 CLSRSC-594: Executing installation step 13 of 19: 'InstallAFD'.
2021/08/27 10:55:18 CLSRSC-4002: Successfully installed Oracle Trace File Analyzer (TFA) Collector.
2021/08/27 10:55:35 CLSRSC-594: Executing installation step 14 of 19: 'InstallACFS'.
2021/08/27 10:56:07 CLSRSC-594: Executing installation step 15 of 19: 'InstallKA'.
2021/08/27 10:56:08 CLSRSC-594: Executing installation step 16 of 19: 'InitConfig'.
2021/08/27 10:56:15 CLSRSC-594: Executing installation step 17 of 19: 'StartCluster'.
2021/08/27 10:57:01 CLSRSC-343: Successfully started Oracle Clusterware stack
2021/08/27 10:57:01 CLSRSC-594: Executing installation step 18 of 19: 'ConfigNode'.
2021/08/27 10:57:10 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.
2021/08/27 10:57:15 CLSRSC-325: Configure Oracle Grid Infrastructure for a Cluster ... succeeded
Error 4 opening dom ASM/Self in 0x425a470
Domain name to open is ASM/Self 
Error 4 opening dom ASM/Self in 0x425a470
[root@rac2 tmp]#

通过查询mos,发现相关文档:19C: While Executing Root.sh on Remote Nodes HIT UNEXPECTED “ERROR 4 OPENING DOM ASM/SELF IN 0x57f7d60″ (Doc ID 2571719.1)
20210903084403

确认是oracle一个bug,在20c版本中修复(20c没有对外发布,应该在21c中修复),这个bug不影响,可以忽略

发表在 ORACLE 19C, Oracle安装升级 | 标签为 | 评论关闭