Oracle Database - Enterprise Edition - Version 11.2.0.2 to 11.2.0.2 [Release 11.2]: 'XDB SGA reset to NULL' Messages Reported in the Alert Log During Upgrade of Data 'XDB SGA reset to NULL' Messages Reported in the Alert Log During Upgrade of Database to 11.2.0.2. Oracle Net Listener is a process that runs on the database server computer. It receives incoming client connection requests and manages the request traffic. Listener configuration information is stored in the listener.ora file and includes one or more listening protocol addresses, information about. Starting up 252 PDBs in Oracle Multitenant. Posted on November 29, 2013 by Mike.Dietrich. Let’s have a closer look into the alert.log during startup. After issueing the command. Well, XDB needs to be installed (at least that is what the message says). An Oracle database consists of the database datafiles, control files, redo log files, archive log files, and parameter file. This may be files on a local file system, NFS files or SAN Devices. In the latter case Oracle uses ASM (Automatic Storage Management) to address data. We have prepared below steps to install XDB on our Oracle Database 11gR2. Install XDB SQL> spool xdb_install.log. Install XDB on Oracle Database.
Continue to see the these warning messages in the alert log after applying 10.2.0.2 or higher, an SR may be in order to investigate if you are encountering a bug in the Shared Pool.
I have Oracle 11g XE installed on computer A. I can connect through the sql command line using the command connect username/password. I also can send SQL instructions to the Demo database: Select * from demo_customers;
The database is running on localhost of computer A.
I want computer B to connect to computer A's database on localhost. How can I do that?
joaquin6 Answers
You will need to run the lsnrctl utility on server A to start the listener. You would then connect from computer B using the following syntax:
The port information is optional if the default of 1521 is used.
DCookieDCookie
I install the Oracle server and it allows to connect from the local machine with no problem. But from another Maclaptop on my home network, it can't connect using either Sql Developer or Sql Plus. After doing some research, I figured out there is this additional step you have to do:
Use the Oracle net manager. Select the Listener. Add the IP address (in my case it is 192.168.1.12) besides of the 127.0.0.1 or localhost.
This will end up add an entry to the [OracleHome]product11.2.0dbhome_1networkadminlistener.ora
restart the listener service. (note: for me I reboot machine once to make it work)
Use lsnrctl status to verify
Notice the additional HOST=192.168.1.12 shows up and this is what to make remote connection to work.C:WindowsSystem32>lsnrctl status
LSNRCTL for 64-bit Windows: Version 11.2.0.1.0 - Production on 05-SEP-2015 13:51:43
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENERAlias LISTENER
Version TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Production
Start Date 05-SEP-2015 13:45:18
Uptime 0 days 0 hr. 6 min. 24 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File
D:oracle11gr2product11.2.0dbhome_1networkadminlistener.ora
Listener Log File d:oracle11gr2diagtnslsnreagleiilisteneralertlog.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=.pipeEXTPROC1521ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.12)(PORT=1521)))
Services Summary...
Service 'CLRExtProc' has 1 instance(s).
Instance 'CLRExtProc', status UNKNOWN, has 1 handler(s) for this service...
Service 'xe' has 1 instance(s).
Instance 'xe', status READY, has 1 handler(s) for this service... Service 'xeXDB' has 1 instance(s).
Instance 'xe', status READY, has 1 handler(s) for this service... The command completed successfullyuse tnsping to test the connection
ping the IPv4 address, not the localhost or the 127.0.0.1
C:WindowsSystem32>tnsping 192.168.1.12
TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 05-SEP-2015 14:09:11
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
D:oracle11gr2product11.2.0dbhome_1networkadminsqlnet.ora
Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.12)(PORT=1521)))
OK (0 msec)
Its quite easy on computer a you don't need to do anything just make sure both system are on same network if its not internet access(for this you need static ip). Okay now on computer b go to start menu find configuration under oracle folder click Net Configuration Assistant under that folder when window pop up click Local net configuration option it must be third option.
Now click add and click next in next screen it will ask service name here you need to add oracle global database name of computer A(Normally I use oracle86 for my installation) now click next next screen choose protocol normally its tcp click next in host name enter computer A's name you can found that in my computer properties. Click next don't change port untill you have changed that in Computer A click next and choose test connection now here you can check your connection working or not if the error is username and password not correct then click login credential button and fill correct username and password. If its saying unable to reach computer ot target not found than you must add exception in firewall for 1521 port or just disable firewall on computer A.
andrewsiFirst, make sure the listener on database server (computer A) that receives client connection requests is running. To do so, run lsnrctl status command.
In case, if you get TNS:no listener message (see below image), it means listener service is not running. To start it, run lsnrctl start command.
Second, for database operations and connectivity from remote clients, the following executables must be added to the Windows Firewall exception list: (see image)
Oracle_homebinoracle.exe - Oracle Database executable
Oracle_homebintnslsnr.exe - Oracle Listener
Finally, install oracle instant client on client machine (computer B) and run:
sqlplus user/password@computerA:port/XE
First.It is necessary add static IP address for Computer A AND B.For example in my case Computer A (172.20.14.13) and B (172.20.14.78).
Second. In Computer A with Net Manager add for Listener new address (172.20.14.13) or manually add new record in listener.ora
Third.With Net Manager create Service Naming with IP address computer B (172.20.14.78) or manually add new record in tnsnames.ora
Fourth.In computer B (172.20.14.78) install win64_11gR2_client (For example it is for me in Windows 10 Pro 64 bit )
Five. Create with Net Configuration Assistant listener (localhost) or manually add record in listener.ora
Six.With Net Manager create Service Naming with IP address computer A (172.20.14.13) or manually add new record in tnsnames.ora.
Seven(Computer A - (172.20.14.13)) for database operations and connectivity from remote clients, the following executables must be added to the Windows Firewall exception list: (see image)Oracle_homebinoracle.exe - Oracle Database executableOracle_homebintnslsnr.exe - Oracle Listener
Oracle Alert Log Xdb Installed Meanings
Eight Allow connections for port 1158 (Computer A - (172.20.14.13)) for Oracle Enterprise Manager (https://172.20.14.13:1158/em/console/logon/logon)
Ninth Allow connections for port 1521 ( in and out) (Computer A - (172.20.14.17))
Tenth In computer B 172.20.14.78sqlplus /NOLOG CONNECT system/oracle@//172.20.14.13:1521/alinadb
Xdb Installed
If uses Toad, in my case is