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Operating Systems Linux Problem in accessing Oracle Database Server from Linux Machine Post 302914140 by balaji kumar on Friday 22nd of August 2014 06:32:22 AM
Old 08-22-2014
Problem in accessing Oracle Database Server from Linux Machine

I am facing a strange issue in connecting to Oracle database from Linux Machine
- The connectivity is not failing all the time , the failure to success ratio is 1:70.
- Error "ORA-12545: Connect failed because target host or object does not exist"
- Majority of the time the connection is successful
- I am able to ping the target database server using the hostname defined in /etc/hosts
- There is another Oracle server which has a seamless connectivity.

Entry in tnsnames.ora
Code:
XXX.XXXXXX.COM =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = XXX.XXX.XX.XX)(PORT = XXXX))
    )
    (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = XXXX)
       (FAILOVER_MODE =
        (TYPE = SELECT)
        (METHOD = BASIC)
        (RETRIES = 180)
        (DELAY = 5)

    )))


Last edited by Franklin52; 08-22-2014 at 11:19 AM.. Reason: Please use code tags
 

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Session::Store::Oracle(3)				User Contributed Perl Documentation				 Session::Store::Oracle(3)

NAME
Apache::Session::Store::Oracle - Store persistent data in a Oracle database SYNOPSIS
use Apache::Session::Store::Oracle; my $store = new Apache::Session::Store::Oracle; $store->insert($ref); $store->update($ref); $store->materialize($ref); $store->remove($ref); DESCRIPTION
Apache::Session::Store::Oracle fulfills the storage interface of Apache::Session. Session data is stored in a Oracle database. SCHEMA
To use this module, you will need at least these columns in a table called 'sessions': id varchar2(32) # or however long your session IDs are. a_session long To create this schema, you can execute this command using the sqlplus program: CREATE TABLE sessions ( id varchar2(32) not null primary key, a_session long ); If you use some other command, ensure that there is a unique index on the table's id column. CONFIGURATION
The module must know what datasource, username, and password to use when connecting to the database. These values can be set using the options hash (see Apache::Session documentation). The options are DataSource, UserName, and Password. Example: tie %hash, 'Apache::Session::Oracle', $id, { DataSource => 'dbi:Oracle:database', UserName => 'database_user', Password => 'K00l' }; Instead, you may pass in an already-opened DBI handle to your database. tie %hash, 'Apache::Session::Oracle', $id, { Handle => $dbh }; The last option is LongReadLen, which specifies the maximum size of the session object. If not supplied, the default maximum size is 8 KB. AUTHOR
This modules was written by Jeffrey William Baker <jwbaker@acm.org> A fix for the commit policy was contributed by Michael Schout <mschout@gkg.net> SEE ALSO
Apache::Session, Apache::Session::Store::DBI perl v5.12.1 2007-09-28 Session::Store::Oracle(3)
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