For best performance, use as few naming context objects as possible. For example, the combined use of naming context objects 5 and 6 fulfills the same requirement as the use of naming context object 7, but using naming context object 7 provides better performance.
Naming context object 5 is shown it Figure It also excludes the attribute userPassword. Naming context object 6 is shown in Figure You could fulfill the same requirement, however, by using naming context object 7.
Using a single naming context object provides better partial replication performance. Naming context object 7 is shown in Figure Use Oracle Directory Services Manager to test directory replication by doing the following:. The identical entry appears in approximately 1 to 10 minutes on the RMS. You can adjust the timing in the replication server configuration set entry. If entries are modified on any nodes in the DRG, then the changes are replicated.
You can use ldifwrite and bulkload to copy LDAP data from one host to another. Use the ldifwrite utility to back up LDAP data with operational attributes preserved. After this is done, use the bulkload utility to load data to all replicas in a group.
Performing Bulk Operations. To install the new node, follow the instructions in Installing and Configuring Oracle Internet Directory.
There are two ways to set up an LDAP-based replica with customized setting, based on how you will migrate the data from the directory:. Use the command-line tools. Use ldifwrite to backup the data from the supplier replica, then use bulkload to restore the data to the consumer replica. Use automatic bootstrapping. This is a replication server feature that automatically bootstrap the data from the supplier replica to the consumer replica, based upon replication configuration.
Table compares these two methods. The following eight tasks enable you to configure an LDAP-based replica by using automatic bootstrapping.
They are explained in the paragraphs that follow this list. Configuring the Consumer Replica for Automatic Bootstrapping. Changing Default Replication Parameters. Ensuring the Directory Replication Servers are Started. Make sure the Oracle Internet Directory server is started on the Supplier node.
To start the directory server, type the following command:. Before configuring the new node as an LDAP-based replica with customized settings, you must first migrate its metadata to the supplier node, as follows:.
Make sure the Oracle Internet Directory server is up and running on both the supplier node and the new node created, as discussed in Creating the New Consumer Node by Installing Oracle Internet Directory , so that the backup process remtool —backupmetadata can succeed. The remtool command-line tool reference in Reference for Oracle Identity Management for more information about remtool options, including -backupmetadata.
Apart from loading the metadata into master replica, this command creates a file named ocbkup. If you invoked remtool from a terminal, error messages appear on that terminal. The remtool utility prompts for agreement type. This is the value of the attribute orclreplicaid in the root DSE entry. To find the value to supply, type:. If you are planning to set up partial replication between server instances running different versions of Oracle Internet Directory , enter e.
After remtool has completed successfully, add a separate naming context for each subtree to be replicated, as follows:. To use the automatic bootstrap capability, on the consumer, set the orclReplicaState attribute of the consumer replica subentry to 0 as follows:. On Windows systems, ensure that the replication server is not running before you enable bootstrapping by changing the value of orclReplicaState to 0.
Managing and Monitoring Replication for more information about the bootstrap capability of the LDAP-based replication. Managing Replication Configuration Attributes. The exact procedure for starting the replication servers depends on whether this is a one-way or a two-way replica or multimaster replica. For one-way LDAP replication, you must start the replication server at the consumer.
For example, to start the replication server at oid1, type:. If you are deploying a single master with read-only replica consumers, you can reduce performance overhead by turning off conflict resolution. To do so, change the value of orclconflresolution to 0 by using the following ldif file with ldapmodify :. For two-way or multimaster LDAP replication, you must start the Oracle Internet Directory replication server at each node, as follows:.
When the replication server is started, it starts to bootstrap the data from the supplier to the consumer. You can monitor the value of orclreplicastate by using the following command line:. This section discuss the general tasks you perform when configuring an LDAP-based replica by using the ldifwrite tool. It contains these topics:. Loading the Data on the New Consumer.
Before configuring the consumer as an LDAP-based replica with customized settings, you must first migrate its metadata to the supplier node, as follows:. Apart from loading the metadata into master replica, this tool creates a file named ocbkup. If the metadata backup succeeded, remtool displays the following message in the terminal:.
To ensure data consistency, change the directory server on the supplier node to read-only. If there is a large number of entries in the naming contexts that you want to replicate to the LDAP-based replica, then Oracle recommends that you back up these naming contexts at the supplier node and then load them to the LDAP-based replica. The ldifwrite command-line tool reference in Reference for Oracle Identity Management for more instructions on using ldifwrite to back up part of the naming context.
The download contains documentation and scripts that guide you through the setup of replication of your spatial data using either multimaster synchronous replication or read-only snapshot replication.
Download WinZIP format, 44kb. Due to the complexity of Oracle Advanced replication, the documentation and scripts contained in this download should be reviewed and implemented by an experienced Oracle Database Administrator familiar with Oracle Advanced Replication. Some customization is required to convert the scripts to run at your site.
Please read the notes below before you begin downloading this file. As such they are not a supported part of the ArcSDE 8. The installation of Oracle 8. If you intend to create and replicate more than snapshots using read-only snapshot replication, then you must acquire patch from Oracle Corporation. If this patch is not installed, the Oracle database, serving as the read-only snapshot site, will core dump during the first snapshot refresh if more than snapshots are present in the snapshot group.
Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Applies to: SQL Server all supported versions. Transactional replication is a good solution to the problem of moving data between continuously connected servers. By using the Replication Wizard, you can easily configure and administer a replication topology. This tutorial shows you how to configure a transactional replication topology for continuously connected servers.
For more information about how transactional replication works, see the overview of transactional replication. This tutorial teaches you to publish data from one database to another by using transactional replication. This tutorial is for users who are familiar with basic database operations, but who have limited experience with replication. SQL Server Compact cannot be a subscriber in transactional replication.
Download the AdventureWorks sample database. In this section, you create a transactional publication by using SQL Server Management Studio to publish a filtered subset of the Product table in the AdventureWorks sample database. Expand the Replication folder, right-click the Local Publications folder, and select New Publication. This step starts the New Publication Wizard:. On the Publication Type page, select Transactional publication , and then select Next :.
On the Articles page, expand the Tables node and select the Product check box. Select Next. Select the Create a snapshot immediately and keep the snapshot available to initialize subscriptions check box, and select Next :. Please wait Successfully Setup Software.
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