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3.1.5. Monitoring Replication from Admin Express

Admin Express has an option to monitor replication status in real-time, meaning that it shows the number

of updates, times the most recent updates were sent, error and success messages, replication

schedule, the replicated directory suffix, and other information. Unlike other ways of checking replication

status, the Admin Express Replication Status page shows the real-time status of replication,

including updates in progress, current changes sequence numbers, and the lag between when a change

is made on the supplier and when that change is sent to the consumer.

Monitoring replication is set up using a simple configuration file which specifies which server to monitor

and what supplier and consumer replicas to include in the status page.

When trying to monitor replication status through Admin Express, remember two things:

The Replication Status page is only available for supplier servers. (It can be opened for other

types of replicas; there's just no information available and has the message The server is not a

master or it has no replication agreement.)

The configuration file must be in a directory that is accessible to Admin Server, and the file must be

readable by the Admin Server user. By default, the user is nobody.

The user is set in the console.conf file. To check the user, use grep to return the value:

grep \^User /etc/dirsrv/admin-serv/console.conf

The configuration file should be readable by the Admin Server user and no other users, so consider

resetting the permissions on the file:

chmod 0400 filename

To view in-progress status of replication in Admin Express:

1. Create a configuration file. T he configuration file lists all of the servers to monitor for replication,

giving their hostname, port, the bind credentials to use, and then optional settings for aliases and

time lag colors.

#Configuration File for Monitoring Replication Via Admin Express

[connection] Required. Gives the server host, port, supplier bind DN, and

password.

host1.example.com:389:cn=replication manager:mypassword

host2.example.com:3891:cn=replication manager:altpassword

[alias] Optional. Gives a friendly-name alias to the servers and consumers.

M1 = host1.exam ple.com :389

M2 = host2.example.com:3891

C1 = host3.exam ple.com :3892

C2 = host4.exam ple.com:3890

[color] Optional. Sets the color for the time lag boxes.

0 = #ccffcc

5 = #FFFFCC

60 = #FFCCCC

The configuration file must be in a directory that is accessible to the Admin Server, and the file

must be readable by the Admin Server user. By default, the user is nobody.

The user is set in the console.conf file. To check the user, use grep to return the value:

Red Hat Directory Server 8.1 Using the Admin Server

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Red Hat 8.1 Installationsanleitung Seite 39