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Creating and Maintaining Database Links
If the remote server does not respond before the
passed, then an error is returned and the connection is flagged as down. All
connections between the database link and remote server will be blocked for 30
seconds, protecting your server from a performance degradation. After 30 seconds,
operation requests made by the database link to the remote server continue as
normal.
Both attributes are stored in the
database,cn=plugins,cn=config
attributes in more detail:
Table 3-6
Attribute Name
nsMaxResponseDelay
nsMaxTestResponseDelay
Managing Threaded Operations
Generally, Directory Server performs best using a limited number of threads for
processing operations. A limited number of threads can generally process
operations very quickly, preventing the queue of operations waiting for a free
thread from growing too long.
However, the database link forwards operations to remote servers for processing.
The database link contacts the remote server, forwards the operation, waits for the
result, and then sends the result back to the client application. The entire operation
can take much longer than a local operation.
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Netscape Directory Server Administrator's Guide • January 2002
cn=config,cn=chaining
Database Link Processing Error Detection Parameters
Description
Maximum amount of time it can take a remote server to
respond to an LDAP operation request made by a database
link before an error is suspected.This period is given in
seconds. The default delay period is 60 seconds.
Once this delay period has been met, the database link tests
the connection with the remote server.
Duration of the test issued by the database link to check
whether the remote server is responding. If a response from
the remote server is not returned before this period has
passed, the database link assumes the remote server is down
and the connection is not used for subsequent operations.
This period is given in seconds. The default test response
delay period is 15 seconds.
nsMaxResponseDelay
entry. The following table describes the
period has
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