OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components
25.5.7 The localtimeout, globaltimeout, and queryattempts Attributes
When a system queries a server, it waits for a response for the period that is specified by
the localtimeout or globaltimeout attribute. The localtimeout attribute setting applies
when the system attempts to contact a local server; the globaltimeout attribute setting
applies when the system attempts to contact a global server.
The queryattempts attribute determines how many times DTS resets the timeout timer
before the system quits trying to contact a given server. Once the timeout setting has
elapsed the number of times that is determined by the queryattempts attribute, the
system quits querying the server. If the system is querying a global server, DTS then
generates a Server Not Responding event report and removes the server from the
system’s list of global servers. If a response from the global or local server is required in
order to meet the minservers attribute setting, DTS generates a Too Few Servers event
report, and the system does not synchronize.
The default setting for the queryattempts attribute is 3. The following example shows
how to set the queryattempts attribute value to 4:
dcecp> dts modify -change {queryattempts 4}
The default setting for the localtimeout attribute is 5 seconds, and the default setting for
the globaltimeout attribute is 15 seconds. The global setting is larger to account for the
communications delay on WAN links that are often used to access the global set. It is
unlikely that you will have to change the localtimeout attribute setting. The
globaltimeout attribute setting, however, may need to be changed due to the variations
in WAN topologies and transmission quality. In the following example, the
globaltimeout setting is changed to 20 seconds:
dcecp> dts modify -change {globaltimeout 00-00:00:20.000}
If you continually receive Server Not Responding event reports for a global server,
increase the globaltimeout setting. If you increase the setting and the event reports
continue, there may be a problem with the communications link to the server.
25.5.8 The serverentry and serverprincipal Attributes
During the initial configuration of DCE and DTS, one DTS entry name is created for use
with CDS, and one DTS name is created for use with the registry service. If you
subsequently wish to change the name of a server, you can do this by changing two of
the server’s attributes: the serverentry attribute and serverprincipal attribute. The
default settings for these dcecp attributes are the same as the default settings for the
names that are created during the initial DCE configuration; they are the recommended
settings. This section describes additional considerations for the settings of these
attributes. If you decide to change the settings of the serverentry and serverprincipal
attribute values, be sure that the new values are appropriate. If not, you will experience
trouble with DTS.
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