OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components
The value assigned to a directory’s CDS_Convergence attribute determines how
frequently the server that stores the master replica of the directory initiates a skulk of the
directory’s replica set. A directory’s convergence can be set to a value of high,
medium,or low .
A directory that is set to a convergence value of high is skulked at least once every 12
hours. If an update is made to the directory, the server that stores the master replica
immediately attempts to propagate the new information to the entire replica set. If this
update propagation fails, the server schedules a skulk of the directory to begin within the
hour. If this initial skulk fails, additional skulks are initiated at 1-hour intervals until the
skulk succeeds.
A directory that is set to a convergence value of medium is skulked at least once every
12 hours. If an update is made to the directory, the server that stores the master replica
immediately attempts to propagate the new information to the entire replica set. If the
propagation fails, the server waits for the next skulk to synchronize the replica set.
A directory that is set to a convergence value of low is skulked at least once every 24
hours. The server on which a low-convergence directory resides makes no immediate
attempt to propagate updates and waits for the next skulk to synchronize the replica set.
Every newly created directory inherits the convergence value of its parent directory.
When you create a namespace, the root directory is automatically assigned a
convergence value of medium. Unless you change this value, or the convergence
values of any lower-level directories after you create them, all directories that you create
under the root also have a convergence value of medium. For most directories, you
never need to modify this value. However, you may occasionally find it useful to set a
directory’s convergence to high or low.
18.5.1 Before You Modify a Directory’s Convergence
Before you modify a directory’s convergence, you want to verify the current
convergence value of the directory. To do this, use the directory show command to
display the directory’s attribute values and look at the CDS_Convergence attribute
value.
18.5.2 Permissions for Modifying a Directory’s Convergence
To modify a directory’s convergence, you must have write permission to the directory.
18.5.3 Entering the directory modify Command
Use the directory modify command with the -change option to assign a value of high,
medium,or low to a directory’s CDS_Convergence attribute. For example, the
18 − 10 Tandem Computers Incorporated 124243