beautypg.com

Flush name_cache – Compaq AA-Q88CE-TE User Manual

Page 164

background image

FLUSH NAME_CACHE

FLUSH NAME_CACHE

Flushes RTR’s internal network name cache.

Format

FLUSH NAME_CACHE

Command Qualifiers

Defaults

/CLUSTER

/NOCLUSTER

/NODE[=node-list]

/NODE=default-node-list

Description

The

FLUSH NAME_CACHE

removes information for all known nodes from RTR’s

internal network name cache.

Network links could become unstable if a Distributed Name Service (DNS) was
configured improperly or the service was slow in responding. During extreme
DNS latency, RTR could time-out the connections to nodes waiting for a DNS
response. To avoid these problems, RTR has implemented an internal node-name-
to-id cache; this reduces RTR’s exposure to degraded name servers. The contents
of the cache can be deleted the command

FLUSH NAME_CACHE

.

FLUSH NAME_CACHE

may be used if the network has been reconfigured or nodes

have changed their addresses.

Qualifiers

/CLUSTER
/NOCLUSTER (D)

Specifies that the command is executed on all the nodes in the cluster.

If neither

/NODE

nor

/CLUSTER

is specified then the command is executed on the

nodes specified by the latest

SET ENVIRONMENT

command. If no

SET ENVIRONMENT

command has been entered then the command is executed only on the node where
the command was issued.

Note: In environments that do not support clustering, use of the /CLUSTER
qualifier will cause the relevant command to be executed on the local node only.

/NODE[=node-list]
/NODE=default-node-list (D)

Specifies that the command is executed on all nodes specified in

node-list

. If

node-list

is omitted then the command is executed only on the node where the

command was issued.

6–88 RTR Command Line Interface