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IP cache problem after IP change

Created: 14 Apr 2011 | 3 comments
m_matukin@compfort.pl's picture
4 Agree
0 Disagree
+4 4 Votes
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Hi

When IP change for client server then command to clear cache work if master server can connect to client if not then NBU still take old IP address.

And this functionality generate many problems when IP change for client.

Work around with deleting file in var folder and restart NBU isnotacceptable for our customer.

 

We report 2 RFE for this functionality:

1.       We need possibility to turn off this IP cache functionality.

2.       We need command to flush permanent this cache ( not only in memory )  without NBU restart.

 

Michał

Comments

a_wierzbicki@compfort.pl's picture
15
Apr
2011
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IP cache problem after IP change

Please, solve this problem.

Adam

girishsj's picture
17
Apr
2011
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NB 7.1 provides some enhancements in this regard

1. Ability to clear host lookup cache in files as well as memory of running processes (ref: bpclntcmd)

2. Ability to turn off file-based (cross process) host lookup cache (ref: VNET_OPTIONS in bp.conf).

 

In-memory cache cannot be disabled, but you can reduce cache (validatity) interval. (ref: HOST_TTL? and VNET_OPTIONS in bp.conf)

For clients whose IP address changes frequently (like DHCP clients), there are additional configuration options. (ref: NB Admin Guide)

S Williamson's picture
17
May
2011
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