RE: {bb} Synchronization problem.

[Philip Clark <bblist@cannae.uklinux.net>]

On Mon, 2006-02-06 at 05:29, Balaji Santhanakrishnan wrote:
> 
> Hi,
> 
> 	Sorry for my late reply.
> 
> 	I have upgraded Big brother in US server to 1.9e as similar to
> India Server. Now the problem becomes more severe. Both US and India
> servers are not getting synchronized for DISC, Memory, SVCS and process
> information. But Conn, HTTP, DNS are getting synchronized. Before up
> gradation one way synchronization failed. Now 2 way synchronization
> failed.
> 
> Kindly let me know what changes I have to do for those information to
> getting relayed.

I'm starting to think that this change, to a more recent version
of BB, has exposed a problem with your configuration. Specifically,
I wonder if status used to be sent directly to multiple displays
rather than being relayed. For example, if the US server is defined
as a BBDISPLAY in the bb-hosts file on the server in India, the
status messages for network tests will be sent directly from
India to the US rather than being relayed. 

Part of the reason for this conclusion is that I cannot see how
two BBDISPLAYs can relay to each other without producing an endless
loop. In order to relay the information from each side, I think that
you will need a machine on either side that performs that relay
function but does not receive relayed information. That machine can
be another BBDISPLAY, but does not need to run a web-server or even
create any HTML pages.

For example, the bb-hosts files might be like this:

  ## bb-hosts file for config in India
  1.2.3.4   bbdisp.india-dom.com # BBDISPLAY BBNET BBPAGER ftp pop3
  1.2.3.5   bbrelay.india-dom.com # BBDISPLAY BBRELAY:4.3.2.1 smtp ssh
  1.2.3.6   client1.india-dom.com # ftp telnet
  < more India clients >
  4.3.2.1   bbdisp.usa-dom.com # noconn
  4.3.2.2   bbrelay.usa-dom.com # noconn
  4.3.2.3   client1.usa-dom.com # noconn
  < more USA clients >

  ## bb-hosts file for config in USA
  4.3.2.1   bbdisp.usa-dom.com # BBDISPLAY BBNET BBPAGER ftp pop3
  4.3.2.2   bbrelay.usa-dom.com # BBDISPLAY BBRELAY:1.2.3.4 smtp ssh
  4.3.2.3   client1.usa-dom.com # ftp telnet
  < more USA clients >
  1.2.3.4   bbdisp.india-dom.com # noconn
  1.2.3.5   bbrelay.india-dom.com # noconn
  1.2.3.6   client1.india-dom.com # noconn
  < more India clients >

In order to test this out, I'd start by getting relaying to work in
one direction first. This can be done quite quickly because it does
not need a dedicated relay machine. For example, in order to test
relaying from USA to India:

  ## bb-hosts file for config in India
  1.2.3.4   bbdisp.india-dom.com # BBDISPLAY BBNET BBPAGER ftp pop3
  1.2.3.6   client1.india-dom.com # ftp telnet
  < more India clients >
  4.3.2.1   bbdisp.usa-dom.com # noconn
  4.3.2.3   client1.usa-dom.com # noconn
  < more USA clients >

  ## bb-hosts file for config in USA
  4.3.2.1   bbdisp.usa-dom.com # BBDISPLAY BBNET BBPAGER
    BBRELAY:1.2.3.4 ftp pop3
  4.3.2.3   client1.usa-dom.com # ftp telnet
  < more USA clients >

You'll need to remove the log files from the USA server for all tests
that used to be sent from India, to avoid purple messaged during the
test. I'd also be tempted to stop most of the clients from running to
reduce the number of bb-hosts files that you need to modify.

Once that is working, you can configure and run a dedicated relay
machine in the USA (using a bb-hosts file like the one from the
first pair) and check that works as expected. Then you can set
up a dedicated relay in India.

Cheers, Phil.



-- 
Executive ability is deciding quickly to get somebody else to do
the work. (John G. Pollard)

--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=
To unsubscribe from this list, or to subscribe to the bb-digest list
send e-mail to mailto:majordomo@bb4.com with unsubscribe bb -and/or-
subscribe bb-digest in the BODY of the message.