Hobbit Server H.A. idea: hobbit client rework

I am interested to see Hobbit server to have  High Availability soluation. There were some discussions on the list. Following is another idea.


The current design does allow hobbit client to send message to two hb server at the same time.
See following,

hbclient> grep ^BBDISP hobbitclient.cfg
BBDISP="0.0.0.0"  # IP address of the Hobbit server
BBDISPLAYS="hbs.test.com hbs2.test.com"  # IP of multiple Hobbit servers. BBDISP must be "0.0.0.0".
hbclient>

But this duplication can impose network traffic penalty on a site with large hb clients installation.

The data from hbs to hbs2 can be mirrored using DRBD(hb server on Linux) or AVS(Hobbit server on Soalris).

1. Rework hb client send to hbs2.test.com in  BBDISPLAYS list  ONLY if hbs.test.com is not reachable ?
2. or adding a new variable BBDISPBK when BBDISP or BBDISPLAYS servers are not reachable ?


Comments ?

T.J. Yang

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