Load balancer?

[Jaroslav Lukesh]

| Odesílatel: Vaclav Petricek <vpet4339 at kolej.mff.cuni.cz>
| shanim nejakej load balancer co by umel
| 
| 1) posilat jednoho klienata (jednu IP) porad na stejnej stroj
| 2) posilat dotazy na jedno URL na stejnej stroj.
| 3) Taky by samozrejme mel umet detekovat kdyz nekterej server umre a
| vynechat ho.
| 
| Na co jsem zadim narazil ...
| 
| SW:
| balance (http://sourceforge.net/projects/balance/) - umi jen 3)

Nevim, jestli je to same (ted jsem offline)

balance-2.16.tar.gz (mam to tady uz rok, mozna je novejsi)
http://balance.sourceforge.net, Thomas Obermair <obermair at acm.org>

The maximum number of groups and channels can handle is specified at
compile time and is initially 16 channels in 16 groups. 
Failover to another destination (a "channel") occurs if the connection is
refused on the current channel or if the connect timeout is reached trying
to establish a connection. If all possible destinations (channels)
currently fail,
the initial connection to balance itself is closed immediately. 

To se vam nelibi? A jak jinak to chcete udelat? Switch pro patou a vyssi
uroven si sice dovedu predstavit, ale dovedu si predstavit i narocnost (a
cenu) provedeni.

| squid - ?

Pod squidem si to nedovedu predstavit, možná tak s 50kB konfigurákem pro
ipchains. Ale to byste na to nepotøeboval pak toho squida. Leda že byste
chtìl jenom cachovat www server, aby se mu ulehèilo.

Zdraví

             Jaroslav Lukesh, K-net
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