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Added a small section about hot code replacement

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niklas 2011-05-04 14:18:42 +02:00
parent 46f5fed5f6
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@ -1752,10 +1752,6 @@ A very simple example of the flow through the GGS system when a game played.
\end_inset \end_inset
\end_layout
\begin_layout Standard
\end_layout \end_layout
\begin_layout Section \begin_layout Section
@ -2138,7 +2134,7 @@ name "sec:Availability"
One important factor of any server is the availability. One important factor of any server is the availability.
A server to which you are unable to connect to is a useless server. A server to which you are unable to connect to is a useless server.
Other then within telecomunication, their uptime is of about 99,9999999%, Other then within telecomunication, their uptime is of about 99,9999999%,
the game developer community hasn't approched this problem very genuinely the game developer community has not approched this problem very genuinely
yet so there is much room for improvement. yet so there is much room for improvement.
\end_layout \end_layout
@ -4502,6 +4498,17 @@ Distribution
Hot code replacement Hot code replacement
\end_layout \end_layout
\begin_layout Standard
Hot code replacement is a technique used to update systems while they are
running.
The main use of hot code replacement are in critical systems that require
low downtime, such as telecom systems.
By using hot code replacement system can be able to achieve as high uptime
as possible and thus improving the reliability of the system.
Code replacement is a feature that exist in Erlang which means that with
some work it could be implemented into the GGS.
\end_layout
\begin_layout Section \begin_layout Section
Implementation Implementation
\end_layout \end_layout
@ -5191,7 +5198,7 @@ Protocols
\end_layout \end_layout
\begin_layout Standard \begin_layout Standard
Because of TCP being a connection oriented protocol, it isn't suited for Because of TCP being a connection oriented protocol, it is not suited for
all types of game data transfers. all types of game data transfers.
Each transmission will consume more network bandwith than connectionless Each transmission will consume more network bandwith than connectionless
protocols like UDP and cause uneccessary load on the processor. protocols like UDP and cause uneccessary load on the processor.
@ -5204,7 +5211,7 @@ y on the GGS.
and fairness in gameplay and many game developers requires the freedom and fairness in gameplay and many game developers requires the freedom
to take care of safety issues as packet losses themselves. to take care of safety issues as packet losses themselves.
This concludes that UDP would be a benefit for the GGS, game developers This concludes that UDP would be a benefit for the GGS, game developers
and game players alike. and players alike.
\end_layout \end_layout
\begin_layout Subsubsection \begin_layout Subsubsection
@ -5219,7 +5226,6 @@ Currently Mnesia is used for game data storage.
system or use Mnesia in combination with the ETS module of erlang. system or use Mnesia in combination with the ETS module of erlang.
ETS provides fast access to the RAM and thus Mnesia could be used less ETS provides fast access to the RAM and thus Mnesia could be used less
frequently. frequently.
\end_layout \end_layout
\begin_layout Subsection \begin_layout Subsection
@ -5258,7 +5264,7 @@ Programming languages
\end_layout \end_layout
\begin_layout Standard \begin_layout Standard
The GGS doesn't support many programming languages. The GGS does not support many programming languages.
For a programming language to be compatible with the GGS, not only does For a programming language to be compatible with the GGS, not only does
it require a VM for that specific language, but the VM must have the ability it require a VM for that specific language, but the VM must have the ability
to communicate to Erlang. to communicate to Erlang.
@ -5271,12 +5277,15 @@ Documentation
\end_layout \end_layout
\begin_layout Standard \begin_layout Standard
To start the GGS isn't self explanatory. To start the GGS is not self explanatory.
This together with overall usage of GGS should be documented. This together with overall usage of GGS should be documented.
The interface for usage of game developers is also in need of documentation. The interface for usage of game developers is also in need of documentation.
Features and requirements with respect to the GGS would assist users to Features and requirements with respect to the GGS would assist users to
know what they need in order to use the GGS and how they would benefit know what they need in order to use the GGS and how they would benefit
of it. of it.
The GGS does not support many programming languages nor does it have a
complete documentation.
This needs to be taken care of in future versions.
\end_layout \end_layout
\begin_layout Chapter \begin_layout Chapter