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Sounds like you would be dealing with 2 ISP's and 2 machines
here. i.e. If your ISP's server goes down, no 3rd party software
is going to be able to connect to your ISP's server either. It must
be routing to a different ISP server.
But that's just the tip of the iceberg as I'm sure you already know.
The following was taken from
the Quote.com homepage(today) and has been posted their for a
long time. Anyone reading this should gain an understanding of the
chain of events that takes place before data arrives at your machine
and consider the possibilities for breakdown. Can any third party
software overcome these issues? And if so, how many pieces of
software management tools would you be monitoring during the
trading day while trying to concentrate efforts on trading?
It seems to me that the internet(as beneficial as it is) is like a highway
under constant construction and always will be. Software and hardware
solutions may eventually overcome data loss but detours, traffic jams,
gridlock, stalled vehicles, and carjackers will not be disappearing anytime
soon.
Eventually, I can get any information I can imagine from the internet
but "eventually" is a scary term in a realtime open position.
As far as cost benefits of the internet, one data hole or one
event of a downed internet server anywhere in the chain could
easily cost me more than one month's fees on any service. And
has there ever been any one month where such an event has not
occurred?
dbs
Today: Friday, April 28
QCharts is experiencing light to moderate queuing delays.
Ongoing Issues:
1. Data Feed Bandwidth
Who is affected: Some LiveCharts and QCharts users
Symptoms: periodic delay in certain quotes, slowed or interrupted streaming
services.
We are currently experiencing bandwidth restriction on our data feed from S&P
Comstock, and it's causing a
bottleneck that has limited our streaming data services. As a result, all of the
data that we receive is prioritized
by S&P based on demand and potential bandwidth consumption. Option and Canadian
exchange data are most
affected during high volume markets. This process has been in place for over a
year.
Soon, we will be implementing a more effective, more permanent solution. We are
in the process of upgrading to
S&P's improved IP Feed, which provides up to three times the bandwidth of our
current connection. Once we
switch over to the faster IP Feed, our data will no longer be subject to any
sort of restriction.
We've nearly completed installation on a test server farm, and are working to
resolve some final network
connection issues with our ISP. Once that's completed, the testing phase will
take anywhere from two to eight
weeks to complete. We will keep you informed as developments unfold.
2. Queuing
Who is affected: Streaming Charts Users
Symptoms: Slow charting services, or service interruption
We are experiencing light to moderate server side queuing during the first and
last hour of the trading day. This
problem is both a capacity and a user issue, as avoidable, data-intensive
requests clog the overloaded servers.
To help resolve this issue, we're installing additional servers to service more
data requests simultaneously.
3. Additional Issues.
Over the past several weeks, we have had service issues with our hosting ISP
ranging from network data packet
losses to general stability issues. We are currently in the process of switching
to a higher-end provider. In order
to better manage general Internet stability and provide increased data
reliability, we are implementing multiple
feeds into this new ISP.
In addition to these specific issues, we're looking into ways to improve
performance and scalability by making
specific architectural changes. Recently, customers and our own monitoring
systems have experienced poor
connectivity to our server farms, resulting in instability and hampered the
performance of the streaming feed. It
can also result in load spikes, further impeding download speeds and
reliability. To improve the situation, we are
upgrading our server software and making other changes to improve peering. These
upgrades and improvements
will be made over the next several weeks.
We appreciate your feedback, suggestions and, at times, patience as we continue
to make these
improvements.
Please send email to ar@xxxxxxxxx for further questions, comments or concerns
regarding this update.
Best Regards,
Ray Bamer
Manager, Lycos Finance Client Services
Bob Heisler wrote:
> For those of us who are currently receiving data via the Net, or for those
> who have tried, it normally turns into a love-hate relationship. Internet
> outages are not uncommon and usually occur at the most inopportune times.
> This is further compounded if the platform you are using does not have
> auto-refresh capability (TS2k) as you will be left with holes in your data
> once the connection is restored. And if that isn't enough, we then have to
> deal with the quality of refresh data (or lack thereof) at the end of the
> day.
>
> But receiving data via the Net is not without it's advantages either, with
> lower costs near the top of that list. And if you are unable/unwilling to
> receive data via satellite or dedicated phone line for whatever reason, or
> if your chosen data provider doesn't support your preferred delivery method
> or platform, this can leave you with precious few alternatives if you find
> the Net unacceptable.
>
> Since I prefer to use the Internet if possible, and also stay with TS2k/PCQ,
> I have been searching for a solution to the reliability issues. And while I
> am not a technical person, a very good friend of mine is and has recommended
> a product from a company called Vicomsoft at www.vicomsoft.com. He has
> installed a number of these and has been extremely pleased with both the
> performance and reliability, but none of these installations have been in a
> trading scenario. The cost is in the $200-300 range.
>
> This solution involves setting up a secondary PC to use as a gateway or
> server to manage the Internet connection. Vicomsoft has a product called
> Fallback Server which provides automatic backup for Internet connections,
> with support for different connection types including DSL, cable, dialup,
> ISDN, wireless etc. With this feature enabled, a second, designated
> connection is automatically and seamlessly opened should the primary
> connection fail.
>
> I am not associated with Vicomsoft in any way, but this appears like a very
> attractive solution to at least try before scratching the Net and going to
> satellite/dedicated line.
>
> I am hoping to get a thread going here where some of the more technically
> savvy members could provide their thoughts, ideas, experiences, etc. with
> this idea.
>
> Thanks in advance,
>
> Bob Heisler
> www.rjhtrading.com
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