Yahoo Data 101 - Appendix 2 Hello,
1) The non-working servers were removed from the list in the latest version of AQ. All the other seem to work fine. The rotation is to reduce the chance of being blocked by the server if you place too many requests in a short time (so - you can speed-up the download) - Right now - all the servers which are left are working OK. 2) These are settings that allow you to SLOW DOWN the downloads if you're being blocked by Yahoo because of too many requests in a short time - this is done by increasing the initial delay time and decreasing the simultaneous downloads. 3) AmiQuote will retry the downloads and if not sucessful - the apropriate message will be displayed (and no data will be downloaded). Best regards Marcin Gorzynski Amibroker.com Technical Support ----- Original Message ----- From: "Brian.B" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, July 05, 2006 4:48 PM Subject: [#31286] Amiquote > Hello Marcin, > > > > AmiQuote V 1.9 > AmiBroker betaV4.81.1 > > Q1. > Referring to the copy from the AQ readme file below what are the dates > that the V1.68 statments were made? (editors note i.e. server rotation). > Are they still correct? > Are B & D the up to date servers? > Is there any chance of AQ downloading data from the 'old' servers or have > you found a way around it. > > Why add server rotation in the reg version if rotation leads to old data > servers? > > Does the 'old' data/server comment apply to current and fundamental data > i.e. does the current and fundamental data also come through the load > balancing server? > > Q2. > > What is the function of the 3 built-in settings sets: "fail safe > default", "modem", "dsl/cable" (see Tools->Settings page), user-defined > > Q3. > > What happens in AQ during a download if the link to the server fails? > Is there any chance of data corruption from intermittent interruptions to > the connection? > > Regards, > > Brian B. Thus endith Yahoo Data 101. --- In [email protected], "brian.z123" <[EMAIL PROTECTED]> wrote: > > Allan, > > I have very little experience of Yahoo/AmiQuote but from my initial > trials I have two areas of concern: > > 1. From the help files V1.90 Beta June8, 2006 > > Yahoo uses server load-balancing so data are delivered by many > servers "appearing" under one URL. Problem is that some servers from > timem to time are not updated (offer only old data) while others are > up-to-date. This new setting allows to handle such cases by selecting > the server that is up-to-date. Default setting is "ichart.yahoo.com" > which works in usual load-balancing scheme (switched servers). But you > can also select Server B, C, D, and E. As of today (June 8th) servers > B and D offer up-to-date data, while server C and E offer old data > (only upto 4th and 3rd of June respectively). This may however change > at any time. Please note that selection of Servers C, D and E is > available only in registered version of AmiQuote. > > That is from the notes for an earlier version so I am not sure what > year that is relevant to, if it still applies and/or if it only > applies to historical data or to current and fdata downloads as well. > > 2. My second concern was to find out if it is possible to create holes > in the data by mis-managing the download(s). > > After a little playing around I am of the opinion that AQ works by > backfilling from the biggest 'hole' in the data to the present by > default except where the user asks for more data than the default date > via use of the 'download from' date. > It appears that it is either not possible or difficult > to 'create'holes via AQ downloading but it is something to watch out > for. > > Brian. > > P.S > > A couple of minor points re the difficulty of managing symbol lists > with Yahoo: > > I haven't found a way to get a complete list of all symbols that Yahoo > has data for and also while the consituent lists for indices can be > downloaded manually they can only be taken 50 at a time. > For large indexes it is a bit cunmbersome and then the lists have to > be patched together. > > > --- In [email protected], "matrix10014" <allansn@> wrote: > > > > Hi all, > > Just setting up Ami,for the first time and was wondering if there > were > > any strong feelings regarding yahoo EOD vs Quotes plus?? > > > > Any major benefits or drawbacks?? > > > > Any insight appreciated > > > > Allan > > > ------------------------ Yahoo! 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