Hi Dannon,

We do have a local mirror here.  How to disable the estimation?

Thanks!

Chaolin


On Jul 31, 2011, at 11:38 AM, Dannon Baker wrote:

> Chaolin,
> 
> You guessed correctly as to why we implemented this, getting exact line 
> counts on very large files is a time consuming process.  You can still get an 
> exact line count using the Line/Word/Character count tool in the Text 
> Manipulation section.  
> 
> If you're interested in the way it currently works, the first 1MB of a large 
> file is read, and a line number approximation is made from that and the 
> assumption that line lengths don't vary dramatically throughout the file.  It 
> would slow down the metadata setting, but for a personal galaxy instance you 
> could certainly increase that number, or disable the estimation entirely.
> 
> -Dannon
> 
> 
> On Jul 31, 2011, at 11:11 AM, Chaolin Zhang wrote:
> 
>> Hi,
>> 
>> I noticed that the current version of galaxy shows approximate number of 
>> lines for history items, when it is relatively big.  I guess this is due to 
>> a consideration of performance, but it is quite annoying, because the exact 
>> line numbers provide a very easy way for users to get simple statistics.  
>> Sometimes the approximation can be really off. For instance, for one file 
>> with > 1 M lines, it shows ~850,000 lines.  Any thought?
>> 
>> Chaolin
>> 
>> 
>> 
>> 
>> 
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