Hi Anyone knows how to turn off the line number estimation and get the exact count for each dataset? 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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