https://bugs.documentfoundation.org/show_bug.cgi?id=118652
Bug ID: 118652
Summary: opening a large tab delimited file take a long time
when tab is not checked off as one of the default
delimiters.
Product: LibreOffice
Version: 6.0.5.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: kith.prad...@einstein.yu.edu
Description:
When I try to open a large file (~18mb) that is delimited by tab, sometimes it
takes calc a very long time to open. I noticed if I have tab as one of the
default delimiters already checked off, then opening the file only takes a few
seconds, but if tabs are unchecked it can take more than 30 minutes! For
larger files I've waited more than an hour before giving up and killing the
process.
I just found out I could work around this problem by first opening a small tab
delimited file, making sure to check off the tab checkbox, closing calc, then
opening the large tab delimited file.
For small files, when you open delimited txt you can usually fiddle with the
checkboxes on the loading screen to see which delimiter to use. I'm guessing
Calc is running into problems populating that preview table. Maybe it's
reading the entire line(or the entire file), not running into any expected
delimiters so it thinks there's just one super sized cell,then it's getting
stuck trying to allocate memory or initializing the sheet with default values
of those super sized cells? When tab is already one of the default delimiters
it takes less than a second to populate the preview panel.
Steps to Reproduce:
1. have a large tab delimited file
2. try to open it when tab is not checked off as one of the default delimiters
3. wait
Actual Results:
Takes too long to load. Usually I have to kill the process before then.
Expected Results:
It should have opened in a few seconds
Reproducible: Sometimes
User Profile Reset: No
Additional Info:
Version: 6.0.5.2
Build ID: 1:6.0.5~rc2-0ubuntu0.14.04.1~lo1
CPU threads: 8; OS: Linux 4.4; UI render: default; VCL: gtk2;
Locale: en-US (en_US.UTF-8); Calc: CL
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