[HotFix] [SVCS-676] Fix Memory Leak During CSV Rendering #326
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cslzchen commented Mar 29, 2018
| options=json.dumps(size), | ||
| ) | ||
| # gc.collect() | ||
| raise exceptions.TableTooBigError( |
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Raise exception after with open() has finished.
mfr/extensions/tabular/render.py Outdated
| sheets=json.dumps(sheets), | ||
| options=json.dumps(size), | ||
| ) | ||
| # gc.collect() |
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Forcing garbage collection does not help, which is a good thing. I will remove the import and these statement after CR.
| break | ||
| | ||
| if table_too_big: | ||
| return None, None, nbr_rows, nbr_cols |
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This is an ugly way of using python's flexibility. Please advise!
cslzchen force-pushed the bug-fix/csv-memory-leak branch from a740bf9 to cb812b9 Compare 
- Delay exception raising until context manager `with open()` has finished. - _render_grid now returns a four element tuple (sheets, size, nbr_rows, nbr_cols), where the first two for success and the last two for the `TableTooLargeError`.
- Delay return until Context Manager `with open()` has finished and force GC in between. - Explicitly `del` data, reader, sheets when they are on longer used.
cslzchen force-pushed the bug-fix/csv-memory-leak branch from cb812b9 to 4aed951 Compare cslzchen changed the title 
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CSVare correctly rendered. Need more investigation.TableTooBigErrorexception is thrown.