[issue3002] Out of memory on update, log w/ stat, diff, ...

[Zoltan Ormandi]

New submission from Zoltan Ormandi <zoltan.ormandi at twistedtribe.com>:

Hi,

We're having a problem using Mercurial with a "big" file. The file in
question is a text file (an SQL dump) and is about 17MB in size. The VCS
worked fine so far, but last week we ran into a problem where we got "abort:
out of memory" errors when trying to update to the latest revision of a
branch in our repo. The details are:

File: sql dump, 17MB with a diff (.d) file size of 9MB (about 200 revisions)
OS & software: 32-bit Windows 7, Mercurial 1.9.2

Command line "hg" outputs:

prompt>hg update --debug --trace 8836

  searching for copies back to rev 8836
  unmatched files in other:
   Server/Sql/patches/static/0072_gui_enums_new_buttons.sql
resolving manifests
 overwrite False partial False
 ancestor 28ce874789e6 local 28ce874789e6+ remote ac5c168c7987
 Server/Sql/static.data.sql: remote is newer -> g
 Server/Sql/patches/static/0072_gui_enums_new_buttons.sql: remote created -> g
updating: Server/Sql/patches/static/0072_gui_enums_new_buttons.sql 1/2 files
(50.00%)
getting Server/Sql/patches/static/0072_gui_enums_new_buttons.sql
updating: Server/Sql/static.data.sql 2/2 files (100.00%)
getting Server/Sql/static.data.sql
Traceback (most recent call last):
  File "mercurial\dispatch.pyo", line 87, in _runcatch
  File "mercurial\dispatch.pyo", line 688, in _dispatch
  File "mercurial\dispatch.pyo", line 463, in runcommand
  File "mercurial\dispatch.pyo", line 742, in _runcommand
  File "mercurial\dispatch.pyo", line 696, in checkargs
  File "mercurial\dispatch.pyo", line 685, in <lambda>
  File "mercurial\util.pyo", line 385, in check
  File "mercurial\commands.pyo", line 5133, in update
  File "mercurial\hg.pyo", line 395, in update
  File "mercurial\merge.pyo", line 554, in update
  File "mercurial\merge.pyo", line 350, in applyupdates
  File "mercurial\context.pyo", line 360, in data
  File "mercurial\filelog.pyo", line 38, in read
  File "mercurial\revlog.pyo", line 902, in revision
MemoryError
abort: out of memory


prompt>hg log --debug --trace --stat static.data.sql

Traceback (most recent call last):
  File "mercurial\dispatch.pyo", line 87, in _runcatch
  File "mercurial\dispatch.pyo", line 688, in _dispatch
  File "mercurial\dispatch.pyo", line 463, in runcommand
  File "mercurial\dispatch.pyo", line 742, in _runcommand
  File "mercurial\dispatch.pyo", line 696, in checkargs
  File "mercurial\dispatch.pyo", line 685, in <lambda>
  File "mercurial\util.pyo", line 385, in check
  File "mercurial\extensions.pyo", line 137, in wrap
  File "mercurial\util.pyo", line 385, in check
  File "hgext\graphlog.pyo", line 397, in graph
  File "mercurial\util.pyo", line 385, in check
  File "mercurial\commands.pyo", line 3447, in log
  File "mercurial\cmdutil.pyo", line 1136, in iterate
  File "mercurial\commands.pyo", line 3445, in prep
  File "mercurial\cmdutil.pyo", line 617, in show
  File "mercurial\cmdutil.pyo", line 704, in _show
  File "mercurial\cmdutil.pyo", line 716, in showpatch
  File "mercurial\cmdutil.pyo", line 566, in diffordiffstat
  File "mercurial\patch.pyo", line 1847, in diffstatui
  File "mercurial\patch.pyo", line 1807, in diffstat
  File "mercurial\patch.pyo", line 1788, in diffstatdata
  File "mercurial\util.pyo", line 1188, in iterlines
  File "mercurial\patch.pyo", line 1685, in trydiff
  File "mercurial\context.pyo", line 360, in data
  File "mercurial\filelog.pyo", line 38, in read
  File "mercurial\revlog.pyo", line 902, in revision
MemoryError
abort: out of memory

This bug is an absolute blocker for us, to the point where we have to
consider migrating to a new VCS if you can't find a fix/workaround soon.

Thanks.

----------
messages: 17369
nosy: puzzles
priority: critical
status: unread
title: Out of memory on update, log w/ stat, diff, ...

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<http://mercurial.selenic.com/bts/issue3002>
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