MapOSMatic - Bugs: bug #36282, Non recovered crash of the...

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bug #36282: Non recovered crash of the rendering pipeline

Submitter:	David Mentré <dmentre>
Submitted:	Tue 24 Apr 2012 11:43:33 AM UTC


Category:	ocitysmap	Severity:	4 - Important
Priority: *	7 - High	Status:	Confirmed
Privacy:	Public	Assigned to:	mpetazzoni
Open/Closed:	Open	Release:	2012.04

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Tue 24 Apr 2012 02:43:52 PM UTC, comment #3: This might be of interest: http://djangosnippets.org/snippets/1707/	Maxime Petazzoni <mpetazzoni>
Tue 24 Apr 2012 12:25:26 PM UTC, comment #2: Thomas's analysis: a GEOS Intersection() error in the son rendering process triggers a crash in the father rendering daemon because the father is losing its connection to the database.	David Mentré <dmentre>
Tue 24 Apr 2012 11:49:28 AM UTC, comment #1: Backtrace of the father process: """ g:prod-instance maposmatic-prod/maposmatic> maposmatic> ./scripts/wrapper.py ./scripts/daemon.py Traceback (most recent call last): File "/home/maposmatic/maposmatic-prod/maposmatic/./scripts/daemon.py", line 253, in <module> daemon.serve() File "/home/maposmatic/maposmatic-prod/maposmatic/./scripts/daemon.py", line 78, in serve self.dispatch(job) File "/home/maposmatic/maposmatic-prod/maposmatic/./scripts/daemon.py", line 98, in dispatch return self.render(job, 'maposmaticd_%d_' % os.getpid()) File "/home/maposmatic/maposmatic-prod/maposmatic/./scripts/daemon.py", line 113, in render job.end_rendering(_RESULT_MSGS[ret]) File "/home/maposmatic/maposmatic-prod/maposmatic/www/maposmatic/models.py", line 140, in end_rendering self.save() File "/usr/lib/pymodules/python2.6/django/db/models/base.py", line 435, in save self.save_base(using=using, force_insert=force_insert, force_update=force_update) File "/usr/lib/pymodules/python2.6/django/db/models/base.py", line 497, in save_base manager.using(using).filter(pk=pk_val).exists())): File "/usr/lib/pymodules/python2.6/django/db/models/query.py", line 496, in exists return self.query.has_results(using=self.db) File "/usr/lib/pymodules/python2.6/django/db/models/sql/query.py", line 417, in has_results return bool(compiler.execute_sql(SINGLE)) File "/usr/lib/pymodules/python2.6/django/db/models/sql/compiler.py", line 727, in execute_sql cursor.execute(sql, params) File "/usr/lib/pymodules/python2.6/django/db/backends/postgresql_psycopg2/base.py", line 44, in execute return self.cursor.execute(query, args) django.db.utils.DatabaseError: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. zsh: exit 1 ./scripts/wrapper.py ./scripts/daemon.py """	David Mentré <dmentre>
Tue 24 Apr 2012 11:43:33 AM UTC, original submission: Sometimes, the rendering process crashes, crashing at the same time the daemon that handles jobs. The whole rendering pipeline is thus blocked. The daemon should handle gracefully such crash of the rendering process, but the logic is apparently failing sometimes. Here is an example of job that blocked everything: """ An error occured while rendering job #45269! Traceback (most recent call last): File "/home/maposmatic/maposmatic-prod/maposmatic/scripts/render.py", line 334, in run output_formats, prefix) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/__init__.py", line 465, in render file_prefix) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/__init__.py", line 520, in _render_one renderer = renderer_cls(self._db, config, tmpdir, dpi, file_prefix) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/layoutlib/single_page_renderers.py", line 548, in _init_ SinglePageRenderer.__init__(self, db, rc, tmpdir, dpi, file_prefix, None) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/layoutlib/single_page_renderers.py", line 78, in _init_ rc.i18n) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/indexlib/../indexlib/indexer.py", line 67, in _init_ + self._list_villages(db, polygon_wkt)) File "/home/maposmatic/maposmatic-prod/ocitysmap/ocitysmap2/indexlib/../indexlib/indexer.py", line 343, in _list_amenities cursor.execute(query) InternalError: GEOS Intersection() threw an error! Job information: administrative_city: Cazenovia, Madison County, New York, United States of America administrative_osmid: -175948 endofrendering_time: None id: 45269 index_queue_at_submission: 0 lat_bottom_right: None lat_upper_left: None layout: plain lon_bottom_right: None lon_upper_left: None map_language: en_US.UTF-8 maptitle: Cazenovia, New York nonce: XXXXXXXXXXXXXXX paper_height_mm: 594 paper_width_mm: 420 resultmsg: None startofrendering_time: 2012-04-24 13:33:25.548864 status: 1 stylesheet: Default submission_time: 2012-04-24 04:41:10.100107 submitterip: XXXXXXXXXXXXXXX You can view the job page at <http://www.maposmatic.org/jobs/45269>. """	David Mentré <dmentre>

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Date	Changed by	Updated Field	Previous Value	Replaced by
2012-04-24	mpetazzoni	Severity	3 - Normal	4 - Important
		Priority	5 - Normal	7 - High
		Assigned to	None	mpetazzoni
		Release	None	2012.04

MapOSMatic - Bugs: bug #36282, Non recovered crash of the...

bug #36282: Non recovered crash of the rendering pipeline

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