[mapserver-dev] MapServer 6.0.0-beta2 release

Wed Mar 23 10:29:12 EDT 2011

Håvard,

Everything looks normal from what I can see. One thing you might try is 
to rebuild mapserver without threads and see if you get the same behavior.

So when you get a failure, does this request work if you try it again or 
does it always fail?

If it is randomly failing and working at other times then this feels 
like a thread corruption issue.

If is fails consistently, the you can debug bug it as Daniel suggested with:

gdb /path/to/mapserv
run "QUERY_STRING=map=...&mode=...&..."
bt
quit

And us (and cc: Thomas) the output from above.

Thanks,
   -Steve W

On 3/23/2011 6:19 AM, Havard Tveite wrote:
> On 3/22/2011 4:39 PM, Stephen Woodbridge wrote:
>> Håvard,
>>
>> How do you have apache configured.
>> apache2-mpm-prefork?
>> fastcgi or cgi?
>
> I use the default Ubuntu Apache2 distribution.
> cgi, not fastcgi.
>
>  > apache2ctl -V
> Server version: Apache/2.2.9 (Debian)
> Server built: Dec 11 2010 21:34:00
> Server's Module Magic Number: 20051115:15
> Server loaded: APR 1.2.12, APR-Util 1.2.12
> Compiled using: APR 1.2.12, APR-Util 1.2.12
> Architecture: 64-bit
> Server MPM: Prefork
> threaded: no
> forked: yes (variable process count)
> Server compiled with....
> -D APACHE_MPM_DIR="server/mpm/prefork"
> -D APR_HAS_SENDFILE
> -D APR_HAS_MMAP
> -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
> -D APR_USE_SYSVSEM_SERIALIZE
> -D APR_USE_PTHREAD_SERIALIZE
> -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
> -D APR_HAS_OTHER_CHILD
> -D AP_HAVE_RELIABLE_PIPED_LOGS
> -D DYNAMIC_MODULE_LIMIT=128
> -D HTTPD_ROOT=""
> -D SUEXEC_BIN="/usr/lib/apache2/suexec"
> -D DEFAULT_PIDLOG="/var/run/apache2.pid"
> -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
> -D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock"
> -D DEFAULT_ERRORLOG="logs/error_log"
> -D AP_TYPES_CONFIG_FILE="/etc/apache2/mime.types"
> -D SERVER_CONFIG_FILE="/etc/apache2/apache2.conf"
>
>  > apache2ctl -l
> Compiled in modules:
> core.c
> mod_log_config.c
> mod_logio.c
> prefork.c
> http_core.c
> mod_so.c
>
>> apache2ctl -M
> Loaded Modules:
> core_module (static)
> log_config_module (static)
> logio_module (static)
> mpm_prefork_module (static)
> http_module (static)
> so_module (static)
> alias_module (shared)
> auth_basic_module (shared)
> authn_file_module (shared)
> authz_default_module (shared)
> authz_groupfile_module (shared)
> authz_host_module (shared)
> authz_user_module (shared)
> autoindex_module (shared)
> cgi_module (shared)
> dir_module (shared)
> env_module (shared)
> jk_module (shared)
> mime_module (shared)
> negotiation_module (shared)
> php5_module (shared)
> proxy_module (shared)
> rewrite_module (shared)
> setenvif_module (shared)
> status_module (shared)
> userdir_module (shared)
> Syntax OK
>
>> What does mapserv -v report?
>
> MapServer version 6.0.0-beta2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
> SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV
> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
> SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=FASTCGI
> SUPPORTS=THREADS SUPPORTS=GEOS INPUT=POSTGIS INPUT=OGR INPUT=GDAL
> INPUT=SHAPEFILE
>
>> Can you reproduce this crash using shp2img?
>
> No, I have not been able to produce a crash using shp2img.
>
> Håvard
>
>>
>> Thanks,
>> -Steve W
>>
>> On 3/22/2011 11:32 AM, Havard Tveite wrote:
>>> I have done some tests on beta1 and beta2, mostly to
>>> check the new rendering behaviour of Mapserver 6.
>>>
>>> With both beta1 and beta2 I get frequent crashes -
>>> Apache "Internal Server Error". If I reload a map
>>> request a number of times, normally more than half
>>> of the requests result in an Apache "Internal Server
>>> Error".
>>> The Apache error logs only lists: "Premature end of
>>> script headers: mapserver-6beta"
>>>
>>> The "same" (except I have had to change some of the
>>> rendering things) map file has never caused a crash
>>> on 5.6.6.
>>>
>>> I am on 64 bit Debian Lenny (2.6.26-2-amd64), with
>>> Apache/2.2.9 (Debian). PostgreSQL version 8.3.5,
>>> PostGIS version 1.4.1. Configuration and compilation
>>> of Mapserver went fine.
>>> I have run with DEBUG ON, but can't find anything in the
>>> logs that I can relate to the crashes.
>>> The map file I use is reasonably complex, so it will
>>> probably be difficult to isolate the cause of the
>>> problem. A local PostgreSQL/PostGIS instance is the source
>>> of all the data, both point (26 classes), line (37 classes)
>>> and area (18 classes) symbols are rendered.
>>> The crashes continue to occur even if I remove the points,
>>> the lines or the areas. If I remove all the layers, I do
>>> not experience crashes.
>>> Even with very few objects rendered the crashes occur
>>> frequently.
>>>
>>> Håvard Tveite
>>>
>>>
>>> On 3/18/2011 8:48 PM, Daniel Morissette wrote:
>>>> Thanks to the hard work from everyone during the Montreal Code Sprint
>>>> this week (http://wiki.osgeo.org/wiki/Montreal_Code_Sprint_2011), the
>>>> MapServer Team is pleased to announce the release of MapServer
>>>> 6.0.0-beta2. This is the latest beta on our way to a final 6.0 release,
>>>> and includes a large number of fixes made during the Montreal Code
>>>> Sprint.
>>>>
>>>> The 6.0 release introduces important changes in key components of the
>>>> MapServer core (rendering, query and expressions), and for this reason
>>>> we count on you, MapServer power users, to help test the release in
>>>> your
>>>> respective environments and provide feedback (through the users list or
>>>> Trac tickets).
>>>>
>>>> This is the second of four planned beta releases and if all goes well a
>>>> final release should occur around the end of April. The full release
>>>> plan which also includes the list of new features and changes in this
>>>> release is available at:
>>>> http://mapserver.org/trunk/development/release/release-plan-6.0.html
>>>>
>>>> The list of fixes since beta1 is attached at the end of this message.
>>>> For a complete list see the HISTORY.TXT file at:
>>>>
>>>>
>>>> http://trac.osgeo.org/mapserver/browser/tags/rel-6-0-0-beta2/mapserver/HISTORY.TXT
>>>>
>>>>
>>>>
>>>> We have started working on a 5.6 -> 6.0 migration guide. This document
>>>> contains important notes on backwards incompatibilities or other
>>>> changes
>>>> required when upgrading to 6.0. It is not complete yet but we strongly
>>>> recommend that you review the latest version online at:
>>>>
>>>> http://mapserver.org/trunk/MIGRATION_GUIDE.html
>>>>
>>>> The source for this release can be downloaded at:
>>>>
>>>> http://mapserver.org/download.html
>>>> or
>>>> http://download.osgeo.org/mapserver/mapserver-6.0.0-beta2.tar.gz
>>>>
>>>> The binary distributions listed in the download page should be updated
>>>> with binaries for the new beta release in the next day or so.
>>>>
>>>> Once again we need your help to ensure a high quality product, so
>>>> please
>>>> help out by testing your applications with this new code base.
>>>>
>>>> Thanks! - The MapServer Team
>>>>
>>>>
>>>> Version 6.0.0-beta2 (2011-03-18)
>>>> --------------------------------
>>>>
>>>> - correct scaling of symbol GAP and PATTERN (#3752)
>>>>
>>>> - remove references to SWF/MING
>>>>
>>>> - CGI runtime substitution requires a validation pattern (was optional
>>>> before) (#3522)
>>>>
>>>> - add a default png8 outputformat that uses AGG/PNG with quantization
>>>>
>>>> - change MS_INIT_COLOR to take alpha as a parameter
>>>>
>>>> - stop using style->opacity in rendering code, use alpha from
>>>> colorObjs.
>>>>
>>>> - Fixed big Oracle memory leak when rendering in KML (#3719)
>>>>
>>>> - avoid linking in postgres dependencies unnecessarily (#3708)
>>>>
>>>> - don't initialize outputformats until they are selected
>>>>
>>>> - use "seamless" creation of tiles for polygon fills with vector
>>>> symbols
>>>>
>>>> - Ability to escape single/double quotes inside a string (#3706)
>>>>
>>>> - Globally replace msCaseFindSubstring with strcasestr (#3255)
>>>>
>>>> - support GROUP layers in shp2img (#3746)
>>>>
>>>> - Honour MAXSIZE for WCS 2.0 responses (#3204).
>>>>
>>>> - fallback to ows_title for WCS ows:Title of CoverageDescription
>>>> (#3528)
>>>>
>>>> - Added msIO_stripStdoutBufferContentHeaders() to strip off all
>>>> Content-* headers from a buffer (#3673, #3665).
>>>>
>>>> - Added raster classification support for STYLE level OPACITY.
>>>>
>>>> - Allow attribute references, that is [itemname], within a TEXT string
>>>> (#3736)
>>>>
>>>> - Fixed segmentation fault when parsing invalid extent arguments in
>>>> shp2img (#3734)
>>>>
>>>> - Make "openlayers mode" work even without OWS support (#3732)
>>>>
>>>> - Add a static table to define the axis order for soem epsg codes
>>>> (#3582)
>>>>
>>>> - Add possibility to use KML_NAME_ITEM (#3728)
>>>>
>>>> - Fixed mapfile parsing error when a label angle referenced an
>>>> attribute
>>>> (e.g. ANGLE [angle]) #3727
>>>>
>>>> - Removed executable flag on some source files (#3726)
>>>>
>>>> - Fixed SQL Spatial to be able to use UniqueIdentifier field as unique
>>>> key (#3722)
>>>>
>>>> - Fix PHP Windows build (#3714)
>>>>
>>>> - Fixed --with-opengl build issue: Look for OpenGL libs under
>>>> /usr/lib64 as
>>>> well (#3724)
>>>>
>>>>
>>>> _______________________________________________
>>>> mapserver-dev mailing list
>>>> mapserver-dev at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-dev
>>>
>>
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>