[postgis-users] 'server closed the connection unexpectedly' problem

Ionut Iordache ionut at eps.berkeley.edu
Fri Jan 28 10:36:26 PST 2005


srn> MM.. this is the second weird bug report related to points, but I
srn> can't reproduce this as well (PGGIS-1.0.0RC2 / PGSQL-7.4.3).

srn> Can you try RC2, creating a *new* db ?
srn> Can reproduce the bug on a single record ?
srn> What OS are you using ? Which compiler used to build postgis ?

srn> --strk;

Yes, I can reproduce the bug on a single point in a brand new db, with
my current postgis version...

I'll give it a try with RC2, although if it works it will be really
painful to transfer again the 45GB or more of data that I loaded before
extensively testing my release :(

I should have mentioned in my initial post, my os is Solaris 8 (sparc)
and everything compiled with gcc 3.4.1.

Anyway, is there anything more that I can do to troubleshot this
problem? It's very frustrating because even with debug5 enabled in the
logs, there's no hint about what goes wrong... I have the suspicion
that things break when postgres tries to actually load and use symbols
from liblwgeom.so.1.0

The only anomaly during compilation was that I had to specifically
link it against the gcc library because my configuration uses sun's
linker and it couldn't find a symbol (eprintf if I remember correctly)
defined in a static gcc library.


Friday, January 28, 2005, 12:04:20 AM, you wrote:

srn> On Thu, Jan 27, 2005 at 12:48:37PM -0800, Ionut Iordache wrote:
>> Hello,
>> I recently loaded large quantities of point data (close to half a
>> billion records) into postgresql-7.4.6 with postgis-cvs version 1.0.0
>> (as of 2005/01/13) and although the geometry creation and table
>> loading went smoothly, I can't use any of the postgis functions on the
>> POINT geometry columns!
>> For example, when I try to run something like SELECT X(point_geom)
>> FROM raw_data LIMIT 10; , I get the following error message:
>> server closed the connection unexpectedly
>>         This probably means the server terminated abnormally
>>         before or while processing the request.
>> The connection to the server was lost. Attempting reset: Failed.
>> The same thing happens when I try to execute the Distance function for
>> example. But if I do a SELECT AsText(point_geom), the records show up
>> just fine...
>> The log is not showing anything suspicious, except reporting that the
>> child process was terminated by signal 10.
>> I compiled postgres with LDFLAGS = -lstdc++ -lgcc and enabled geos and
>> proj4 in postgis.
>> Thanks for you assistance!

>> -- 
>> Best regards,
>> -----------------------------------------------
>> Dorel Ionut Iordache - <ionut at eps.berkeley.edu>
>> UC Berkeley - Earth & Planetary Science Dept.
>> _______________________________________________
>> postgis-users mailing list
>> postgis-users at postgis.refractions.net
>> http://postgis.refractions.net/mailman/listinfo/postgis-users
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Best regards,
Dorel Ionut Iordache - <ionut at eps.berkeley.edu>
UC Berkeley - Earth & Planetary Science Dept.

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