Re: [MonetDB-users] Server in a weird state....

On Nov 27, 2007 4:29 PM, m h wrote:

On Nov 27, 2007 4:05 PM, Martin Kersten wrote:

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m h wrote:

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I tried running the SQLAlchemy ORM testsuite. The first time it ran for a while and then mserver segfaulted. (It also grew to using 700+Megs of memory. Am assumming this is a monetdb issue, since after

not uncommon size. A point of concern is if you use like/ltrim/rtrim.... because there we detected a leak recently. which is fixed

I'm not aware of any trimming. But I'm also seeing memory growth as I run other unit tests. I'll put it on the backburner for now.

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The one show below is more serious... and we would love to be able to reproduce it using a small test. If infeasible.. then run the experiment again with 'valgrind' to detect the place where dirty memory is used, or double frees are generated.

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each test the tables are usually dropped). The server now has issues. It appears to start fine:

# MonetDB server v5.2.3, based on kernel v1.20.1 # Serving database 'demo' # Compiled for i686-pc-linux-gnu/32bit with 32bit OIDs dynamically linked # Copyright (c) 1993-2007 CWI, all rights reserved # Visit http://monetdb.cwi.nl/ for further information #warning: please don't forget to set your vault key! #(see /root/MonetDB/etc/monetdb5.conf) # Listening for connection requests on mapi:monetdb://127.0.0.1:50000/ # MonetDB/SQL module v2.20.3 loaded

When I try to connect with the command line client it complains repeatedly:

!ERROR: BUNdelete: access denied to tmp_537, aborting. !ERROR: BUNdelete: access denied to tmp_537, aborting. ....

Have attached a valgrind log using this command. Let me know if you want --leak-check=full or other options.

valgrind --log-file=/tmp/monetval.log ./bin/mserver5 --dbinit="include sql;"

I ran the SQLAlchemy ORM tests again today (I only have 6 issues left with the SQL tests!, mostly unicode and binary data issues). And the server segfaulted again. What can I do to help this situation? Run with valgrind? Explain howto run the SQLAlchemy test suite? thanks much, -matt