Bugs item #2801629, was opened at 2009-06-05 11:50
Message generated for change (Settings changed) made by mlkersten
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2801629&group_id=56967

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: John van Schie (johnvanschie)
>Assigned to: Sjoerd Mullender (sjoerd)
Summary: Mserver sends no response, client hangs.

Initial Comment:
We are using MonetDB4, Feb2009-SP2, build from source (build log attached) with 
64bit OIDS.
The platform is Fedora core 10, with 64 GB RAM (55GB cached) and 99GB free disk 
space for the dbfarm.

Our application uses mclient to manipulate XML in the database. This morning, I 
saw a mclient process that did not terminate and is still running after approx. 
12 hours. Using strace on the mclient process shows that the process is waiting 
for blocking I/O. Executing a fresh mclient with the query "1+1" results in a 
stalled application, that also waits for blocking I/O. (see attached strace). 
It seems that Mserver stopped sending data to the clients.

To debug this problem, I've generated stack traces of all threads for the 
Mserver and a list of open files (lsof). The server is still running, and I 
plan to keep it running unless no more information is needed.
Unfortunately, the server is build with optimisation enabled and cannot share 
the data, as it is confidential.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2801629&group_id=56967

------------------------------------------------------------------------------
OpenSolaris 2009.06 is a cutting edge operating system for enterprises 
looking to deploy the next generation of Solaris that includes the latest 
innovations from Sun and the OpenSource community. Download a copy and 
enjoy capabilities such as Networking, Storage and Virtualization. 
Go to: http://p.sf.net/sfu/opensolaris-get
_______________________________________________
Monetdb-bugs mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/monetdb-bugs

Reply via email to